A general transfer trolley for electrical equipment of a substation
Patent Information
- Application Number
- CN202522520234.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-27
AI Technical Summary
[0002]变电站电气设备是电力系统中实现电压变换、电能分配、传输及控制保护的核心装备，主要分为一次设备和二次设备，一次设备直接参与电能生产与传输，包括变压器（实现电压升降）、断路器（切断故障电流）、隔离开关（隔离带电部分）、互感器（电压/电流变换供测量用）、避雷器（限制过电压）、电容器（无功补偿）及电缆/母线（电能传输通道）等；二次设备是对一次设备进行监测、控制与保护，如继电保护装置（快速切除故障）、自动化控制系统（远程调控设备状态）、计量仪表（电能数据采集）、直流电源系统（为控制回路供电）及通信设备（数据传输）等；这些设备通过协同工作，构成变电站的“心脏”与“神经”，确保电网安全稳定运行；在变电站设备运营过程中，变电站电气设备会使用转运小车对配电柜内部的变压器、断路器、互感器等设备进行室内外的转运，现有的转运小车转运高度受限，当需要对不同高度的配电柜内部电气设备进行转运时，只能通过适配不同高度的转运小车，从而影响到电气设备的转运效率
[0007]当需要转运设备时，将本实用新型移动到被转运设备附近，通过升降脚踏开关控制开启液压缸的输出轴进行伸缩，液压缸的伸缩轴带动水平横担升起或降落，水平横担又带动两套筒沿门字形龙门架的前侧立柱和后侧立柱向上升起或落下，而两套筒带动转运斗升降到需要的位置后，通过打开可开合门体后，将被转运设备移动到转运斗内，然后，关闭可开合门体，之后，推动小车实现对设备转运；本实用新型可根据被转运设备的重量调整车体底架横梁中的可伸缩套管的位置，使小车更稳定；在转运斗升降过程中，当接触开关触地时，会开启限位指示灯进行提示。
Smart Images
Figure CN224829158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment transportation technology, specifically a universal transfer trolley for substation electrical equipment. Background Technology
[0002] Substation electrical equipment is the core equipment in a power system that realizes voltage transformation, power distribution, transmission, and control and protection. It is mainly divided into primary equipment and secondary equipment. Primary equipment directly participates in power generation and transmission, including transformers (to realize voltage rise and fall), circuit breakers (to interrupt fault current), disconnecting switches (to isolate energized parts), instrument transformers (to transform voltage / current for measurement), surge arresters (to limit overvoltage), capacitors (for reactive power compensation), and cables / buses (power transmission channels), etc. Secondary equipment monitors, controls, and protects the primary equipment, such as relay protection devices (to quickly clear faults) and automatic control systems (for remote control). The equipment includes equipment status, metering instruments (electrical energy data acquisition), DC power supply system (powering the control circuit), and communication equipment (data transmission). These devices work together to form the "heart" and "nerves" of the substation, ensuring the safe and stable operation of the power grid. During the operation of substation equipment, electrical equipment is moved indoors and outdoors using transfer trolleys to transport transformers, circuit breakers, instrument transformers, and other equipment inside the distribution cabinets. The existing transfer trolleys have limited transfer height. When it is necessary to transfer electrical equipment inside distribution cabinets of different heights, it is necessary to use transfer trolleys of different heights, which affects the transfer efficiency of electrical equipment. Summary of the Invention
[0003] This utility model provides a universal transfer trolley for electrical equipment in substations, enabling convenient transfer of equipment of various heights.
[0004] This utility model solves the above technical problems through the following technical solution: A universal transfer trolley for substation electrical equipment includes two parallel chassis beams. Lockable omnidirectional wheels are installed at the lower ends of both ends of the chassis beams. A gantry frame connecting base is fixedly installed at the center of the top surface of the chassis beams. A portal-shaped gantry frame is connected to the gantry frame connecting base. A counterweight longitudinal beam connects the two chassis beams, and a hydraulic cylinder is installed on the top surface of the counterweight longitudinal beam. A front... A sleeve is provided on the rear column of the portal frame. A horizontal crossbeam is fixedly connected between the upper part of the front sleeve and the upper part of the rear sleeve. The upward extension shaft of the hydraulic cylinder is fixedly connected to the middle of the horizontal crossbeam. A cantilever transfer bucket front connecting seat is fixedly connected to the front sleeve, and a cantilever transfer bucket rear connecting seat is fixedly connected to the rear sleeve. A transfer bucket is connected between the cantilever transfer bucket front connecting seat and the cantilever transfer bucket rear connecting seat. An openable and closable door is provided at the outer end of the transfer bucket.
[0005] On the top surface of the counterweight longitudinal beams on both sides of the hydraulic cylinder, there are lifting pedals for controlling the raising of the hydraulic cylinder output shaft and lowering pedals for controlling the lowering of the hydraulic cylinder output shaft; a front handle is fixedly connected to the front sleeve and a rear handle is fixedly installed on the rear sleeve.
[0006] A limit switch is installed on the bottom surface of the transfer bucket, and a limit alarm light is installed on the horizontal crossbeam. The limit switch and the limit alarm light are electrically connected together. The crossbeam of the vehicle body frame is a rectangular sleeve. A telescopic sleeve is installed in the rectangular sleeve. Bolt through holes are set at intervals on the telescopic sleeve. Bolt through holes are also set at intervals on the rectangular sleeve. A positioning bolt is inserted into the corresponding two bolt through holes.
[0007] When equipment needs to be transferred, this utility model is moved near the equipment to be transferred. The output shaft of the hydraulic cylinder is extended and retracted by controlling the lifting foot switch. The extension and retraction shaft of the hydraulic cylinder drives the horizontal crossbeam to rise or fall. The horizontal crossbeam then drives the two sleeves to rise or fall along the front and rear columns of the portal frame. After the two sleeves drive the transfer bucket to the required position, the equipment to be transferred is moved into the transfer bucket by opening the openable door. Then, the openable door is closed, and the trolley is pushed to transfer the equipment. This utility model can adjust the position of the retractable sleeve in the crossbeam of the chassis frame according to the weight of the equipment to be transferred, making the trolley more stable. During the lifting and lowering of the transfer bucket, when the contact switch touches the ground, the limit indicator light will be activated to provide a warning. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model in the right rear direction; Figure 3 This is a longitudinal sectional view of the present invention. Detailed Implementation
[0009] The present invention will now be described in detail with reference to the accompanying drawings: A universal transfer trolley for substation electrical equipment includes two parallel chassis beams 1. Lockable omnidirectional wheels 2 are installed at the lower ends of both ends of the chassis beams 1, supporting the trolley and enabling its movement. A gantry frame connecting base 3 is fixedly installed at the center of the top surface of the chassis beams 1, and a portal-shaped gantry frame 4 is connected to the gantry frame connecting base 3. The gantry frame connecting base 3 and the portal-shaped gantry frame 4 can be designed as a plug-in type, allowing for the replacement of gantry frames of different heights. A counterweight longitudinal beam 5 connects the two chassis beams 1, balancing the weight of the equipment in the transfer bucket 11. A hydraulic cylinder 6 is installed on the top surface of the counterweight longitudinal beam 5. A front sleeve is installed on the front upright of the portal-shaped gantry frame 4. The cylinder 7 has a rear sleeve 8 installed on the rear column of the portal gantry 4. A horizontal crossbeam 13 is fixedly connected between the upper part of the front sleeve 7 and the upper part of the rear sleeve 8. The upward extension shaft of the hydraulic cylinder 6 is fixedly connected to the middle of the horizontal crossbeam 13. A cantilevered transfer bucket front connecting seat 9 is fixedly connected to the front sleeve 7, and a cantilevered transfer bucket rear connecting seat 10 is fixedly connected to the rear sleeve 8. A transfer bucket 11 is connected between the cantilevered transfer bucket front connecting seat 9 and the cantilevered transfer bucket rear connecting seat 10. An openable door 12 is provided at the outer end of the transfer bucket 11. The front sleeve 7, rear sleeve 8, cantilevered transfer bucket front connecting seat 9, cantilevered transfer bucket rear connecting seat 10 and transfer bucket 11 form a whole and move up and down along the two columns of the portal gantry. The vehicle frame is stabilized by the counterweight longitudinal beam 5.
[0010] On the top surface of the counterweight longitudinal beams 5 on both sides of the hydraulic cylinder 6, there are lifting pedals 14 for controlling the lifting of the hydraulic cylinder output shaft and lowering pedals 15 for controlling the lowering of the hydraulic cylinder output shaft; a front handle 16 is fixedly connected to the front sleeve 7 and a rear handle 17 is fixedly installed on the rear sleeve 8, and the vehicle body can be moved by pushing the two handles.
[0011] A limit switch 18 is installed on the lower surface of the transfer bucket 11, and a limit alarm light 19 is installed on the horizontal crossbeam 13. The limit switch 18 and the limit alarm light 19 are electrically connected together. The chassis crossbeam 1 is a rectangular sleeve, and a telescopic sleeve 20 is installed in the rectangular sleeve. Bolt through holes 21 are arranged at intervals on the telescopic sleeve 20, and bolt through holes are also arranged at intervals on the rectangular sleeve. A positioning bolt 22 is inserted into the corresponding two bolt through holes. When the positioning bolt 22 is removed, the telescopic sleeve 20 can extend and retract in the rectangular sleeve of the chassis crossbeam 1.
Claims
1. A universal transfer trolley for substation electrical equipment, comprising two parallel chassis beams (1), with lockable omnidirectional wheels (2) at the lower ends of both ends of the chassis beams (1), a gantry frame connecting base (3) fixedly installed at the center of the top surface of the chassis beams (1), and a portal-shaped gantry frame (4) connected to the gantry frame connecting base (3), characterized in that, A counterweight longitudinal beam (5) is connected between the two vehicle body underframe crossbeams (1), and a hydraulic cylinder (6) is provided on the top surface of the counterweight longitudinal beam (5); a front sleeve (7) is provided on the front column of the portal gantry (4), and a rear sleeve (8) is provided on the rear column of the portal gantry (4); a horizontal crossbeam (13) is fixedly connected between the upper part of the front sleeve (7) and the upper part of the rear sleeve (8); the upward extension shaft of the hydraulic cylinder (6) is fixedly connected to the middle part of the horizontal crossbeam (13); a cantilever transfer bucket front connecting seat (9) is fixedly connected on the front sleeve (7), a cantilever transfer bucket rear connecting seat (10) is fixedly connected on the rear sleeve (8), a transfer bucket (11) is connected between the cantilever transfer bucket front connecting seat (9) and the cantilever transfer bucket rear connecting seat (10), and an openable door (12) is provided on the outer end of the transfer bucket (11).
2. The universal transfer trolley for substation electrical equipment according to claim 1, characterized in that, On the top surface of the counterweight longitudinal beam (5) on both sides of the hydraulic cylinder (6), there are a lifting pedal (14) for controlling the lifting of the hydraulic cylinder output shaft and a lowering pedal (15) for controlling the lowering of the hydraulic cylinder output shaft; a front handle (16) is fixedly connected to the front sleeve (7), and a rear handle (17) is fixedly installed on the rear sleeve (8).
3. A universal transfer trolley for substation electrical equipment according to claim 1 or 2, characterized in that, A limit switch (18) is installed on the bottom surface of the transfer bucket (11), and a limit alarm light (19) is installed on the horizontal crossbeam (13). The limit switch (18) and the limit alarm light (19) are electrically connected together. The crossbeam (1) of the vehicle body frame is a rectangular sleeve. A telescopic sleeve (20) is installed in the rectangular sleeve. Bolt through holes (21) are provided at intervals on the telescopic sleeve (20). Bolt through holes are also provided at intervals on the rectangular sleeve. A positioning bolt (22) is inserted into the corresponding two bolt through holes.