Lifting type circuit breaker transfer trolley capable of being quickly disassembled and assembled and adjusted in multiple directions

Abstract

The invention relates to a lifting type circuit breaker transfer trolley capable of being rapidly disassembled and assembled and adjusted in multiple directions, and belongs to the technical field of circuit breaker transfer trolleys. A control system with a control terminal as a core is introduced on the basis of a basic structure of the transfer trolley, and the control terminal presets a target butt joint height, an allowable left-right height difference threshold value and an allowable dip angle threshold value; the state detection module detects the left-right height of a tray, the inclination angle of the tray and the braking in-place state, and the control terminal sends instructions to the lifting execution module and the interlocking prompt module according to detection signals and a preset threshold value. The lifting is allowed after the braking is in place, the lifting is stopped or prompted after the target height is reached, the leveling is prompted and the push-in or pull-out is limited when the posture exceeds the limit, and the problems that the butt joint height and posture of the tray of the circuit breaker transfer trolley are difficult to be stable and consistent and the braking state is lack of reliable constraint are solved. And interference, slippage and poor butt joint consistency are easy to occur in the push-in or pull-out process.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of circuit breaker transfer trolley, and particularly relates to a lifting type circuit breaker transfer trolley capable of being quickly disassembled and adjusted in multiple directions. BACKGROUND

[0002] In the metal-enclosed switchgear of a substation and a distribution room, the draw-out circuit breaker usually needs to be pushed in or pulled out from the ground to the height of the guide rail in the cabinet during maintenance, replacement and storage, and the existing circuit breaker transfer trolley generally comprises a frame, traveling wheels, a tray and a lifting mechanism. The lifting mechanism can be realized by structures such as a lead screw, a scissor, a chain or a steel wire rope to adjust the height. In order to adapt to different cabinet types and channel conditions, some schemes improve the carrying and use convenience by adjusting the tray guide structure, detachable handle or detachable parts.

[0003] In actual application, the circuit breaker transfer trolley often works in a narrow channel, a door opening and a space environment with limited turning radius in a substation or a distribution room. At the same time, there are discontinuous features such as slope, local unevenness, drainage ditch cover plate or terrace joint on the ground, and there are small differences in the foundation height difference, cabinet body level deviation and guide rail height of the switch cabinet installation. When the transfer trolley carries a large mass circuit breaker and needs to be accurately connected with the guide rail in the cabinet, the above interference factors will cause the tray to have a lateral roll or pitch angle deviation and a left-right height difference relative to the cabinet body. If reliable identification and interlocking constraint of the key states such as the tray posture, connection height and braking state are lacking, the site usually can only rely on visual observation and experience adjustment, and then the edge interference between the circuit breaker roller and the guide rail, the rising operation resistance, the sliding trend of the vehicle under the action of the pushing and pulling force, the decrease of the stable margin caused by the projection deviation of the tray carrying center of gravity and other chain risks occur in the pushing in or pulling out process, which makes the connection process highly sensitive to the ground conditions and the proficiency of personnel, and it is difficult to maintain consistent connection reliability and safety under different site and cabinet type conditions. SUMMARY

[0004] To solve the above problems in the prior art, the present application provides a lifting type circuit breaker transfer trolley capable of being quickly disassembled and adjusted in multiple directions, which solves the problems that the connection height and posture of the circuit breaker transfer trolley tray are difficult to be stable and consistent and the braking state lacks reliable constraint in the prior art under the working conditions that the site channel is limited, the ground is uneven and there is a small difference in the cabinet guide rail height in a substation or a distribution room.

[0005] The object of the present application can be achieved by the following technical solutions: The application discloses a lifting type circuit breaker transfer vehicle which can be quickly disassembled and adjusted in multiple directions, comprising a vehicle frame, walking wheels arranged at the lower part of the vehicle frame, leg mounting seats arranged at the four corners of the vehicle frame, and legs which are detachably connected with the leg mounting seats through quick disassembly connectors, a lifting bearing frame arranged on the vehicle frame, a lifting mechanism which connects the vehicle frame and the lifting bearing frame and drives the lifting bearing frame to lift, a circuit breaker tray arranged on the lifting bearing frame, independent leveling mechanisms arranged at the left and right sides of the tray and connected with the corresponding sides of the lifting bearing frame and the tray respectively, and a braking assembly arranged at the lower front part of the vehicle frame; the application further comprises a control system, the control system comprising a control terminal, a lifting execution module and an interlocking prompting module which are connected with the control terminal, and a state detection module connected with the control terminal, the state detection module comprising a left height detection unit, a right height detection unit, an inclination detection unit and a braking state detection unit, the control terminal being provided with preset target butt joint height parameters, allowed left-right height difference threshold parameters and allowed inclination threshold parameters, the control terminal sending instructions to the lifting execution module and the interlocking prompting module according to detection signals, so that the lifting execution module drives lifting when the braking is in place and stops or prompts when the target height is reached, and the interlocking prompting module prompts leveling when the left-right height difference or the inclination exceeds the limit and restricts pushing in or pulling out.

[0006] As a further scheme of the application, the control terminal is further provided with cabinet type selection parameters and at least two groups of butt joint parameters, and the control terminal calls corresponding target butt joint height parameters, allowed left-right height difference threshold parameters and allowed inclination threshold parameters according to the cabinet type selection parameters.

[0007] As a further scheme of the application, the control terminal is further provided with lifting start node parameters and lifting stop node parameters, the control terminal sends instructions to the lifting execution module according to the detection signals of the braking state detection unit and the lifting start node parameters, so that the lifting execution module drives the lifting mechanism to start lifting, and the control terminal sends instructions to the lifting execution module according to the detection signals of the left height detection unit and the right height detection unit and the lifting stop node parameters, so that the lifting execution module stops driving the lifting mechanism.

[0008] As a further scheme of the application, the control terminal is further provided with left-right height difference early warning threshold parameters and left-right height difference interlocking threshold parameters, the control terminal sends instructions to the interlocking prompting module according to the detection signals of the left height detection unit and the right height detection unit, so that the interlocking prompting module outputs a leveling prompt when the left-right height difference exceeds the left-right height difference early warning threshold parameters and outputs an interlocking of prohibition of pushing in or pulling out when the left-right height difference exceeds the left-right height difference interlocking threshold parameters.

[0009] As a further scheme of the present application, the control terminal further has preset therein a tilt angle early warning threshold parameter and a tilt angle interlocking threshold parameter, and the control terminal sends an instruction to the interlocking prompting module according to the detection signal of the tilt angle detection unit, so that the interlocking prompting module outputs a leveling prompt when the tilt angle exceeds the tilt angle early warning threshold parameter, and outputs a push-in or pull-out interlocking prohibition prompt when the tilt angle exceeds the tilt angle interlocking threshold parameter.

[0010] As a further scheme of the present application, the brake assembly comprises an adsorption type ground brake mechanism and a wheel brake mechanism, the brake state detection unit comprises a ground brake in-place detector and a wheel brake in-place detector, and the control terminal further has preset therein a double brake confirmation parameter, and the control terminal sends an instruction to the interlocking prompting module according to the detection signals of the ground brake in-place detector and the wheel brake in-place detector and the double brake confirmation parameter, so that the interlocking prompting module outputs a lifting prohibition prompt and a push-in or pull-out interlocking prohibition prompt when the double brake confirmation is not satisfied.

[0011] As a further scheme of the present application, the state detection module further comprises a docking distance detection unit, the control terminal further has preset therein a docking permission distance parameter, and the control terminal sends an instruction to the interlocking prompting module according to the detection signal of the docking distance detection unit and the docking permission distance parameter, so that the interlocking prompting module outputs a push-in or pull-out permission prompt when the docking distance satisfies the docking permission distance parameter and the left-right height difference and the tilt angle are both within the limit, and outputs a push-in or pull-out interlocking prohibition prompt when the conditions are not satisfied.

[0012] As a further scheme of the present application, the lifting bearing frame is provided with a mechanical locking mechanism, the state detection module further comprises a locking state detection unit, the control terminal further has preset therein a locking start node parameter, and the control terminal sends an instruction to the interlocking prompting module according to the detection signals of the left height detection unit and the right height detection unit and the locking start node parameter, so that the interlocking prompting module outputs a locking prompt, and outputs a push-in or pull-out interlocking prohibition prompt when the locking state detection unit detects that the locking is not in place.

[0013] As a further scheme of the present application, the state detection module further comprises an upper stroke limit position detection unit and a lower stroke limit position detection unit, the control terminal further has preset therein a stroke protection parameter, and the control terminal sends an instruction to the lifting execution module according to the detection signal of the upper stroke limit position detection unit or the lower stroke limit position detection unit and the stroke protection parameter, so that the lifting execution module stops driving the lifting mechanism.

[0014] As a further scheme of the present application, the state detection module further comprises a load detection unit, the control terminal further has preset therein an overload threshold parameter, and the control terminal sends an instruction to the lifting execution module and the interlocking prompting module according to the detection signal of the load detection unit and the overload threshold parameter, so that the lifting execution module stops driving the lifting mechanism and the interlocking prompting module outputs an overload prompt.

[0015] The beneficial effects of the present application are: The present application introduces a control system with a control terminal as the core on the basis structure of the transfer trolley, and converts the field interference factors into detectable, comparable and constrained control quantities. The control terminal presets the target docking height, the allowable left-right height difference threshold and the allowable inclination threshold. The state detection module detects the left-right height of the tray, the inclination of the tray and the braking position. The control terminal sends instructions to the lifting execution module and the interlocking prompt module according to the detection signals and the preset threshold. After the braking is in place, the lifting is allowed. After the target height is reached, the lifting is stopped or prompted. When the attitude exceeds the limit, the leveling is prompted and the pushing or pulling is limited. The advantages of the design are: the docking process depending on visual experience is changed into a parameterized, stateful and interlocked operation process. The fluctuations caused by different ground conditions and different personnel operations are reduced. The pushing and pulling interference and the vehicle sliding risk are reduced. The stability and consistency of the circuit breaker and the switch cabinet rail docking are improved. The structural adaptation ability such as fast disassembly and leveling is still maintained. The problems that the circuit breaker tray docking height and attitude are difficult to be stable and consistent and the braking state lacks reliable constraints in the existing technology under the working conditions that the field passage of the substation or distribution room is limited, the ground is uneven and the cabinet rail height has a small difference are solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to facilitate the understanding of those skilled in the art, the present application will be further described below with reference to the accompanying drawings.

[0017] Fig. 1 The present application is a schematic diagram of the overall structure. Fig. 2 The present application is a schematic diagram of the braking assembly structure.

[0018] Main element symbol explanation: In the figure: 1, frame; 2, walking wheel; 3, leg mounting seat; 4, lifting carrier; 5, circuit breaker tray; 6, adsorbed ground brake mechanism; 7, wheel brake mechanism. DETAILED DESCRIPTION

[0019] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined invention purpose, the specific implementation, structure, features and effects according to the present application are described in detail as follows in combination with the drawings and preferred embodiments.

[0020] Please refer to Figs. 1-2As shown, the embodiment provides a lifting type circuit breaker transfer vehicle which can be quickly disassembled and adjusted in multiple directions, comprising a vehicle frame 1, a walking wheel 2 arranged at the lower part of the vehicle frame 1, a vehicle leg mounting seat 3 arranged at the four corners of the vehicle frame 1, and a fast disassembly connecting piece for detachable connection between the vehicle leg and the vehicle leg mounting seat 3, a lifting bearing frame 4 arranged on the vehicle frame 1, a lifting mechanism for connecting the vehicle frame 1 and the lifting bearing frame 4 and driving the lifting thereof, a circuit breaker tray 5 arranged on the lifting bearing frame 4, independent leveling mechanisms arranged on the left and right sides of the tray and connected with the corresponding sides of the lifting bearing frame 4 and the tray respectively, and a brake assembly arranged at the lower front of the vehicle frame 1; further comprising a control system, the control system comprising a control terminal, a lifting execution module and an interlocking prompting module connected with the control terminal, and a state detection module connected with the control terminal, the state detection module comprising a left height detection unit, a right height detection unit, an inclination detection unit and a brake state detection unit, the control terminal being preset with a target butt joint height parameter, an allowable left-right height difference threshold parameter and an allowable inclination threshold parameter, the control terminal sending instructions to the lifting execution module and the interlocking prompting module according to the detection signals, so that the lifting execution module drives the lifting when the brake is in place and stops or prompts when the target height is reached, and the interlocking prompting module prompts leveling when the left-right height difference or the inclination exceeds the limit and restricts the pushing in or pulling out.

[0021] In order to solve the problem that in the prior art, under the working condition that the site passage of the transformer substation or distribution room is limited, the ground is uneven, and the height of the cabinet guide rail has a slight difference, the butt joint height and attitude of the circuit breaker transfer vehicle tray are difficult to be stable and consistent, and the brake state lacks reliable constraint, resulting in that the pushing in or pulling out process is prone to interference, slipping and poor consistency of butt joint, in the embodiment, a control system with a control terminal as the core is introduced on the basis structure of the transfer vehicle, and the field interference factors are converted into detectable, comparable and constrained control quantities, the control terminal is preset with a target butt joint height, an allowable left-right height difference threshold and an allowable inclination threshold, a state detection module detects the left-right height of the tray, the inclination of the tray and the brake in place state respectively, the control terminal sends instructions to the lifting execution module and the interlocking prompting module according to the detection signals and the preset threshold, so as to allow lifting after the brake is in place, stop or prompt when the target height is reached, and prompt leveling and restrict pushing in or pulling out when the attitude exceeds the limit. The advantage of the design is that the butt joint process depending on visual experience is changed into a parameterized, stateful and interlocked operation process, the fluctuations caused by different ground conditions and different personnel operations are reduced, the pushing and pulling interference and vehicle slipping risk are reduced, the stability and consistency of the circuit breaker and switch cabinet guide rail butt joint are improved, and the structure adaptation ability such as fast disassembly and leveling is still maintained.

[0022] It is worth mentioning that in an embodiment, the lifting mechanism preferably adopts a ball screw driven lifting module to replace the flexible transmission or suspension structure such as steel wire rope or cable, which can include a ball screw, a ball nut pair cooperating with the ball screw, a support assembly for axial or radial support positioning of the ball screw, such as a bearing seat, and a driving member (which can be a manually operated handle or an electrically operated handle) connected to the ball screw or the ball nut pair, wherein the ball screw is fixedly or rotatably installed between the vehicle frame 1 and the lifting carrier 4, so that when the driving member drives the ball screw to rotate relative to the ball nut pair, the ball circulates and rolls in the raceway of the screw and the nut, converting the rotary motion into linear displacement of the lifting carrier 4. Due to the replacement of sliding friction with rolling friction, the transmission efficiency is high, the lifting process is stable, the displacement control precision is high, the load can be shared by multiple balls, the stress is more uniform, the rigidity is better, which is conducive to maintaining the stability of the tray lifting when carrying a large mass circuit breaker and facilitating the accurate adjustment of the docking height. At the same time, compared with the structure commonly using cable transmission, the present embodiment avoids the safety risk of sudden failure of the load due to cable fatigue wear and breakage, and can cooperate with the brake assembly to realize reliable height retention and secondary anti-falling safety protection after lifting to position.

[0023] In the application scenario of adapting multiple cabinet types to the same transfer trolley, the guide rail height, docking height and allowed attitude deviation range of different switch cabinets are different, manual switching and setting requires repeated parameter input, and parameter selection error and setting omission leads to decreased docking consistency, mismatched leveling prompt and interlocking threshold. In order to avoid these problems, in an embodiment, the control terminal is also pre-set with cabinet type selection parameters and at least two sets of docking parameters, the control terminal calls the corresponding target docking height parameter, left-right height difference threshold parameter and inclination threshold parameter according to the cabinet type selection parameters, and by pre-setting the cabinet type selection parameters and at least two sets of docking parameters in the control terminal, the control terminal directly calls the corresponding target docking height and threshold parameters according to the cabinet type selection; this design fixes the cabinet type difference as a selectable parameter set, avoids repeated input, reduces human setting errors, and enables the same device to maintain consistent height positioning judgment and attitude interlocking boundary when switching between different cabinet types, improving the efficiency and stability of on-site adaptation. The left and right sides of the circuit breaker tray 5 are provided with independent leveling mechanisms, which are screw nut leveling mechanisms. The screw rod of the leveling mechanism is rotatably connected to the lifting carrier 4, and the nut is connected to the corresponding side of the circuit breaker tray 5. The height of the tray on one side is adjusted by driving the screw rod to rotate. The lifting mechanism is at least one set of scissor type lifting arm or screw lifting module, the lower end of which is connected to the vehicle frame 1, and the upper end is connected to the lifting carrier 4. The lifting carrier 4 is driven to lift by driving the scissor arm to open and close or the screw to rotate.

[0024] Since the start and stop of the lifting action are inconsistent in the field operation, and the brake confirmation and the lifting start and stop lack unified node constraints, the lifting start and stop timing fluctuation will amplify the docking height error, and the inconsistent stop action when the docking height approaches the target position will increase the number of repeated fine adjustments. To this end, in an embodiment, the control terminal further presets a lifting start node parameter and a lifting stop node parameter, the control terminal sends an instruction to the lifting execution module according to the detection signal of the brake state detection unit and the lifting start node parameter, so that the lifting execution module drives the lifting mechanism to start lifting, the control terminal sends an instruction to the lifting execution module according to the detection signals of the left height detection unit and the right height detection unit and the lifting stop node parameter, so that the lifting execution module stops driving the lifting mechanism, the lifting start node parameter and the lifting stop node parameter are preset in the control terminal, the brake state detection signal is used as the start condition, and the left and right height detection signals are used as the stop criterion, and the control terminal sends start and stop instructions to the lifting execution module accordingly; this design converts the lifting action from sensory start and stop to node parameter constrained start and stop, so that the lifting starts after the safe brake confirmation, and stops uniformly when the height meets the stop node requirement, reducing the height overshoot and frequent recall, and improving the consistency and operation efficiency of the docking height control.

[0025] In addition, since the left and right height difference caused by the uneven ground, local slope and slight difference of the cabinet body foundation has the progressive characteristic, single threshold control is prone to insufficient prompt or excessive restriction, and cannot balance the early correction and safety constraint of serious deviation, in an embodiment, the control terminal further presets a left and right height difference warning threshold parameter and a left and right height difference interlocking threshold parameter, the control terminal sends an instruction to the interlocking prompt module according to the detection signals of the left height detection unit and the right height detection unit, so that the interlocking prompt module outputs the leveling prompt when the left and right height difference exceeds the left and right height difference warning threshold parameter, and outputs the prohibition of pushing in or pulling out interlocking when the left and right height difference exceeds the left and right height difference interlocking threshold parameter, by presetting the left and right height difference warning threshold parameter and the left and right height difference interlocking threshold parameter in the control terminal, the control terminal triggers the leveling prompt and the prohibition of pushing in or pulling out interlocking according to the left and right height detection signals, this design adopts the engineering processing method of grading warning and interlocking, timely prompts leveling in the slight deviation stage, and forcibly limits pushing and pulling in the serious deviation stage, which improves the timeliness of correction, prevents interference and impact caused by hard pushing and hard pulling when the deviation is too large, improves the docking safety margin and field operability.

[0026] Further, the tray pitch angle and roll angle are affected by the ground slope, tray load distribution and docking push-pull force, and the attitude deviation also has a gradual characteristic, and it is difficult to achieve timely correction and strict protection at the same time when there is no hierarchical boundary, in an embodiment, the control terminal also has preset inclination warning threshold parameters and inclination interlocking threshold parameters, the control terminal sends instructions to the interlocking prompt module according to the detection signal of the inclination detection unit, so that the interlocking prompt module outputs the leveling prompt when the inclination exceeds the inclination warning threshold parameter, and outputs the push-in or pull-out interlocking inhibition when the inclination exceeds the inclination interlocking threshold parameter, the inclination warning threshold parameter and the inclination interlocking threshold parameter are preset in the control terminal, and the control terminal outputs the leveling prompt according to the inclination detection signal, and then outputs the push-in or pull-out interlocking inhibition when the inclination exceeds the interlocking threshold; This design expands the attitude control from single-point judgment to hierarchical strategy, so that the operator gets clear prompt when the deviation is still adjustable, and the push-pull is automatically limited when the deviation reaches the risk interval, reducing the stability risk caused by the edge interference of the roller guide and the deviation of the center of gravity.

[0027] Further, due to the existence of a large horizontal thrust during the push-in or pull-out process, the stability of a single braking form fluctuates under different ground materials, ground cleanliness and stress direction changes, and when there is a lack of double confirmation of the braking execution state, the vehicle slip trend is difficult to be timely constrained, in an embodiment, the braking assembly includes an adsorptive ground brake mechanism 6 and a wheel brake mechanism 7, the braking state detection unit includes a ground brake in-place detector and a wheel brake in-place detector, and the control terminal also has a double braking confirmation parameter preset therein, the control terminal sends instructions to the interlocking prompt module according to the detection signals of the ground brake in-place detector and the wheel brake in-place detector and the double braking confirmation parameter, so that the interlocking prompt module outputs the lifting inhibition and the push-in or pull-out interlocking inhibition when the double braking confirmation is not satisfied, here, the braking assembly is limited to the adsorptive ground brake mechanism 6 and the wheel brake mechanism 7, and the ground brake in-place detector and the wheel brake in-place detector are provided, the double braking confirmation parameter is preset in the control terminal and the lifting inhibition and the push-in or pull-out interlocking inhibition are outputted according to the double braking confirmation parameter, this design forms a double braking and in-place determination safety chain with structural redundancy and state confirmation, significantly reduces the vehicle slip and docking instability risk during push-pull, and improves the stability and controllability of the push-in or pull-out process.

[0028] In addition, in the docking process, in addition to the height and attitude, it is also affected by the relative distance between the transfer car and the front end of the cabinet. When the distance deviates from the appropriate range, pushing or pulling out will introduce impact, unbalanced load and guide rail centering deviation, increase the probability of roller edge interference and amplify the pushing and pulling resistance. Therefore, in an embodiment, the state detection module further includes a docking distance detection unit, and the control terminal further pre-stores a docking allowable distance parameter. The control terminal sends an instruction to the interlocking prompt module according to the detection signal of the docking distance detection unit and the docking allowable distance parameter, so that the interlocking prompt module outputs a pushing or pulling permission prompt when the docking distance meets the docking allowable distance parameter and the left-right height difference and the inclination angle are not out of limit, and outputs a pushing or pulling interlocking prohibition when it does not meet. By increasing the docking distance detection unit and pre-storing the docking allowable distance parameter in the control terminal, the control terminal outputs a pushing or pulling permission prompt when the docking distance meets the allowable range and the left-right height difference and the inclination angle are not out of limit, and outputs a pushing or pulling interlocking prohibition when it does not meet. This design includes the docking distance in the permission condition, so that the pushing and pulling action is based on the comprehensive satisfaction of distance, attitude and height, reduces the docking hard collision, unbalanced pushing and pulling and guide rail jamming, and improves the stability and repeatability of the docking action.

[0029] In addition, when the tray is lifted to the docking height, the transmission gap of the lifting mechanism, external pushing and pulling disturbance and long-term use wear will cause the height retention reliability to fluctuate. If the locking is not in place, the pushing or pulling will directly enter, which will amplify the falling and impact risk. In an embodiment, the lifting carrier 4 is provided with a mechanical locking mechanism, and the state detection module further includes a locking state detection unit. The control terminal further pre-stores a locking start node parameter. The control terminal sends an instruction to the interlocking prompt module according to the detection signals of the left height detection unit and the right height detection unit and the locking start node parameter, so that the interlocking prompt module outputs a locking prompt, and outputs a pushing or pulling interlocking prohibition when the locking state detection unit detects that the locking is not in place. By setting a mechanical locking mechanism on the lifting carrier 4, and realizing the locking in-place state recognition through the locking state detection unit, and pre-storing the locking start node parameter in the control terminal, the control terminal outputs a locking prompt when the height meets the node condition, and outputs a pushing or pulling interlocking prohibition when the locking is not in place. This design forms a process constraint of in-place prompt, locking confirmation and then pushing and pulling, improves the reliability of the docking height retention, and reduces the height sinking and circuit breaker falling risk caused by pushing and pulling disturbance.

[0030] It should be noted that in the field operation, there will also be lifting stroke misoperation and limit position misjudgment phenomenon, and lifting beyond the mechanism stroke boundary will cause mechanical interference, abnormal stress of transmission member and structure damage, further affecting the docking accuracy and service life, for this, in an embodiment, the state detection module further comprises an upper stroke limit position detection unit and a lower stroke limit position detection unit, and the control terminal is also pre-set with stroke protection parameters, the control terminal sends instructions to the lifting execution module according to the detection signals of the upper stroke limit position detection unit or the lower stroke limit position detection unit and the stroke protection parameters, so that the lifting execution module stops driving the lifting mechanism, by adding the upper stroke limit position detection unit and the lower stroke limit position detection unit, and pre-setting the stroke protection parameters in the control terminal, the control terminal sends stop driving instructions to the lifting execution module according to the limit position detection signal; the design realizes overstroke protection through hard boundary detection and stop control, reduces the structure impact and transmission damage caused by misoperation, and ensures the long-term stability of the lifting mechanism and the docking accuracy maintaining ability.

[0031] According to the above embodiment, the weight difference of different types of circuit breakers and the load change caused by loading additional equipment will cause the bearing boundary of the lifting mechanism to fluctuate, and the continuous lifting under overload working condition will easily cause the damage of the transmission member and the decrease of stability, and further amplify the docking risk, in an embodiment, the state detection module further comprises a load detection unit, and the control terminal is also pre-set with an overload threshold parameter, the control terminal sends instructions to the lifting execution module and the interlocking prompt module according to the detection signal of the load detection unit and the overload threshold parameter, so that the lifting execution module stops driving the lifting mechanism and the interlocking prompt module outputs the overload prompt, the load detection unit is added and the overload threshold parameter is pre-set in the control terminal, the control terminal sends stop instructions to the lifting execution module and outputs the overload prompt to the interlocking prompt module according to the load detection signal; the design establishes the visualization and constraint mechanism of the bearing boundary by the load threshold, avoids the damage of the mechanism and instability caused by continuous lifting under overload state, improves the equipment safety and service life, and improves the universal reliability under different circuit breaker configurations.

[0032] The working principle and use process of the present application are as follows: Through the control system taking the control terminal as the core, the height, attitude, braking state and other key factors in the field docking process are converted into detectable and controllable parameters. The control terminal is pre-set with target docking height, allowable left-right height difference threshold and allowable inclination threshold, etc. The state detection module detects the left and right height, inclination and braking position in real time. The control terminal sends instructions to the lifting execution module and the interlocking prompt module according to the detection signal and the pre-set threshold, realizes automatic lifting after braking, automatic stopping or prompting after reaching the target height, and prompts leveling and limits pushing in or pulling out when the attitude is out of limit, so as to convert the experience-dependent docking process into parameterized, interlocked and standardized process.

[0033] The operator pushes the transfer trolley to the front of the switch cabinet, starts the control system, the brake state detection unit confirms that the brake is in place, and the lifting execution module automatically drives the tray to lift to the preset target height; at the same time, the system monitors the height difference and inclination of the tray in real time, and if it exceeds the early warning threshold, it will prompt to level, and if it exceeds the interlocking threshold, it will prohibit the push-in or pull-out operation; after all the conditions meet the preset conditions, the system outputs the push-in or pull-out permission prompt, and the operator can safely dock the circuit breaker and the guide rail in the cabinet. Through state detection and interlocking control, the consistency and safety of the docking are significantly improved.

[0034] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any modification, equivalent change and modification of the above embodiment made according to the technical essence of the present application are still within the scope of the present application.

Claims

1. A lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment, characterized in that, The vehicle includes a frame and a lifting mechanism. The frame has wheels at the bottom and leg mounting seats at the four corners. The legs are detachably connected to the leg mounting seats via quick-release connectors. The frame has a lifting support frame. The lifting mechanism connects the frame and the lifting support frame and drives them to rise and fall. The lifting support frame has a circuit breaker tray. The left and right sides of the circuit breaker tray have independent leveling mechanisms that connect the lifting support frame and the corresponding sides of the circuit breaker tray, respectively. A braking assembly is located at the lower front of the frame. It also includes a control system, which comprises a control terminal, a lifting execution module and an interlocking prompt module connected to the control terminal, and a status detection module connected to the control terminal. The status detection module includes a left height detection unit, a right height detection unit, a tilt angle detection unit, and a braking status detection unit. The control terminal presets target docking height parameters, allowable left and right height difference threshold parameters, and allowable tilt angle threshold parameters. The control terminal sends instructions to the lifting execution module and the interlocking prompt module based on the detection signals, so that the lifting execution module drives the lifting when the braking is in place and stops or prompts when the target height is reached, and the interlocking prompt module prompts leveling and restricts pushing in or pulling out when the left and right height difference or tilt angle exceeds the limit.

2. The lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The control terminal is also preset with cabinet type selection parameters and at least two sets of docking parameters. The control terminal calls the corresponding target docking height parameters, allowable left and right height difference threshold parameters, and allowable tilt angle threshold parameters according to the cabinet type selection parameters.

3. The lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The control terminal is also pre-set with lifting start node parameters and lifting stop node parameters. The control terminal sends an instruction to the lifting execution module based on the detection signal of the braking state detection unit and the lifting start node parameters, so that the lifting execution module drives the lifting mechanism to start lifting. The control terminal sends an instruction to the lifting execution module based on the detection signals of the left height detection unit and the right height detection unit and the lifting stop node parameters, so that the lifting execution module stops driving the lifting mechanism.

4. The lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The control terminal is also preset with left and right height difference warning threshold parameters and left and right height difference interlocking threshold parameters. The control terminal sends instructions to the interlocking prompt module according to the detection signals of the left height detection unit and the right height detection unit, so that the interlocking prompt module outputs a leveling prompt when the left and right height difference exceeds the left and right height difference warning threshold parameters, and outputs a prohibition on pushing in or pulling out the interlock when the left and right height difference exceeds the left and right height difference interlocking threshold parameters.

5. The lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The control terminal is also preset with tilt angle warning threshold parameters and tilt angle interlocking threshold parameters. The control terminal sends instructions to the interlocking prompt module according to the detection signal of the tilt angle detection unit, so that the interlocking prompt module outputs a leveling prompt when the tilt angle exceeds the tilt angle warning threshold parameter, and outputs a prohibition on pushing in or pulling out the interlock when the tilt angle exceeds the tilt angle interlocking threshold parameter.

6. The lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The braking assembly includes an adsorption-type ground brake mechanism and a wheel brake mechanism. The braking status detection unit includes a ground brake position detector and a wheel brake position detector. The control terminal is also preset with dual brake confirmation parameters. The control terminal sends a command to the interlocking prompt module based on the detection signals from the ground brake position detector and the wheel brake position detector and the dual brake confirmation parameters. This causes the interlocking prompt module to output a prohibition on lifting and lowering and a prohibition on pushing in or pulling out the interlock when the dual brake confirmation is not satisfied.

7. A lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The status detection module also includes a docking distance detection unit. The control terminal is also preset with a docking permission distance parameter. The control terminal sends an instruction to the interlocking prompt module according to the detection signal of the docking distance detection unit and the docking permission distance parameter. When the docking distance meets the docking permission distance parameter and the left and right height difference and tilt angle do not exceed the limit, the interlocking prompt module outputs a push-in or pull-out permission prompt. When the conditions are not met, it outputs a prohibition on pushing in or pulling out the interlock.

8. A lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The lifting support frame is equipped with a mechanical locking mechanism. The status detection module also includes a locking status detection unit. The control terminal is also preset with locking start node parameters. The control terminal sends an instruction to the interlocking prompt module according to the detection signals of the left height detection unit and the right height detection unit and the locking start node parameters, so that the interlocking prompt module outputs a locking prompt. When the locking status detection unit detects that the locking is not in place, it outputs that the interlock should not be pushed in or pulled out.

9. A lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The status detection module also includes an upper limit travel detection unit and a lower limit travel detection unit. The control terminal is also preset with travel protection parameters. The control terminal sends a command to the lifting execution module according to the detection signal of the upper limit travel detection unit or the lower limit travel detection unit and the travel protection parameters, so that the lifting execution module stops driving the lifting mechanism.

10. A lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The status detection module also includes a load detection unit. The control terminal is also preset with an overload threshold parameter. The control terminal sends instructions to the lifting execution module and the interlocking prompt module according to the detection signal of the load detection unit and the overload threshold parameter, so that the lifting execution module stops driving the lifting mechanism and the interlocking prompt module outputs an overload prompt.

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