Mobile lifting platform for heavy equipment in transformer substation

Abstract

The invention discloses a transformer substation heavy equipment moving and lifting platform which comprises a lifting platform body, a transverse moving platform, a base and a control device which are sequentially connected from top to bottom. The lifting platform is connected with the transverse moving platform through a shear fork type lifting mechanism, and the shear fork type lifting mechanism is driven by a hydraulic device; the transverse moving platform is connected with the base through a lead screw nut transmission mechanism, and the lead screw nut transmission mechanism is driven by a motor A; the base is provided with a wheel set, the wheel set is used for moving the base, and the wheel set is driven by a motor B; and the hydraulic driving mechanism, the motor A and the motor B are all controlled by the control device. The method is suitable for large-scale equipment in the updating and maintenance work of substation equipment, is convenient and fast, and is high in safety.

Description

Technical Field

[0001] The present invention relates to a loading platform, and particularly to a mobile lifting platform for heavy equipment in a substation. Background Art

[0002] In the equipment renewal and maintenance work of a substation, due to the limitations of on-site space and other environmental conditions, the entry of large equipment has always been a thorny problem. The traditional methods of building steel pipe scaffolding and solid wood platforms are not only cumbersome in the installation and disassembly processes, consuming a large amount of manpower and time, but also have many inconveniences and safety hazards. Summary of the Invention

[0003] To overcome the above defects, the present invention aims to provide a mobile lifting platform for heavy equipment in a substation, which is applicable to the entry of large equipment in the equipment renewal and maintenance work of a substation, is convenient and fast, and has high safety.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A mobile lifting platform for heavy equipment in a substation includes a lifting platform, a lateral moving platform, a base, and a control device, which are connected in sequence from top to bottom;

[0006] The lifting platform is connected to the lateral moving platform through a scissor-type lifting mechanism, and the scissor-type lifting mechanism is driven by a hydraulic device;

[0007] The lateral moving platform is connected to the base through a screw-nut transmission mechanism, and the screw-nut transmission mechanism is driven by a motor A;

[0008] The base is provided with a wheel set for moving the base, and the wheel set is driven by a motor B;

[0009] The hydraulic drive mechanism, motor A, and motor B are all controlled by the control device.

[0010] Furthermore, the lifting platform is provided with a horizontal adjustment mechanism, which includes a gyroscope sensor and an electric telescopic column. The lifting platform includes a bearing plate and a support frame. The support frame is connected to the scissor-type lifting mechanism. The upper end of the electric telescopic column is connected to the bearing plate, and the lower end is connected to the support frame. The gyroscope sensor is located on the bearing plate. There are 3 electric telescopic columns. The gyroscope sensor is electrically connected to the control device, and the electric telescopic column is controlled by the control device.

[0011] Preferably, the control device receives the inclination signal fed back by the gyroscope sensor in real time, and controls the extension / retraction of the corresponding electric telescopic column through processing and calculation to keep the bearing plate in a horizontal state.

[0012] Preferably, the bearing plate is square, and the four sides of the bearing plate are respectively connected to the baffle through limit hinges. The limit hinges are configured such that: the limit position of the downward rotation of the baffle is when the baffle is flush with the bearing plate, and the limit position of the upward rotation of the baffle is when the baffle is perpendicular to the bearing plate; the limit hinge is provided with a locking structure.

[0013] Further, the end of the bearing plate is provided with a protrusion A, the protrusion A is provided with an arc-shaped groove, the end of the baffle is provided with a protrusion B, the protrusion B is provided with a convex rib, and the convex rib is embedded in the arc-shaped groove. Both ends of the arc-shaped groove are provided with stop mouths.

[0014] Further, the control device includes an interlock circuit, and the interlock circuit is used to achieve: the hydraulic device and the motor A do not work simultaneously, and the motor A and the motor B do not work simultaneously.

[0015] Further, the longitudinal side of the bearing plate is provided with a guardrail.

[0016] Further, the present invention further includes a handheld operation box. The handheld operation box includes a plurality of operation buttons, and the plurality of operation buttons are used to control the lifting of the lifting platform, the movement of the horizontal moving platform, and the movement of the base; the handheld operation box is connected to the control device by a cable.

[0017] The usage method of the present invention is as follows:

[0018] 1. When the new equipment arrives at the site, first move the mobile lifting platform for heavy substation equipment to the location of the new equipment. Place the new equipment on the lifting platform through hoisting equipment and other means. Then operate the mobile lifting platform for heavy substation equipment to move to the installation location of the new equipment, and move the new equipment to the appropriate position by operating the lifting platform and the horizontal moving platform.

[0019] 2. When the old equipment is removed from the site, first lower the lifting platform of the mobile lifting platform for heavy substation equipment and move it to the location of the old equipment. Move the lifting platform to the appropriate position by operating the lifting platform and the horizontal moving platform. Then place the old equipment on the lifting platform. After resetting the lifting platform and the horizontal moving platform, move the mobile lifting platform for heavy substation equipment to the designated position.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The present invention can translate and lift heavy substation equipment in a restricted space area, eliminating the need to build steel pipe scaffolds and solid wood platforms, improving work efficiency, and saving time and effort.

[0022] 2. The present invention can automatically maintain the levelness of the bearing plate during the operation process, especially during the moving process, effectively eliminating potential safety hazards that may be caused by the inclination of heavy substation equipment.

[0023] 3. The present invention adopts a movable baffle, which can further improve the safety during the operation process.

[0024] 4. The interlocking technology adopted by the present invention can effectively avoid potential safety hazards caused by misoperation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the mechanism of the present invention.

[0026] Figure 2 It is a partial view of the joint part of the bearing plate and the baffle.

[0027] Figure 3 It is a partial view of the joint part of the lateral moving platform and the base.

[0028] Figure 4 It is an electrical schematic diagram of the interlocking circuit of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Embodiment 1

[0031] This embodiment discloses a mobile lifting platform for heavy equipment in a substation, specifically as Figure 1 , Figure 2 , Figure 3 shown, which includes a lifting platform 1, a lateral moving platform 2, a base 3 and a control device that are connected in sequence from top to bottom; the lifting platform 1 and the lateral moving platform 2 are connected by a scissor lifting mechanism 4, and the scissor lifting mechanism 4 is driven by a hydraulic device; the lateral moving platform 2 is connected to the base 3 through a screw-nut transmission mechanism, and the screw-nut transmission mechanism is driven by a motor A; the base 3 is provided with a wheel set 31, and the wheel set 31 is used to move the base, and the wheel set 31 is driven by a motor B; the hydraulic driving mechanism, the motor A and the motor B are all controlled by the control device.

[0032] The bottom surface of the lateral moving platform 2 is provided with two lateral slide rails 21, and the top surface of the base 3 is provided with a chute 32 that is slidably matched with the lateral slide rails 21, and the screw-nut transmission mechanism is located between the two lateral slide rails 21.

[0033] Among them, the lifting platform 1 is used to carry heavy equipment in the substation, and the heavy equipment in the substation is lifted through the scissor lifting mechanism 4, and the heavy equipment in the substation can also be moved horizontally by the lateral moving platform 2. The wheel set 31 is longitudinally arranged, and the base 3 is driven to move forward through the wheel set 31, so as to realize the transportation of the heavy equipment in the substation into or out of the site.

[0034] To ensure that the lifting platform 1 remains in a horizontal position during transportation and loading / unloading, a horizontal adjustment mechanism is provided on the lifting platform 1 in this embodiment. The horizontal adjustment mechanism includes a gyroscopic sensor and electric telescopic columns 11. The lifting platform 1 includes a bearing plate 12 and a support frame 13. The support frame 13 is connected to a scissor-type lifting mechanism 4. The upper end of the electric telescopic column 11 is connected to the bearing plate 12, and the lower end is connected to the support frame 13. The gyroscopic sensor is located on the bearing plate 12 and is used to detect whether the bearing plate 12 is in a horizontal position. There are 3 electric telescopic columns 11, and the 3 electric telescopic columns 11 are located on the same circumference and are arranged in an equilateral triangle. The gyroscopic sensor is electrically connected to the control device, and the electric telescopic column 11 is controlled by the control device. During operation, the control device receives the inclination signal feedback by the gyroscopic sensor in real time, and controls the extension / retraction of the corresponding electric telescopic column 11 through processing and calculation to keep the bearing plate 13 in a horizontal state.

[0035] In this embodiment, the bearing plate 12 is square. As a safety protection measure, the four sides of the bearing plate 12 are respectively connected to the baffle 14 through limit hinges 15. The limit hinge 15 makes the following: the limit position of the downward rotation of the baffle 14 is that the baffle 14 is flush with the bearing plate 12, and the limit position of the upward rotation of the baffle 14 is that the baffle 14 is perpendicular to the bearing plate 12; the limit hinge is provided with a locking structure. When transporting heavy substation equipment, the baffle 14 can be retracted, and when an accident causes the heavy substation equipment to slide, it plays a blocking role. To further ensure the limitation of the baffle 14, the end of the bearing plate 12 is provided with a protrusion A121, the protrusion A121 is provided with an arc-shaped groove 122, the end of the baffle 14 is provided with a protrusion B141, the protrusion B141 is provided with a convex rib 142, and the convex rib 142 is embedded in the arc-shaped groove 122. Both ends of the arc-shaped groove 122 are provided with stop mouths for limiting the rotation angle of the baffle 14, or both ends of the arc-shaped groove 122 are closed.

[0036] In this embodiment, a guardrail 16 is provided on the longitudinal side of the bearing plate 12.

[0037] The design parameters of the heavy substation equipment mobile lifting platform disclosed in this embodiment are: the platform external dimensions are 1.8m x 1.5m x 0.95m, the self-weight is 3 tons, the height of the handrail on the platform surface is 1.2m, the size of the platform surface is 1.8m x 2.7m, the actual load-bearing platform surface size is 1.8m x 1.5m. Each parameter has been carefully designed to fully meet the actual needs of substation equipment handling.

[0038] Embodiment 2

[0039] On the basis of Embodiment 1, this embodiment adds a handheld operation box, and the control device adds an interlock function.

[0040] The handheld operation box includes a number of operation buttons, which are used to control the lifting of the lifting platform, the movement of the horizontal moving platform, and the movement of the base; the handheld operation box is connected to the control device by a cable.

[0041] The interlock circuit is used to achieve that the hydraulic device and motor A do not work simultaneously, and motor A and motor B do not work simultaneously.

[0042] In this embodiment, the interlock is realized by an interlock circuit relay, specifically as Figure 4 shown, including relay K1, relay K2, and relay K3. The coil of relay K1 is connected in series with a pair of normally closed contacts of relay K2 and then connected to the control device. The coil of relay K3 is connected in series with another pair of normally closed contacts of relay K2 and then connected to the control device. The coil of relay K2 is connected in series with a pair of normally closed contacts of relay K1 and a pair of normally closed contacts of relay K3 and then connected to the control device. A pair of normally open contacts of relay K1 are connected in series in the starting circuit of the hydraulic device. A pair of normally open contacts of relay K2 are connected in series in the starting circuit of motor A. A pair of normally open contacts of relay K3 are connected in series in the starting circuit of motor B. The control device controls the hydraulic device, motor A, and motor B through relay K1, relay K2, and relay K3 respectively to form an interlock relationship, which further ensures the safety of the mobile lifting platform for heavy equipment in the substation.

[0043] Other parts of this embodiment are the same as those of Embodiment 1, so they will not be elaborated here.

[0044] Of course, the present invention can also have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. Mobile lifting platform for heavy equipment in substation, characterized by: It includes a lifting platform, a lateral moving platform, a base and a control device which are connected in sequence from top to bottom; The lifting platform is connected to the transverse moving platform via a scissor-type lifting mechanism, and the scissor-type lifting mechanism is driven by a hydraulic device; The transverse moving platform is connected to the base via a screw-nut transmission mechanism, and the screw-nut transmission mechanism is driven by a motor A; The base is provided with a wheel set, which is used to move the base and is driven by a motor B; The hydraulic drive mechanism, motor A and motor B are all controlled by a control device.

2. The mobile lifting platform for heavy equipment of substation according to claim 1 is characterized by: The lifting platform is provided with a horizontal adjustment mechanism, which includes a gyroscope sensor and an electric telescopic column. The lifting platform includes a load-bearing plate and a support frame. The support frame is connected to the scissors-type lifting mechanism. The upper end of the electric telescopic column is connected to the load-bearing plate and the lower end is connected to the support frame. The gyroscope sensor is located on the load-bearing plate. There are three electric telescopic columns. The gyroscope sensor is electrically connected to the control device, and the electric telescopic column is controlled by the control device.

3. The mobile lifting platform for heavy equipment of substation according to claim 2 is characterized by: The control device receives the inclination angle signal fed back by the gyro sensor in real time, and controls the extension / contraction of the corresponding electric telescopic column after processing and calculation, so that the bearing plate is kept in a horizontal state.

4. According to the mobile lifting platform for heavy equipment of substation according to claim 2, it is characterized in that: The bearing plate is square, and the four sides of the bearing plate are connected to the baffle through limit hinges respectively. The limit hinges make the limit position of the baffle rotating downwards be flush with the bearing plate, and the limit position of the baffle rotating upwards be perpendicular to the bearing plate. The limit hinge is provided with a locking structure.

5. According to the mobile lifting platform for heavy equipment of substation according to claim 4, it is characterized in that: The end of the bearing plate is provided with a protrusion A, and the protrusion A is provided with an arc groove. The end of the baffle is provided with a protrusion B, and the protrusion B is provided with convex ridges, and the convex ridges are embedded in the arc groove. Both ends of the arc groove are provided with stoppers.

6. According to the mobile lifting platform for heavy equipment of substation according to claim 1, it is characterized in that: The control device comprises an interlocking circuit, and the interlocking circuit is used to realize: the hydraulic device and the motor A do not work at the same time, and the motor A and the motor B do not work at the same time.

7. According to the mobile lifting platform for heavy equipment of substation according to claim 3, it is characterized in that: The longitudinal sides of the bearing plate are provided with guardrails.

8. According to the mobile lifting platform for heavy equipment of substation according to claim 3, it is characterized in that: Also included is a handheld operating box, the handheld operating box includes a plurality of operating buttons, the plurality of operating buttons are used to control the lifting and lowering of the lifting platform, the movement of the lateral moving platform and the movement of the base; The handheld operation box is connected to the control device cable.

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