Maintenance pick-up trolley for transformer substation

Abstract

The invention relates to the technical field of electric power equipment bearing and lifting devices, in particular to an overhaul pick-up trolley for a transformer substation. Comprising a five-point type lifting mechanism, a transverse movement fine adjustment mechanism and a distance adjustment mechanism which are installed on a bearing table. The five-point type lifting mechanism comprises a lifting machine and a lifting motor which are fixed to the bearing table, the lifting machine and the lifting motor control a lifting rod to ascend and descend through gear meshing, the transverse movement fine adjustment mechanism takes a left-right moving disc as a base, and the distance adjustment mechanism comprises a distance chassis fixed to a sliding block above a fine adjustment sliding rail. Two rows of spacing slide rails are mounted on the spacing chassis, two L-shaped slide ways are fixed on the two spacing slide rails, a gear motor is mounted in the center of the spacing chassis and is meshed with two transverse left-hand screw rods through gears, and each screw rod penetrates through a shaft sleeve at the bottom of the corresponding slide way and is in threaded connection with the shaft sleeve; by adopting the five-point lifting mechanism, stable lifting, center shaft deviation and distance change can be ensured when the handcart is borne, and the five-point lifting mechanism has a wide market prospect.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment load-bearing lifting devices, and in particular to a maintenance and transportation trolley for a transformer substation. Background Art

[0002] At present, the circuit breaker trolley in the high-voltage room of the substation is the main equipment for sending in and out the circuit breaker when installing and debugging the switch cabinet or repairing the equipment. During the use of the existing maintenance pick-up trolley, due to the different working heights of different manufacturers or different equipment, the maintenance trolley needs to adjust the working height of the switch cabinet according to the docking situation. However, during the adjustment process, since the maintenance trolley requires manpower for overall adjustment, it is easy to cause problems such as excessive force or back and forth adjustment, which seriously affects the work efficiency and also poses a safety hazard. Summary of the invention

[0003] In order to make up for the deficiencies in the prior art and achieve the above functions, the present invention provides a maintenance pick-up trolley for a substation.

[0004] The present invention is achieved through the following technical solutions: A maintenance pick-up trolley for a substation, comprising a five-point lifting mechanism, a transverse fine-tuning mechanism and a spacing adjustment mechanism installed on a bearing platform; The five-point lifting mechanism includes a lifter and a lifting motor fixed on the bearing platform, which control the lifting of the lifting rod through gear meshing. A disc-shaped fixing plate is installed on the top of the lifting rod, and also includes a telescopic column passing through four guide sleeves; The transverse fine-tuning mechanism is fixed above the five-point lifting mechanism, with the left-right moving plate as the base, and two rows of fine-tuning slide rails are arranged at the front and rear ends of the left-right moving plate, and an electric cylinder is installed between the two fine-tuning slide rails; The spacing adjustment mechanism includes a spacing chassis fixed on a slider above a fine-tuning slide rail, two rows of spacing slide rails are installed on the spacing chassis, and two L-shaped slideways are fixed on the two spacing slide rails, the two slideways are oriented in a front-to-back direction and are symmetrical left-right, a shaft sleeve is fixed at the bottom of each slideway, a gear motor is installed at the center of the spacing chassis, the gear motor is meshed with two lateral reverse screws through gears, and each screw passes through the shaft sleeve at the bottom of the slideway and is threadedly connected to the shaft sleeve.

[0005] Furthermore, the bearing platform is fixed above the supporting cabinet, each telescopic column passes through the upper end surface of the bearing platform and the supporting cabinet, a counterweight is installed in the supporting cabinet, the supporting cabinet is fixed on the chassis, and universal wheels are installed at the four corners of the chassis.

[0006] Furthermore, the left-right movable plate is fixed to the lifting platform below through connecting columns at four corners, the bottom surface of the lifting platform is fixedly connected to the upper end surface of the fixed plate and the telescopic column, and a two-step stepped buckle is fixed on the front end surface of the lifting platform.

[0007] Furthermore, the left and right sides of the left and right moving disk are open structures, and the front and rear are plate structures. The rear half is equipped with a moving handle, a lifting button, a spacing operating lever and left and right fine-tuning levers; the electric push rod of the electric cylinder is fixedly connected to the conventional fixed block at the bottom of the spacing chassis, thereby controlling the left and right movement of the spacing chassis and the entirety above it.

[0008] Furthermore, the spacing chassis has an open structure in the front-to-back direction and a plate structure in the left-to-right direction, and both left and right plates are fixedly connected to the spacing rails and the lead screw. An opening is provided on the spacing chassis at a position corresponding to the position of the electric cylinder to avoid interference and facilitate installation, and a limit box is installed in the center of the spacing chassis to cover the opening and the gear motor.

[0009] Furthermore, the slide is oriented in the front-to-back direction, the bottom surface of the front end of the slide is longer than the side surface and is wedge-shaped, and a stop column is provided at the rear end of each slide.

[0010] The beneficial effects of the present invention are: The present invention is applied to the transportation of trolleys in high-voltage switch cabinets. A five-point lifting mechanism is adopted to ensure smooth lifting when carrying the trolley. The provided transverse shift fine-tuning mechanism can change the slideway to accurately align the center line of the trolley. The provided spacing adjustment mechanism can adapt to trolleys of different specifications and widths, so that the two rows of wheels of the trolley in the switch cabinet can enter the slideway. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a three-dimensional schematic diagram of the five-point lifting mechanism of the present invention; Figure 3 It is a three-dimensional schematic diagram of the pick-up and drop-off platform of the present invention; Figure 4 This is a three-dimensional top view schematic diagram of the present invention after removing the limit box; Figure 5 It is the right side view of the present invention.

[0012] In the figure: 1. Elevator, 101. Lifting rod, 102. Lifting motor, 2. Fixed plate, 201. Lifting platform, 202. Connecting column, 3. Telescopic column, 301. Guide sleeve, 4. Load-bearing platform, 5. Support cabinet, 6. Chassis, 601. Universal wheel, 7. Left and right moving plate, 701. Fine-tuning slide rail, 702. Moving handle, 703. Spacing operating lever, 704. Left and right fine-tuning lever, 705. Lifting button, 706. Limit box, 8. Spacing chassis, 801. Spacing slide rail, 802. Baffle, 9. Gear motor, 901. Screw, 10. Slide, 1001. Stop column, 11. Electric cylinder 1101. Electric push rod, 12. Step buckle. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0015] like Figures 1 to 5 As shown, the present invention includes a five-point lifting mechanism, a lateral fine-tuning mechanism and a spacing adjustment mechanism installed on a bearing platform 4; The five-point lifting mechanism includes a lifter 1 and a lifting motor 102 fixed on a carrier platform 4, which control the lifting of a lifting rod 101 through gear meshing. A disc-shaped fixing plate 2 is installed on the top of the lifting rod 101, and also includes a telescopic column 3 passing through four guide sleeves 301; The transverse fine-tuning mechanism is fixed above the five-point lifting mechanism, with the left-right movable plate 7 as the base, and two rows of fine-tuning slide rails 701 are arranged at the front and rear ends of the upper end of the left-right movable plate 7, and an electric cylinder 11 is installed between the two fine-tuning slide rails 701; The spacing adjustment mechanism includes a spacing chassis 8 fixed on a slider above the fine-tuning slide rail 701 to carry the relevant components of the spacing adjustment. Two rows of spacing slide rails 801 are installed on the spacing chassis 8 and two L-shaped slideways 10 are fixed on the two spacing slide rails 801. The function is to support, contact and guide the wheels at the bottom of the circuit breaker trolley. The two slideways 10 are oriented in the front-to-back direction and are symmetrical left-right. A shaft sleeve is fixed at the bottom of each slideway 10. A gear motor 9 is installed at the center of the spacing chassis 8, which is meshed with two horizontal reverse screws 901 through gears. Each screw 901 passes through the shaft sleeve at the bottom of the slideway 10 and is threadedly connected to the shaft sleeve.

[0016] The bearing platform 4 is fixed above the supporting cabinet 5, and each telescopic column 3 passes through the upper end surface of the bearing platform 4 and the supporting cabinet 5. A counterweight block is installed in the supporting cabinet 5 to prevent the whole machine from tilting. The supporting cabinet 5 is fixed on the chassis 6, and the four corners of the chassis 6 are installed with universal wheels 601 for facilitating the steering of the whole machine.

[0017] The left-right movable plate 7 is fixed to the lifting platform 201 below through the connecting columns 202 at the four corners. The bottom surface of the lifting platform 201 is fixedly connected to the upper end surfaces of the fixed plate 2 and the telescopic column 3. Two-step stepped buckles 12 are fixed on the front end surface of the lifting platform 201, so that when the machine is in place, it overlaps the bottom surface of the switch cabinet to ensure that it cannot move forward, that is, the position is limited.

[0018] The left and right sides of the left and right movable plate 7 are open structures, and the front and back are plate structures. The rear half is equipped with a moving handle 702, a lifting button 705, a spacing operating rod 703 and a left and right fine-tuning rod 704; the electric push rod 1101 of the electric cylinder 11 is fixedly connected to the conventional fixed block at the bottom of the spacing chassis 8, and then controls the spacing chassis 8 and the entire above to move left and right through telescoping.

[0019] The spacing chassis 8 is an open structure in the front-to-back direction and a plate structure in the left-to-right direction, and both left and right plates are fixedly connected to the spacing rail 801 and the lead screw 901. An opening is provided on the spacing chassis 8 at a position corresponding to the position of the electric cylinder 11 to avoid interference and facilitate installation. A limit box 706 is installed in the center of the spacing chassis 8 to cover the opening and the gear motor 9, which can limit the spacing of the slides 10 on both sides while protecting the mechanical structure.

[0020] The slide 10 is oriented in the front-to-back direction, the bottom surface of the front end of the slide 10 is longer than the side surface and is wedge-shaped, and a stop column 1001 is provided at the rear end of each slide 10 to limit the position of the trolley when being pulled out on the slide 10.

[0021] The working principle of the present invention is as follows: (1) Push the device to the corresponding position of the circuit breaker trolley, and use the button to control the lifter 1 to the appropriate position. During this period, since the lifting rod 101 is in the center position, the four corners are provided with telescopic columns limited by the guide sleeve 301. During the lifting process, it is in a five-point lifting, ensuring the horizontality of the upper components. (2) After opening the cabinet door of the high-voltage circuit breaker, for the position that is not aligned, according to the actual control electric cylinder 11, the spacing chassis 8 is moved horizontally to the left and right, that is, the horizontal movement fine adjustment mechanism can change the aligned center axis. (3) For the spacing of the two rows of wheels of the circuit breaker trolley, due to different specifications, the spacing of the two rows of wheels of the trolley may be different. At this time, the gear motor 9 is controlled to rotate, and then the lead screws 901 on both sides are rotated, driving the slideway 10 to move closer or farther from each other to achieve a suitable spacing. (4) Pull the trolley in the switch cabinet out onto the slideway 10, and the rotating wheel at the bottom of the trolley is blocked by the stop column 1001, and the process ends.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A maintenance pick-up vehicle for a substation, characterized in that: It comprises a five-point lifting mechanism, a transverse fine-tuning mechanism and a spacing adjustment mechanism installed on a bearing platform (4); The five-point lifting mechanism comprises a lifter (1) and a lifting motor (102) fixed on a bearing platform (4), the two controlling the lifting of a lifting rod (101) through gear meshing, a disc-shaped fixing plate (2) being installed on the top of the lifting rod (101), and also comprising a telescopic column (3) passing through four guide sleeves (301); The transverse fine-tuning mechanism is fixed above the five-point lifting mechanism, with the left-right movable plate (7) as the base, two rows of fine-tuning slide rails (701) are arranged at the front and rear ends of the upper end of the left-right movable plate (7), and an electric cylinder (11) is installed between the two fine-tuning slide rails (701); The spacing adjustment mechanism comprises a spacing chassis (8) fixed on a slider above a fine-tuning slide rail (701), two rows of spacing slide rails (801) are installed on the spacing chassis (8), and two L-shaped slideways (10) are fixed on the two spacing slide rails (801), the two slideways (10) are oriented in a front-to-back direction and are symmetrical left-right, a shaft sleeve is fixed at the bottom of each slideway (10), a gear motor (9) is installed at the center of the spacing chassis (8), and the gear motor (9) is meshed with two transverse reverse thread lead screws (901) through gears, and each lead screw (901) passes through the shaft sleeve at the bottom of the slideway (10) and is threadedly connected to the shaft sleeve.

2. The maintenance pick-up vehicle for substation according to claim 1 is characterized in that: The bearing platform (4) is fixed above the supporting cabinet (5), each telescopic column (3) passes through the upper end surface of the bearing platform (4) and the supporting cabinet (5), a counterweight block is installed in the supporting cabinet (5), the supporting cabinet (5) is fixed on the chassis (6), and universal wheels (601) are installed at the four corners of the chassis (6).

3. The maintenance pick-up vehicle for substation according to claim 2 is characterized in that: The left-right movable plate (7) is fixed to the lifting platform (201) below via connecting columns (202) at four corners; the bottom surface of the lifting platform (201) is fixedly connected to the upper end surfaces of the fixed plate (2) and the telescopic column (3); and a two-step stepped buckle (12) is fixed to the front end surface of the lifting platform (201).

4. The maintenance pick-up vehicle for a substation according to claim 1 is characterized in that: The left and right sides of the left-right moving plate (7) are open structures, and the front and rear sides are plate structures. The rear half of the plate is equipped with a moving handle (702), a lifting button (705), a spacing operating rod (703) and a left-right fine-tuning rod (704). The electric push rod (1101) of the electric cylinder (11) is fixedly connected to a conventional fixed block at the bottom of the spacing chassis (8), thereby controlling the spacing chassis (8) and the entire plate above to move left and right.

5. The maintenance and transportation vehicle for substation according to claim 1 is characterized in that: The spacing chassis (8) is an open structure in the front-to-back direction and a plate structure in the left-to-right direction, and both the left and right plates are fixedly connected to the spacing rail (801) and the lead screw (901). An opening is provided on the spacing chassis (8) at a position corresponding to the position of the electric cylinder (11) to avoid interference and facilitate installation. A limit box (706) capable of covering the opening and the gear motor (9) is installed at the center of the spacing chassis (8).

6. The maintenance pick-up vehicle for substation according to claim 1 is characterized in that: The slideway (10) is oriented in the front-to-back direction, the bottom surface of the front end of the slideway (10) is longer than the side surface and is wedge-shaped, and a stop column (1001) is provided at the rear end of each slideway (10).

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