Straight arm double-rotation maintenance operation platform mechanism

A work platform, double-turn technology, applied in the direction of hoisting device, lifting equipment safety device, etc., can solve the problems of strong speciality, low material utilization rate, complex process, etc., to improve work efficiency, flexible and convenient adjustment, and flexible action. high sex effect

Pending Publication Date: 2020-12-29
BAOJI CSR TIMES ENG MACHINERY
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AI-Extracted Technical Summary

Problems solved by technology

[0002] my country's railway transportation has completely entered the era of electric locomotives, and the maintenance and overhaul of railway lines are extremely important. The existing three-platform operating device is an important operating platform for railway line maintenance and overhaul. The number of people working on the platform is limited, especially in tunnel maintenance conditions, where maintenance tools such as grouting machines and percussion drills are heavy, have a large impact force, heavy maintenance equipment, and many operators cannot be transported to the work station for maintenance; The working platform used under the condition of sound barrier needs to be able to adapt to the fully enclosed and semi-enclosed maintenance areas of single-line and double-line, but there is no suitable maintenance work platform at present; Strong, poor versatility, the operation platform used for maintenance cannot take into account tunnel maintenance, and the operation platform used for tunnel maintenance cannot take into account the maintenance of sound barriers, and cannot be used for the maintenance of integrated tunnels, catenary and sound barriers at the same time. At the same time, maintenance During operation, there are high requirements for accurate positioning and parking of the vehicle, and it is necessary to stop at a fixed point to reach the work position, and the positioning requirements are high
[0003] The application number is 201910395215.0, and the document named "a multi-platform operating device" (hereinafter referred to as comparative document 1) discloses a method to solve the problems of existing multi-operating platform devices, such as low automation, low intelligence, and operational stability. Technical problems that cannot guarantee reliability and safety, including: main platform, left platform, and right platform. The main platform can be lifted vertically through the main lifting mechanism, the left platform can be lifted vertically through the left lifting mechanism, and the right platform can be lifted vertically through the right platfor...
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Method used

As shown in Figure 7, described lifting and pulling line device 8 comprises height adjusting rod 8-1, fixed base 8-2 and wire pulling claw 8-3, and described height adjusting rod 8-1 is positioned at the working platform 5 The outside of the railing and the height adjustment rod 8-1 are installed on the railing of the work platform 5 through a plurality of fixed seats 8-2, and the height adjustment rod 8-1 is fixed on the upper end of the height adjustment rod 8-1; specifically, The fixing seat 8-2 is composed of a U-shaped groove plate 8-4 and a fixing sleeve 8-5 fixed on the middle part of the outer surface of the U-shaped groove plate 8-4, and the fixing sleeve 8-5 is set on the height adjustment rod 8 -1 and through the handwheel locking bolt 8-6 threaded on the fixed sleeve 8-5, the height adjustment rod 8-1 is pressed against and fixed, and the railing bar of the working platform 5 is located on the U-shaped groove plate 8- 4 in the U-shaped groove and fix the U-shaped groove plate 8-4...
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Abstract

According to the straight-arm double-rotation overhaul operation platform mechanism. A first-stage rotation device is fixed to a base, the first-stage rotation device is connected with a second-stagerotation device through a variable-amplitude telescopic device, a working platform is fixed to the upper end of the second-stage rotation device, and a wire lifting and pulling device is arranged on the working platform; and the first-stage rotation device is provided with a variable-amplitude oil cylinder which is hinged to one end of the variable-amplitude telescopic device and used for adjusting the pitching action of the variable-amplitude telescopic device, and the other end of the variable-amplitude telescopic device is provided with a leveling oil cylinder which is hinged to the second-stage rotation device and used for adjusting the angle of the working platform. According to the straight-arm double-rotation overhaul operation platform mechanism, the 360-degree continuous rotary motion of the height-adjustable working platform is achieved, the overall action flexibility of the mechanism is high, the working conditions of contact networks, tunnels and sound barrier overhauling areas can be effectively and completely covered, the space of the working platform is increased, the bearing capacity is improved, and the number of contained operators and equipment is increased; overhauling operation is utilized, so that the requirement for vehicle fixed-point parking accuracy is low; and the action flexibility of the working platform is fully utilized, so that the position of the working platform is compensated and adjusted.

Application Domain

Safety devices for lifting equipments

Technology Topic

EngineeringMechanical engineering +1

Image

  • Straight arm double-rotation maintenance operation platform mechanism
  • Straight arm double-rotation maintenance operation platform mechanism
  • Straight arm double-rotation maintenance operation platform mechanism

Examples

  • Experimental program(1)

Example Embodiment

[0024]Attached belowFigure 1-7 An embodiment of the present invention is described so as to clearly and completely describe the technical solution. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0025]In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation. The specific orientation structure and operation, therefore, cannot be understood as a limitation of the present invention.
[0026]Straight arm double-rotation overhaul work platform mechanism, such asFigure 1-3As shown, it includes a base 1 fixedly connected to the frame. Specifically, the base 1 is fixed to the top of the frame by bolts. The base 1 is fixed with a primary turning device 2 which is fixed to the upper end. The secondary slewing device 4 with a working platform 5 is connected by a luffing telescopic device 3. The operating platform 5 is provided with a wire lifting device 8, and the primary slewing device 2 is provided with one end of the luffing telescopic device 3 articulated It is also used to adjust the luffing cylinder 6 of the luffing and telescopic device 3, and the other end of the luffing and telescopic device 3 is provided with a leveling cylinder 7 articulated with the secondary slewing device 4 and used for adjusting the angle of the working platform 5; in the above structure , On the basis of 2360° continuous rotation of the first-stage slewing device, the 360° continuous rotation of the second-stage slewing device 4 is integrated to provide conditions for the flexible rotation adjustment of the working platform 5, and the luffing cylinder 6 is set to realize the luffing and stretching The adjustment of the pitching action of the device 3 and the setting of the leveling cylinder 7 are used to adjust the angle of the work platform 6 so as to ensure that the work platform 6 is always level and provide safe and reliable work adjustment for the operators.
[0027]Such asFigure 4 As shown, the first-stage slewing device 2 includes a slewing support 2-1, a first-stage hydraulic motor 2-2, a reducer 2-3, and a driving gear 2-4. The two ends of the horizontal center line below the slewing support 2-1 Both are equipped with a first-level hydraulic motor 2-2 and a reducer 2-3. The lower end of the outer ring of the slewing support 2-1 is fixed with a mounting plate 2-6 and a reducer 2-3 input on the mounting plate 2-6. The shaft is fixedly connected with the output shaft of the first-stage hydraulic motor 2-2 installed on the base 1, and the drive gear 2-4 on the output shaft of the reducer 2-3 meshes with the inner gear ring of the slewing support 2-1, A support seat 2-5 is fixed on the inner gear ring of the slewing support 2-1, the end of the piston rod of the luffing cylinder 6 is hinged to the outside of one end of the luffing telescopic device 3, and one end of the luffing telescopic device 3 and the luffing cylinder The cylinders of 6 are all hinged to the support base 2-5; in the above technical solution, the rotation of the support base 2-5 is driven by the first-stage hydraulic motor 2-2 and the drive gear 2-4 is driven by the reducer 2-3 to rotate. The 360° continuous rotation of the luffing and retracting device 3, the above structure can also be realized by the slewing support 2-1 of the outer gear ring and the inner ring structure;
[0028]Such asFigure 6 As shown, the secondary slewing device 4 includes a secondary slewing seat 4-1, a secondary hydraulic motor 4-2, a worm wheel 4-3, and a worm 4-4. The worm wheel 4-3 is fixed to the bottom of one end of the work platform 5. And the worm 4-4 installed at the upper end of the secondary slewing seat 4-1 meshes with the worm wheel 4-3, the end of the worm 4-4 is fixedly connected with the output shaft of the secondary hydraulic motor 4-2, and the secondary rotary The lower end of the seat 4-1 is hinged with the other end of the luffing and telescopic device 3, one end of the leveling cylinder 7 is hinged to the other end of the luffing and telescopic device 3, and the end of the piston rod of the leveling cylinder 7 is hinged to the secondary revolving base 4 1 Outside; after the secondary hydraulic motor 4-2 drives the worm 4-4 to rotate, the worm 4-4 drives the worm wheel 4-3 to rotate, so as to realize the 360° continuous rotation of the work platform 5; in the above structure, not only the worm wheel 4 can be used -3 The transmission structure of the worm 4-4 can also adopt the bevel gear transmission structure;
[0029]Such asFigure 5 As shown, the luffing and telescopic device 3 includes a basic arm 3-1, a telescopic arm 3-2, and a telescopic cylinder 3-3. Both the basic arm 3-1 and the telescopic arm 3-2 adopt a box-shaped structure. It adopts a polygonal structure, a circular structure, and an elliptical structure. One end of the basic arm 3-1 is hinged with the primary turning device 2 and the other end of the basic arm 3-1 is sleeved with one end of the telescopic arm 3-2. Two telescopic cylinders 3-3 are installed in -1. The piston rod of the telescopic cylinder 3-3 is connected with the pin on the inner wall of the other end of the telescopic arm 3-2, and the telescopic cylinder 3-3 controls the expansion and contraction. The expansion and contraction of the arm 3-2 is that the end of the piston rod of the luffing cylinder 6 which is located on both sides of the basic arm 3-1 and is hinged on the primary turning device 2 is hinged with the basic arm 3-1, and the telescopic arm 3-2 Two leveling cylinders 7 are installed symmetrically at the other end, and the end of the piston rod of the leveling cylinder 7 is articulated with the secondary slewing device 4; in the above technical solution, the overall pitching action of the luffing and telescopic device 3 is through the luffing cylinder 6 piston rod In the above technical solution, the overall length of the luffing telescopic device 3 is mainly driven by the telescopic cylinder 3-3 piston rod to drive the telescopic arm 3-2 to expand and contract. The change in the length of the luffing telescopic device 3 finally realizes the adjustment of the height of the work platform 5; the luffing and telescopic device 3 used in this structure is a primary telescopic structure, and a secondary or multi-level telescopic structure can also be used to realize the work platform 5 Height adjustment: In this structure, the telescopic cylinder 3-3 is a built-in structure, and an external structure can also be used to achieve the above functions.
[0030]Such asFigure 7 As shown, the line lifting device 8 includes a height adjustment rod 8-1, a fixing seat 8-2 and a line claw 8-3. The height adjustment rod 8-1 is located outside the railing of the work platform 5 and the height adjustment rod 8-1 is mounted on the railing of the work platform 5 in a height-adjustable manner through a plurality of fixing bases 8-2, the wire-drawing claw 8-3 is fixed to the upper end of the height adjusting rod 8-1; specifically, the fixing base 8- 2 Consists of a U-shaped groove plate 8-4 and a fixing sleeve 8-5 fixed on the middle of the outer plate surface of the U-shaped groove plate 8-4. The fixing sleeve 8-5 is sleeved on the height adjustment rod 8-1 and passed through threads The handwheel locking bolt 8-6 installed on the fixing sleeve 8-5 tightens and fixes the height adjustment rod 8-1, and the railing crossbar of the work platform 5 is located in the U-shaped groove of the U-shaped groove plate 8-4 And the U-shaped groove plate 8-4 is fixed to the railing crossbar of the work platform 5 through the fastening bolts fixedly connected to the lower end of the U-shaped groove plate 8-4, and the outer ends of the fastening bolts are fixed to facilitate the rotation operation Horizontal fastening handles 8-7; In the above technical solution, a wire lifting device 8 for conducting wires is integrated on the work platform 5. During operation, the wire lifting claws 8-3 in the wire lifting device 8 realize the lifting of the wires. The function of the line and the line, so as to facilitate the maintenance of the catenary, the height and position of the line lifting device 8 can be adjusted, and the adjustment is flexible and convenient, the operability is good, and the work platform space is increased. , The carrying capacity is increased, the number of workers and equipment that can be accommodated increases, and maintenance operations are more utilized.
[0031]In this structure, the rotation angles of the first-level slewing device 2 and the second-level slewing device of the straight-arm double-swing overhaul work platform mechanism include any angle value within 0~360°, and the rotation angle can be limited by mechanical rotation limit, or The rotation angle can be limited by means of limit switches and control logic.
[0032]Under the operating conditions of the technical scheme, the accuracy of the fixed-point parking of the vehicle is reduced, and the flexibility of the action of the operating platform can be fully utilized to compensate and adjust the position of the operating platform, thereby effectively improving the operating efficiency.
[0033]The above-mentioned embodiments are only preferred embodiments of the present invention and are not used to limit the scope of implementation of the present invention. Therefore, all equivalent changes made with the content of the claims of the present invention shall be included in the scope of the claims of the present invention. .

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