CN112141972A - Straight arm double rotation inspection work platform mechanism - Google Patents

Abstract

Provides a straight-arm double-turn overhaul work platform mechanism, a primary rotary device is fixed on the base, the primary rotary device is connected with the secondary rotary device on which the work platform is fixed at the upper end through a luffing telescopic device, and the work platform is provided with There is a lifting and dialing device. The primary rotary device is provided with a luffing cylinder that is hinged with one end of the luffing telescopic device and used to adjust the pitching action of the luffing telescopic device. Leveling cylinder for adjusting the angle of the work platform. The invention realizes the 360° continuous rotary motion of the height-adjustable working platform, and the overall action flexibility of the mechanism is high, which can effectively cover the working conditions of the catenary, tunnel and sound barrier maintenance area, increase the space of the working platform, increase the bearing capacity, and can The number of accommodating operators and equipment has increased, and maintenance operations have been used, and the accuracy of vehicle parking at fixed points is low. The flexibility of the operation platform action is fully utilized to compensate and adjust the position of the operation platform.

Description

Straight arm double rotation inspection work platform mechanism

technical field

The invention belongs to the technical field of work platforms, and in particular relates to a straight arm double-turn overhaul work platform mechanism.

Background technique

my country's railway transportation has completely entered the era of electric locomotives, and the maintenance and repair of railway lines is extremely important. The existing three-platform operation device is an important operation platform for railway line maintenance and repair. The number of operators on the platform is limited, especially in the tunnel maintenance condition, the maintenance tools such as grouting machine and impact drill are heavy, the impact force is large, the heavy maintenance equipment and many operators cannot be transported to the work position for maintenance; The working platform used in the sound barrier condition needs to be able to adapt to the single-line and double-line fully enclosed and semi-enclosed maintenance areas, and there is currently no suitable maintenance work platform; in addition, the existing work platform, special Strong, poor versatility, the operation platform used for maintenance cannot take into account the tunnel maintenance, the operation platform used for tunnel maintenance cannot take into account the sound barrier maintenance, and cannot be used for the integrated maintenance operation of the tunnel, catenary and sound barrier at the same time. During the operation, the precise positioning and parking requirements of the vehicle are high, and the fixed-point parking is required to reach the working position, and the positioning requirements are high.

The document with the application number of 201910395215.0 and the title of "a multi-platform operation device" (hereinafter referred to as the comparison document 1) discloses a method to solve the problems of the existing multi-platform device's low degree of automation, intelligence, and operation stability, The technical problems that the reliability and safety cannot be guaranteed include: the main platform, the left platform, and the right platform. The main platform can be vertically lifted by the main lifting mechanism, the left platform can be vertically lifted by the left lifting mechanism, and the right platform can be vertically lifted by the right lifting mechanism. The mechanism is vertically lifted, and the left platform and the right platform are moved horizontally through the left translation mechanism and the right translation mechanism connected with the left lifting mechanism and the right lifting mechanism respectively. Compared with the document 1, the angle adjustment cannot be carried out, and the specificity is strong, and the tunnel and sound barrier area cannot be repaired and maintained; In the reference document 2), a telescopic rotary lifting platform for solving the problems of single function, complex process, low material utilization rate and high cost of the existing catenary maintenance vehicle is disclosed, which can be quickly and accurately assembled with the whole vehicle, reducing The assembly site, in which, the reference document 2 discloses the following structure: the outer ring of the slewing bearing is provided with a slewing limit device and a brake assembly, the brake assembly includes a brake hydraulic cylinder and a brake band, and the lifting and lowering are realized by a hydraulic braking system The rotary brake of the column; the rotary limit device includes the left limit, the right limit and the middle position, which can ensure the safe work of the work platform device in the left half area, the right half area and the middle position. It can be seen from this that although the The rotary bearing can drive the lifting column fixed on the rotary table to rotate through the rotary table. However, due to the setting of the rotary limit device and the brake assembly (as shown in Figures 1 and 2), the left and right rotation angle of the lifting column is less than 180°. The scope of maintenance and repair of the work platform is limited, and the work platform in Comparative Document 2 cannot be displaced as a whole, so that the work platform cannot meet the maintenance work of the tunnel and the sound barrier. Therefore, it is necessary to improve the above problems.

SUMMARY OF THE INVENTION

The technical problem solved by the present invention is to provide a straight-arm double-swing inspection work platform mechanism. The secondary slewing device of the working platform is connected as a whole to realize the 360° continuous slewing motion of the working platform with adjustable height. The working platform mechanism has high flexibility of action and a large working range, which can effectively cover the maintenance area of catenary, tunnel and sound barrier. Under the working conditions, the space of the working platform is increased, the carrying capacity is increased, the number of operators and equipment can be increased, and the maintenance operation is also used. And adjust the position of the work platform to effectively improve the work efficiency.

The technical scheme adopted in the present invention: a straight arm double-turn overhaul work platform mechanism, including a base fixedly connected with the frame, a first-stage rotary device is fixed on the base, and the first-stage rotary device is connected to the upper end of which the work platform is fixed. The secondary slewing device is connected by a luffing telescopic device, the working platform is provided with a wire lifting device, and the first-level slewing device is provided with a variator that is hinged to one end of the luffing telescopic device and used to adjust the pitching action of the luffing and telescopic device. The other end of the luffing telescopic device is provided with a leveling oil cylinder that is hinged with the secondary slewing device and used to adjust the angle of the working platform.

Wherein, the first-stage slewing device includes a slewing support, a first-stage hydraulic motor, a reducer and a drive gear, and both ends of the horizontal center line below the slewing support are provided with a first-stage hydraulic motor and a reducer. A mounting plate is fixed on the end face, and the input shaft of the reducer arranged on the mounting plate is fixedly connected with the output shaft of the first-stage hydraulic motor installed on the base, and the drive gear on the output shaft of the reducer is adapted to the ring gear of the slewing support meshing, a support seat is fixed on the inner gear ring of the slewing support, the end of the piston rod of the luffing oil cylinder is hinged to the outside of one end of the luffing telescopic device, and one end of the luffing telescopic device and the cylinder of the luffing oil cylinder are hinged to the support seat.

Further, the secondary rotary device includes a secondary rotary base, a secondary hydraulic motor, a worm gear and a worm, the worm gear is fixed on the bottom of one end of the working platform and the worm mounted on the upper end of the secondary rotary base is engaged with the worm gear, and the worm gear is engaged with the worm gear. The end of the worm is fixedly connected with the output shaft of the secondary hydraulic motor, the lower end of the secondary rotary seat is hinged with the other end of the luffing telescopic device, one end of the leveling oil cylinder is hinged to the other end of the luffing telescopic device and the piston of the leveling oil cylinder is hinged The end of the rod is hinged on the outside of the secondary rotary seat.

Further, the luffing and telescopic device includes a basic arm, a telescopic arm and a telescopic oil cylinder. Both the basic arm and the telescopic arm adopt a box-shaped structure. One end of the arm is sleeved, and two telescopic oil cylinders with symmetrical positions are installed in the basic arm. The piston rod of the telescopic oil cylinder is connected with the pin on the inner wall of the other end of the telescopic arm, and the telescopic arm is controlled by the telescopic oil cylinder. The ends of the luffing cylinder piston rods on both sides of the basic arm and hinged on the primary slewing device are hinged with the basic arm, and two leveling cylinders are symmetrically installed inside the other end of the telescopic arm, and the end of the leveling cylinder piston rod is connected to the base arm. The secondary slewing device is articulated.

Further, the wire lifting device includes a height adjusting rod, a fixed seat and a wire dialing claw, the height adjusting rod is located outside the railing of the work platform, and the height adjusting rod is height-adjustably installed on the railing of the work platform through a plurality of fixed seats. On the top, the thread removal claw is fixed on the upper end of the height adjustment rod.

Further, the fixing seat is composed of a U-shaped grooved plate and a fixing sleeve fixed in the middle of the outer surface of the U-shaped grooved plate. The height adjustment rod is tightly fixed by the tightening bolts. The railing bar of the working platform is located in the U-shaped groove of the U-shaped grooved plate, and the U-shaped grooved plate is fixed to the work by the fastening bolts that fasten the lower end of the U-shaped grooved plate. On the railing crossbar of the platform, the outer end of the fastening bolt is fixed with a transverse fastening handle which is convenient for rotating operation.

The advantages of the present invention compared with the prior art:

1. In this technical solution, a first-level slewing device is installed on the base that is fixedly connected to the frame, and the first-level slewing device and the second-level slewing device fixed with the working platform are connected by a luffing telescopic device. The adjustable working platform has 360° continuous rotary motion, the working platform mechanism has high flexibility of action, and has a large working range, which can effectively cover the working conditions of the catenary, tunnel, and sound barrier maintenance area;

2. On the basis of the 360° continuous rotation of the primary rotary device, this technical solution integrates the 360° continuous rotation of the secondary rotary device to provide conditions for the flexible rotary adjustment of the working platform, and through the set luffing cylinders, the control of the amplitude can be realized. The adjustment of the pitching action of the telescopic device, and the setting of the leveling cylinder are used to adjust the angle of the work platform, so as to ensure that the work platform is always kept level and provide operators with safe and reliable work adjustment;

3. The working platform of this technical solution integrates a wire lifting device for conducting wire, which facilitates the maintenance and repair of the catenary. The height and position of the lifting wire device can be adjusted, and it can be used after adjusting the position with the action of the platform, and the adjustment is flexible. Convenience and good operability;

4. This technical solution increases the space of the working platform, increases the carrying capacity, can accommodate an increase in the number of operators and equipment, and makes more use of maintenance operations;

5. Under the working conditions of this technical solution, the accuracy of fixed-point parking of the vehicle is reduced, and the flexibility of the action of the working platform can be fully utilized to compensate and adjust the position of the working platform, thereby effectively improving the working efficiency.

Description of drawings

Fig. 1 is the front view of the structure of the present invention;

Fig. 2 is the left side view of the structure of the present invention

Fig. 3 is the working state schematic diagram of the present invention;

4 is a schematic structural diagram of a first-level rotary device of the present invention;

Fig. 5 is the structural schematic diagram of the luffing telescopic device of the present invention;

6 is a schematic structural diagram of a secondary rotary device of the present invention;

FIG. 7 is a schematic structural diagram of the wire lifting device of the present invention.

Detailed ways

An embodiment of the present invention is described below with reference to the accompanying drawings 1-7, 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, but not all of the embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so that the The particular orientation configuration and operation, therefore, should not be construed as limiting the invention.

As shown in Figure 1-3, the straight-arm double-turn overhaul work platform mechanism includes a base 1 that is fixedly connected to the frame. Specifically, the base 1 is fixed to the top of the frame with bolts. The base 1 is fixed with a level 1. Rotary device 2, the primary rotary device 2 is connected with the secondary rotary device 4 on which the working platform 5 is fixed at the upper end through the luffing telescopic device 3, the working platform 5 is provided with a lifting wire device 8, the primary The slewing device 2 is provided with a luffing cylinder 6 that is hinged with one end of the luffing telescopic device 3 and used to adjust the pitching action of the luffing and telescopic device 3. The other end of the luffing and telescopic device 3 is hinged with the secondary slewing device 4 and used The leveling cylinder 7 for adjusting the angle of the work platform 5; in the above structure, on the basis of the 2360° continuous rotation of the primary rotary device, the 360° continuous rotation of the secondary rotary device 4 is integrated to provide conditions for the flexible rotary adjustment of the work platform 5. And through the set luffing cylinder 6, the adjustment of the pitching action of the luffing telescopic device 3 is realized, and the setting of the leveling cylinder 7 is used to adjust the angle of the working platform 6, so as to ensure that the working platform 6 is always kept horizontal, which is for the operator. Provide safe and reliable job adjustment,

As shown in FIG. 4 , the primary slewing device 2 includes a slewing support 2-1, a primary hydraulic motor 2-2, a reducer 2-3 and a drive gear 2-4. The horizontal center line below the slewing support 2-1 Both ends are provided with a first-stage hydraulic motor 2-2 and a reducer 2-3, the lower end surface of the outer ring of the slewing support 2-1 is fixed with a mounting plate 2-6 and the reducer 2 is arranged on the mounting plate 2-6 -3 The input shaft is fixedly connected with the output shaft of the primary hydraulic motor 2-2 installed on the base 1, and the drive gear 2-4 on the output shaft of the reducer 2-3 is compatible with the inner gear ring of the slewing support 2-1 With meshing, 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 and telescopic device 3, and one end of the luffing and telescopic device 3 is connected to The cylinder bodies of the luffing cylinders 6 are all hinged on 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 through the reducer 2-3 to drive the drive gear 2-4 After the rotation, the 360° continuous rotation of the luffing telescopic device 3 is realized, and the above structure can also be realized by the slewing bearing 2-1 of the outer gear ring and the inner ring structure;

As shown in FIG. 6 , the secondary rotary device 4 includes a secondary rotary seat 4-1, a secondary hydraulic motor 4-2, a worm gear 4-3 and a worm 4-4, and the worm gear 4-3 is fixed on the working platform 5. The worm 4-4 at the bottom of one end and installed on the upper end of the secondary rotary seat 4-1 meshes with the worm wheel 4-3, and the end of the worm 4-4 is fixedly connected with the output shaft of the secondary hydraulic motor 4-2. The lower end of the secondary rotary base 4-1 is hinged with the other end of the luffing telescopic device 3, one end of the leveling oil cylinder 7 is hinged to the other end of the luffing telescopic device 3, and the end of the piston rod of the leveling oil cylinder 7 is hinged to the secondary rotary Outside the seat 4-1; 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 working platform 5; in the above structure, not only can The transmission structure of worm gear 4-3 and worm 4-4 is adopted, and bevel gear transmission structure can also be used;

As shown in FIG. 5 , the luffing and telescopic device 3 includes a basic arm 3-1, a telescopic arm 3-2 and a telescopic oil cylinder 3-3, and the basic arm 3-1 and the telescopic arm 3-2 are both box-shaped structures , it can also be realized by a polygonal structure, a circular structure, and an elliptical structure. One end of the basic arm 3-1 is hinged with the first-level rotary 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 oil cylinders 3-3 with symmetrical positions are installed in the basic arm 3-1, and the piston rod of the telescopic oil cylinder 3-3 is connected with the pin on the inner wall of the other end of the telescopic arm 3-2, and passes through the telescopic oil cylinder 3- 3. To control the telescopic arm 3-2, 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 to the primary slewing device 2, is hinged with the basic arm 3-1. 3-2 The other end of the other end is symmetrically installed with two leveling oil cylinders 7, and the end of the piston rod of the leveling oil cylinder 7 is hinged with the secondary rotary device 4; 6. The expansion and contraction of the piston rod is controlled, so as to adjust the position of the working platform 5; in the above technical solution, the overall length of the luffing telescopic device 3 is mainly driven by the expansion and contraction of the piston rod of the telescopic cylinder 3-3 to drive the telescopic arm 3-2 The length change of the luffing telescopic device 3 finally realizes the adjustment of the height of the working platform 5; the luffing telescopic device 3 used in this structure is a one-stage telescopic structure, and a two-stage or multi-stage telescopic structure can also be used. The height adjustment of the working platform 5 is realized; in this structure, the telescopic oil cylinder 3-3 is a built-in structure, and an external structure can also be used to realize the above functions.

As shown in FIG. 7 , the wire lifting device 8 includes a height adjusting rod 8-1, a fixing base 8-2 and a wire pulling claw 8-3, and the height adjusting rod 8-1 is located outside the railing of the working platform 5 and The height adjustment rod 8-1 is height-adjustably installed on the railing of the working platform 5 through a plurality of fixing seats 8-2, and the wire-pulling claw 8-3 is fixed on the upper end of the height adjustment rod 8-1; The seat 8-2 is composed of a U-shaped groove plate 8-4 and a fixing sleeve 8-5 fixed in 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 the height adjustment rod 8-1 is pressed and fixed by the handwheel locking bolt 8-6 threaded on the fixing sleeve 8-5. In the groove, the U-shaped groove plate 8-4 is fixed on the railing bar of the working platform 5 by the fastening bolts that fasten the lower end of the U-shaped groove plate 8-4. The outer ends of the fastening bolts are fixed with convenient The horizontal tightening handle 8-7 for rotating operation; in the above technical solution, a wire lifting and pulling device 8 for conducting wires is integrated on the working platform 5. During operation, the wire pulling claw 8-3 in the wire lifting and pulling device 8 is implemented. The function of lifting and pulling the wire of the wire is convenient for the maintenance and repair of the catenary. The height and position of the lifting and pulling device 8 can be adjusted. It can be used after adjusting the position with the action of the platform. The space and carrying capacity of the work platform are increased, the number of operators and equipment that can be accommodated is increased, and maintenance operations are also used.

In this structure, the rotation angle of the primary slewing device 2 and the secondary slewing device of the double-swing inspection work platform mechanism of the straight arm includes any angle value within 0~360°, and the rotation angle can be limited by means of mechanical rotation limit, or The swivel angle can be limited by means of limit switches and control logic.

Under the working conditions of the technical solution, the accuracy of the fixed-point parking of the vehicle is reduced, the flexibility of the action of the working platform can be fully utilized, the position of the working platform can be compensated and adjusted, and the working efficiency can be effectively improved.

The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made based on the contents described in the claims of the present invention shall be included within the scope of the claims of the present invention. .

Claims (6)

1. The straight-arm double-turn overhaul work platform mechanism, comprising a base (1) fixedly connected to the vehicle frame, characterized in that: a first-stage turning device (2) is fixed on the base (1), and the first-stage turning The device (2) is connected with the secondary slewing device (4) on which the working platform (5) is fixed at the upper end through the luffing telescopic device (3). The working platform (5) is provided with a wire lifting device (8), so The first-stage rotary device (2) is provided with a luffing oil cylinder (6) hinged to one end of the luffing telescopic device (3) and used for adjusting the pitching action of the luffing and telescopic device (3). The other end is provided with a leveling oil cylinder (7) hinged with the secondary slewing device (4) and used for adjusting the angle of the working platform (5). 2. The straight-arm double-turn overhaul work platform mechanism according to claim 1, characterized in that: the first-stage turning device (2) comprises a turning support (2-1), a first-stage hydraulic motor (2-2), A reducer (2-3) and a drive gear (2-4), both ends of the horizontal center line below the slewing support (2-1) are provided with a first-stage hydraulic motor (2-2) and a reducer (2-3) , the lower end surface of the outer ring of the slewing support (2-1) is fixed with a mounting plate (2-6) and the input shaft of the reducer (2-3) arranged on the mounting plate (2-6) and the input shaft mounted on the base ( 1) The output shaft of the first-stage hydraulic motor (2-2) is fixedly connected, and the drive gear (2-4) on the output shaft of the reducer (2-3) is compatible with the ring gear of the slewing support (2-1). With meshing, a support seat (2-5) is fixed on the inner gear ring of the slewing support (2-1), and 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 cylinder body of the luffing oil cylinder (6) are hinged on the support base (2-5). 3. The straight-arm double-turn overhaul work platform mechanism according to claim 1, wherein the secondary rotary device (4) comprises a secondary rotary seat (4-1), a secondary hydraulic motor (4-2) ), a worm gear (4-3) and a worm (4-4), the worm gear (4-3) is fixed on the bottom of one end of the working platform (5) and is mounted on the worm (4-1) on the upper end of the secondary rotary seat (4-1). 4-4) meshing with the worm gear (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 lower end of the secondary rotary seat (4-1) It is hinged with the other end of the luffing telescopic device (3), one end of the leveling oil 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 oil cylinder (7) is hinged to the secondary rotation Outer side of seat (4-1). 4. The straight-arm double-turn overhaul work platform mechanism according to claim 1, wherein the luffing telescopic device (3) comprises a basic arm (3-1), a telescopic arm (3-2) and a telescopic oil cylinder (3-3), the basic arm (3-1) and the telescopic arm (3-2) both adopt box-type structures, and one end of the basic arm (3-1) is hinged with the primary slewing device (2) to form a basic structure. The other end of the arm (3-1) is sleeved with one end of the telescopic arm (3-2), and two telescopic oil cylinders (3-3) arranged symmetrically in position are installed in the basic arm (3-1). 3-3) The piston rod is connected with the pin on the inner wall of the other end of the telescopic arm (3-2), and the telescopic arm (3-2) is controlled to extend and retract by the telescopic oil cylinder (3-3), which is located in the basic arm (3-2). -1) The end of the piston rod of the luffing cylinder (6) on both sides and hinged on the primary slewing device (2) is hinged with the basic arm (3-1), and the other end of the telescopic arm (3-2) is internally symmetrical Two leveling oil cylinders (7) are installed, and the end of the piston rod of the leveling oil cylinder (7) is hinged with the secondary slewing device (4). 5. The straight-arm double-turn overhaul work platform mechanism according to any one of claims 1-4, characterized in that: the wire lifting device (8) comprises a height adjusting rod (8-1), a fixing seat (8) -2) and the wire pulling claw (8-3), the height adjustment rod (8-1) is located outside the railing of the working platform (5) and the height adjustment rod (8-1) passes through a plurality of fixing seats (8-2) ) is installed on the railing of the working platform (5) in a height-adjustable manner, and the wire-pulling claw (8-3) is fixed on the upper end of the height-adjusting rod (8-1). 6. The straight-arm double-turn overhaul work platform mechanism according to any one of claims 5, characterized in that: the fixed seat (8-2) consists of a U-shaped groove plate (8-4) and is fixed to the U-shaped groove The plate (8-4) consists of a fixing sleeve (8-5) in the middle of the outer surface of the plate. 5) The handwheel locking bolts (8-6) on the height adjustment rods (8-1) are tightly fixed, and the railing bars of the working platform (5) are located in the U-shaped groove plate (8-4). The U-shaped groove plate (8-4) is fixed on the railing bar of the working platform (5) through the fastening bolts that fasten the lower end of the U-shaped groove plate (8-4). The outer end is fixed with a lateral tightening handle (8-7) which is convenient for rotating operation.

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