CN207353738U - A kind of Three Degree Of Freedom trolley - Google Patents

Abstract

The utility model discloses a kind of Three Degree Of Freedom trolley, including the second rail, walking has the second rail flat car on second rail, the both ends of second rail flat car are respectively equipped with second hydraulic cylinder arranged vertically, the telescopic end of two second hydraulic cylinders is provided with second roller seat, the top surface both ends of second roller seat by roller support be separately installed with one can rotation ground roll wheel shaft, the both ends of the roller shaft are separately installed with second roller.Suitable for the maintenance of GIS device.

Description

Three-degree-of-freedom trolley

Technical Field

The utility model relates to an equipment for GIS overhaul of the equipments especially relates to a three degree of freedom platform trucks.

Background

At present, with the rapid development of high-voltage power equipment technology in China, GIS equipment is widely applied to a high-voltage power system, but GIS equipment maintenance tools do not follow the rapid development rhythm of the high-voltage power equipment technology, and a universal traditional tool mode, namely a vehicle crane, is still adopted for hoisting a metal shell of the GIS equipment in field maintenance. Therefore, the maintenance efficiency is extremely low, the hidden danger of crashing a valuable workpiece exists, and the timely rush repair of a high-voltage power system is seriously influenced. Therefore, it is desirable to develop a platform for servicing GIS equipment, wherein one task is how to disassemble the workpiece tips from the metal shell.

Disclosure of Invention

The utility model aims at overcoming the not enough of above-mentioned background art, provide a three degree of freedom platform trucks.

In order to realize above mesh, the utility model provides a pair of three degree of freedom platform trucks, including the second rail, the walking has second track flatcar on the second rail, the both ends of second track flatcar are equipped with the second hydraulic cylinder of a vertical arrangement respectively, two a second gyro wheel base is installed to the flexible end of second hydraulic cylinder, but a rotation ground roller shaft is installed respectively through the gyro wheel support in the top surface both ends of second gyro wheel base, a second gyro wheel is installed respectively at the both ends of roller shaft.

The three-degree-of-freedom trolley is pushed to the position right below the end of the workpiece of the metal shell, the second roller is slowly lifted through the second hydraulic oil cylinder until the second roller supports the second metal shell, the end of the workpiece can be dismounted at the moment, the end of the workpiece can be mounted through reverse operation, the whole operation process is simple and convenient, the cost is low, and the device is convenient to dismount; meanwhile, after the workpiece end is detached, the workpiece end is moved to a position far away from the rest part of the metal shell through the three-degree-of-freedom trolley, and at the moment, the three-degree-of-freedom trolley can be used as an overhaul platform to overhaul equipment at once, so that the overhaul efficiency is improved, an additional overhaul platform is not needed, and the overhaul cost is further reduced.

In the above scheme, a supporting seat for supporting the roller shaft is arranged on the top surface of the second roller base corresponding to the middle of the roller shaft. The additional supporting seat improves the stress strength of the second roller, so that the reliability and the service life of the three-degree-of-freedom trolley are improved.

In the above scheme, a second guide pillar guide sleeve is respectively arranged between the four corners of the second rail flat car and the corresponding position of the bottom surface of the second roller base. The second guide pillar and guide sleeve are additionally arranged, so that the lifting stability and reliability of the second roller are improved.

In the above scheme, the second guide pillar and guide sleeve are vertically arranged.

In the above scheme, the second guide pillar and guide sleeve include a second guide pillar and a second guide sleeve, the second guide sleeve is vertically installed on the second rail flat car, the second guide pillar is movably inserted into the second guide sleeve, and the upper end of the second guide pillar is connected with the bottom surface of the second roller base.

In the above scheme, the top surface of the second roller base is provided with a second groove, and the two roller shafts are respectively installed at two ends of the second groove. The groove is designed on the top surface of the second roller base, and the roller shaft is arranged in the groove, so that the height of the three-degree-of-freedom trolley can be reduced, and a larger lifting stroke is provided for the lifting structure.

The technical scheme of the utility model beneficial effect who brings is:

1. the three-degree-of-freedom trolley is pushed to the position right below the end of the workpiece of the metal shell, the second roller is slowly lifted through the second hydraulic oil cylinder until the second roller supports the second metal shell, the end of the workpiece can be dismounted at the moment, the end of the workpiece can be mounted through reverse operation, the whole operation process is simple and convenient, the cost is low, and the device is convenient to dismount;

2. after the end of the workpiece is removed, the end of the workpiece is moved to a position far away from the rest part of the metal shell through the three-degree-of-freedom trolley, and at the moment, the three-degree-of-freedom trolley can be used as an overhaul platform to overhaul equipment instantly, so that the overhaul efficiency is improved, an additional overhaul platform is not needed, and the overhaul cost is further reduced;

3. the additionally arranged supporting seat improves the stress strength of the second roller, so that the reliability and the service life of the three-degree-of-freedom trolley are improved;

4. the second guide pillar and guide sleeve are additionally arranged, so that the lifting stability and reliability of the second roller are improved;

5. the groove is designed on the top surface of the second roller base, and the roller shaft is arranged in the groove, so that the height of the three-degree-of-freedom trolley can be reduced, and a larger lifting stroke is provided for the lifting structure.

Drawings

FIG. 1 is a schematic structural view of an inspection platform;

FIG. 2 is a schematic structural view of a six degree-of-freedom trolley;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

FIG. 4 is a schematic structural diagram of a V-shaped rack;

FIG. 5 is a schematic front view of the structure of FIG. 4;

FIG. 6 is a side view of the structure of FIG. 4;

fig. 7 is a schematic structural view of the present invention;

FIG. 8 is a schematic view of the structure of FIG. 7 from another perspective;

FIG. 9 is a schematic front view of the structure of FIG. 7;

FIG. 10 is a schematic structural view of the service platform with the first metal shell removed;

fig. 11 is a schematic view of the structure of fig. 10 with the second metal shell and the workpiece end removed.

In the figure: a six-degree-of-freedom trolley 1, a first steel rail 1a, a first rail flatcar 1b, a first hydraulic cylinder 1c, a first roller base 1d, a chute base plate 1e, a sliding plate bearing seat 1f, a first roller 1g, a traverse cylinder 1h, a driving assembly 1i, a second servo motor 1i1, a speed reducer 1i2, a first servo motor 1j, a planetary speed reducer 1k, a gear 1m, a rack 1n, a first guide post guide sleeve 1p, a first guide post 1p1, a first guide sleeve 1p2, a V-shaped material rack 2, a material rack base 2a, a jacking hydraulic cylinder 2b, a guide sleeve 2c, a guide post 2d, a V-shaped block 2e, a 2e1, an inclined plane 2e2, a mounting plate 2f, a three-degree-of-freedom trolley 3, a second steel rail 3a, a second rail flatcar 3b, a second hydraulic cylinder 3c, a second roller base 3d, a roller support 3e, a roller shaft 3f, a second roller 3g, the device comprises a supporting seat 3h, a second guide post guide sleeve 3i, a second guide post 3i1, a second guide sleeve 3i2, a first metal shell a, a workpiece end a1 and a second metal shell b.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and examples, but the examples should not be construed as limiting the present invention.

Example 1:

the embodiment provides a three-degree-of-freedom trolley, including second rail 3a, the walking has second track flatcar 3b on the second rail 3a, the both ends of second track flatcar 3b are equipped with a vertical second hydraulic cylinder 3c of arranging respectively, two a second gyro wheel base 3d is installed to the flexible end of second hydraulic cylinder 3c, but a rotation ground roller shaft 3f is installed respectively through gyro wheel support 3e in the top surface both ends of second gyro wheel base 3d, a second gyro wheel 3g is installed respectively at the both ends of roller shaft 3 f. The three-degree-of-freedom trolley 3 is pushed to the position right below a workpiece end a1 of the metal shell, the second roller 3g is slowly lifted through the second hydraulic oil cylinder 3c until the second roller 3g supports the second metal shell b, the workpiece end a1 can be dismounted at the moment, the workpiece end a1 can be mounted through reverse operation, the whole operation process is simple and convenient, the cost is low, and the device can be conveniently dismounted; meanwhile, after the workpiece end a1 is detached, the workpiece end a1 is moved to a position far away from the rest part of the metal shell through the three-degree-of-freedom trolley 3, and at the moment, the three-degree-of-freedom trolley 3 can be used as an overhaul platform to overhaul equipment at once, so that the overhaul efficiency is improved, an additional overhaul platform is not needed, and the overhaul cost is further reduced.

A supporting seat 3h for supporting the roller shaft 3f is provided on the top surface of the second roller base 3d at a position corresponding to the middle of the roller shaft 3 f. The additional supporting seat 3h improves the stress strength of the second roller 3g, so that the reliability of the three-degree-of-freedom trolley 3 is improved, and the service life of the three-degree-of-freedom trolley is prolonged. The top surface of the second roller base 3d is provided with a second groove, and the two roller shafts 3f are respectively arranged at two ends of the second groove. The groove is designed on the top surface of the second roller base 3d, and the roller shaft 3f is installed in the groove, so that the height of the three-degree-of-freedom trolley 3 can be reduced, and a larger lifting stroke is provided for a lifting structure.

And a second guide pillar and guide sleeve 3i is respectively arranged between the four corners of the second rail flat car 3b and the corresponding position of the bottom surface of the second roller base 3 d. The second guide pillar and guide sleeve 3i is additionally arranged, so that the lifting stability and reliability of the second roller 3g are improved. The second guide post and guide sleeve 3i is vertically arranged. The second guide post and guide sleeve 3i comprises a second guide post 3i1 and a second guide sleeve 3i2, the second guide sleeve 3i2 is vertically installed on the second rail flat car 3b, the second guide post 3i1 is movably inserted into the second guide sleeve 3i2, and the upper end of the second guide post 3i1 is connected with the bottom surface of the second roller base 3 d.

In the embodiment, the three-degree-of-freedom trolley 3 is pushed to the position right below the workpiece end a1 of the metal shell, the second roller 3g is slowly lifted by the second hydraulic cylinder 3c until the second roller 3g supports the second metal shell b, the workpiece end a1 can be dismounted at the moment, the workpiece end a1 can be mounted by reverse operation, and the whole operation process is simple and convenient, the cost is low, and the device is convenient to dismount; after the workpiece end a1 is removed, the workpiece end a1 is moved to a position far away from the rest part of the metal shell through the three-degree-of-freedom trolley 3, and at the moment, the three-degree-of-freedom trolley 3 can be used as an overhaul platform to overhaul equipment instantly, so that the overhaul efficiency is improved, an additional overhaul platform is not needed, and the overhaul cost is further reduced; the additionally arranged supporting seat 3h improves the stress strength of the second roller 3g, so that the reliability and the service life of the three-degree-of-freedom trolley 3 are improved; the second guide pillar and guide sleeve 3i is additionally arranged, so that the lifting stability and reliability of the second roller 3g are improved; the groove is designed on the top surface of the second roller base 3d, and the roller shaft 3f is installed in the groove, so that the height of the three-degree-of-freedom trolley 3 can be reduced, and a larger lifting stroke is provided for a lifting structure.

Example 2:

when the three-degree-of-freedom trolley 3 is actually used, the three-degree-of-freedom trolley 3, the six-degree-of-freedom trolley 1 and the V-shaped material rack 2 can form a 1000KVGIS equipment maintenance platform, and the maintenance platform comprises two rows of six-degree-of-freedom trolleys 1 which are arranged in parallel and can lift and horizontally transport a metal shell to be maintained to a required position, two V-shaped material racks 2 which can bear the metal shell to be maintained transported by the six-degree-of-freedom trolley 1 and can lift and lower the metal shell to be maintained, and the three-degree-of-freedom trolley 3 which is in butt joint with the V-shaped material rack 2; wherein,

the six-degree-of-freedom trolley 1 comprises a first steel rail 1a tiled below the metal shell to be overhauled, a first rail flatcar 1b is arranged on the first steel rail 1a in a walking mode, two ends of the first rail flatcar 1b are respectively provided with a first hydraulic oil cylinder 1c which is vertically arranged, the telescopic ends of the two first hydraulic oil cylinders 1c are provided with a first roller base 1d, of course, the number of the first hydraulic oil cylinders 1c can be designed according to actual needs, two ends of the top surface of the first roller base 1d are respectively provided with a chute base plate 1e, a sliding plate bearing seat 1f is arranged in each chute base plate 1e in a sliding mode, each sliding plate bearing seat 1f is provided with a first roller 1g, a transverse moving oil cylinder 1h for driving each sliding plate bearing seat 1f to slide is arranged on a side surface of the first roller base 1d corresponding to each sliding plate bearing seat 1f, a driving assembly 1i for driving the corresponding first roller 1g to rotate is arranged at a position, corresponding to one sliding plate bearing seat 1f, on the other side surface of the first roller base 1d, a first servo motor 1j is arranged on the first track flat car 1b, an output shaft of the first servo motor 1j is connected with a planetary reducer 1k, an output shaft of the planetary reducer 1k is connected with a gear 1m, and a rack 1n matched with the gear 1m is longitudinally arranged on the first steel rail 1 a;

the V-shaped material rack 2 comprises a material rack base 2a longitudinally arranged on the inner side of the first steel rail 1a, a jacking hydraulic oil cylinder 2b, two guide sleeves 2c, two guide posts 2d and a V-shaped block 2e, the lower ends of the two guide sleeves 2c are respectively arranged at the two ends of the top surface of the material rack base 2a through a mounting plate 2f, the lower ends of the two guide posts 2d are respectively and movably inserted into the upper ends of the two guide sleeves 2c correspondingly, the upper ends of the two guide posts 2d are respectively connected with the two ends of the bottom surface of the V-shaped block 2e, the cylinder body part of the jacking hydraulic oil cylinder 2b is arranged in the middle of the top surface of the rack base 2a, the telescopic rod of the jacking hydraulic oil cylinder 2b is connected with the middle part of the bottom surface of the V-shaped block 2e, and the top surface of the V-shaped block 2e is of a notch structure for supporting the metal shell to be overhauled; the two V-shaped material racks 2 are respectively arranged at the inner sides of the ends in the same direction of the corresponding first steel rail 1a, and the two V-shaped material racks 2 are arranged at intervals;

the three-degree-of-freedom trolley 3 comprises a second steel rail 3a vertically paved on the outer side of the first steel rail 1a, one end of the second steel rail 3a is arranged towards the V-shaped material rack 2, a second rail flat car 3b runs on the second steel rail 3a, two ends of the second rail flat car 3b are respectively provided with a second hydraulic cylinder 3c which is vertically arranged, the telescopic ends of the two second hydraulic cylinders 3c are provided with a second roller base 3d, two ends of the top surface of the second roller base 3d are respectively provided with a self-rotating roller shaft 3f through a roller support 3e, and two ends of the roller shaft 3f are respectively provided with a second roller 3 g; the two V-shaped material racks 2 and the three-degree-of-freedom trolley 3 are arranged on the same straight line.

The maintenance process of the maintenance platform is as follows:

firstly, all first rollers 1g are lowered to the lowest by a first hydraulic oil cylinder 1 c; secondly, synchronously starting two first servo motors 1j, moving the two-column six-degree-of-freedom trolley 1 to the position below a first metal shell a, adjusting the position of a first roller 1g through a transverse oil cylinder 1h, enabling the first roller 1g to be positioned right below the first metal shell a, and lifting the first roller 1g through a first hydraulic oil cylinder 1c until the first metal shell a is supported; thirdly, removing the first metal shell a; fourthly, slowly lowering the first metal shell a to the lowest level through a first hydraulic oil cylinder 1 c; fifthly, synchronously starting two first servo motors 1j, moving a first metal shell a to a V-shaped material frame 2 through two rows of six-degree-of-freedom trolleys 1, and slowly lifting the first metal shell a to the highest position through a first hydraulic oil cylinder 1 c; sixthly, synchronously starting two first servo motors 1j, moving a first metal shell a to the position above the V-shaped material frame 2 through two rows of six-degree-of-freedom trolleys 1, slowly descending the first metal shell a through a first hydraulic oil cylinder 1c, placing the first metal shell a on the two V-shaped material frames 2, continuously descending the first hydraulic oil cylinder 1c until a first roller 1g is lowered to the lowest, and simultaneously jacking a first metal shell a to the highest position through a jacking hydraulic oil cylinder 2 b; seventhly, synchronously starting two first servo motors 1j, moving the two-column six-degree-of-freedom trolley 1 to the position below a second metal shell b, adjusting the position of a first roller 1g through a transverse oil cylinder 1h, enabling the first roller 1g to be located right below the second metal shell b, and lifting the first roller 1g through a first hydraulic oil cylinder 1c until the second metal shell b is supported; eighthly, removing the second metal shell b; the ninth step, synchronously starting the two first servo motors 1j, and moving the second metal shell b to a position between the dismantling point and the first metal shell a through the two rows of six-degree-of-freedom trolleys 1; tenth, the three-degree-of-freedom trolley 3 is pushed to the position right below the workpiece end a1 of the first metal shell a, and the second roller 3g is slowly lifted through the second hydraulic oil cylinder 3c until the second roller 3g supports the second metal shell b; the eleventh step, removing workpiece end a1, and moving workpiece end a1 to a position far away from the rest of first metal shell a by three-degree-of-freedom trolley 3; twelfth, the power supply is turned off, and all the parts are maintained; step thirteen, after maintenance is finished, the workpiece end a1 is moved back to the position of the rest part of the first metal shell a through the three-degree-of-freedom trolley 3, the mounting position of the workpiece end a1 is adjusted through the three degrees of freedom of the three-degree-of-freedom trolley 3, the first metal shell a is assembled and restored after the adjustment is in place, and the three-degree-of-freedom trolley 3 returns to the initial position after the first metal shell a is assembled; fourteenth, synchronously starting two first servo motors 1j, moving the second metal shell b back to a dismantling point through two rows of six-degree-of-freedom trolleys 1, adjusting the installation position of the second metal shell b by using six degrees of freedom of the six-degree-of-freedom trolleys 1, and installing and restoring the second metal shell b after the six degrees of freedom are adjusted in place; fifteenth, all the first rollers 1g are lowered to the lowest by the first hydraulic oil cylinder 1 c; sixthly, synchronously starting two first servo motors 1j, moving the two-column six-degree-of-freedom trolley 1 to the position below the first metal shell a, slowly lifting the first roller 1g through a first hydraulic oil cylinder 1c, and simultaneously, enabling the jacking hydraulic oil cylinder 2b to be linked and slowly lowered, so that the first roller 1g supports the first metal shell a and is lifted to the highest position, and the jacking hydraulic oil cylinder 2b is lowered to the lowest position; seventeenth, synchronously starting the two first servo motors 1j, moving the first metal shell a to the mounting position through the two rows of six-degree-of-freedom trolleys 1, adjusting the mounting position of the first metal shell a by using the six degrees of freedom of the six-degree-of-freedom trolleys 1, and after the six degrees of freedom are adjusted in place, assembling and restoring the first metal shell a; and eighteenth step, lowering all the first rollers 1g to the lowest level through the first hydraulic oil cylinder 1c, and synchronously starting the two first servo motors 1j to move the two rows of six-degree-of-freedom trolleys 1 back to the initial positions.

The maintenance platform is simple and convenient to operate, low in cost and convenient for equipment disassembly and assembly; meanwhile, a maintenance platform is provided for maintenance of the equipment, the equipment can be maintained immediately after being dismantled, maintenance efficiency is improved, and an additional maintenance platform is not needed, so that maintenance cost is further reduced.

A first guide pillar and guide sleeve 1p which is vertically arranged is arranged between the middle part of the first rail flat car 1b and the position corresponding to the bottom surface of the first roller base 1 d. The first guide pillar and guide sleeve 1p is additionally arranged, so that the lifting stability and reliability of the first roller 1g are improved. The first guide post and guide sleeve 1p comprises a first guide post 1p1 and a first guide sleeve 1p2, the first guide sleeve 1p2 is vertically installed in the middle of the first rail flat car 1b, the first guide post 1p1 is movably inserted into the first guide sleeve 1p2, and the upper end of the first guide post 1p1 is connected with the bottom surface of the first roller base 1 d.

The sliding direction of the sliding plate bearing seat 1f is perpendicular to the traveling direction of the first rail flat car 1b, and the central axis of the first roller 1g is perpendicular to the traveling direction of the first rail flat car 1 b. The sliding direction of the sliding plate bearing seat 1f is designed to be perpendicular to the walking direction of the first rail flat car 1b, so that the position of the first roller 1g can be adjusted conveniently, meanwhile, the central shaft of the first roller 1g is designed to be perpendicular to the walking direction of the first rail flat car 1b, and therefore the first roller 1g can be placed conveniently to place the metal shell. The top surface of the sliding plate bearing seat 1f is provided with a first groove, and the two sliding chute bottom plates 1e are respectively arranged at two ends of the first groove. Through the top surface design recess at slide plate bearing frame 1f to install spout bottom plate 1e in the recess, can reduce six degrees of freedom platform truck 1's height like this, provide bigger lift stroke for elevation structure.

The driving assembly 1i comprises a second servo motor 1i1 and a speed reducer 1i2, the second servo motor 1i1 is mounted on the chute base plate 1e, an output shaft of the second servo motor 1i1 is connected with an input shaft of the speed reducer 1i2, and an output shaft of the speed reducer 1i2 is connected with a central shaft of the corresponding first roller 1 g.

The notch structure comprises a bottom surface 2e1 and two inclined surfaces 2e2, wherein the bottom surface 2e1 is horizontally arranged, two ends of the bottom surface 2e1 are respectively connected with the lower ends of the two inclined surfaces 2e2, and an included angle between the bottom surface 2e1 and the inclined surfaces 2e2 is an obtuse angle. This allows a better resting of the metal casing by designing the recess structure as a concave structure consisting of one bottom surface 2e1 and two inclined surfaces 2e 2. The jacking hydraulic oil cylinder 2b, the guide sleeve 2c and the guide post 2d are all vertically arranged.

A supporting seat 3h for supporting the roller shaft 3f is provided on the top surface of the second roller base 3d at a position corresponding to the middle of the roller shaft 3 f. The supporting seat 3h is arranged, so that the stress strength of the second roller 3g is improved, and the reliability and the service life of the maintenance platform are improved. The top surface of the second roller base 3d is provided with a second groove, and the two roller shafts 3f are respectively arranged at two ends of the second groove. The groove is designed on the top surface of the second roller base 3d, and the roller shaft 3f is installed in the groove, so that the height of the three-degree-of-freedom trolley 3 can be reduced, and a larger lifting stroke is provided for a lifting structure.

And vertically arranged second guide pillar guide sleeves 3i are respectively arranged between the four corners of the second track flat car 3b and the corresponding positions of the bottom surface of the second roller base 3 d. The second guide pillar and guide sleeve 3i is additionally arranged, so that the lifting stability and reliability of the second roller 3g are improved. The second guide post and guide sleeve 3i comprises a second guide post 3i1 and a second guide sleeve 3i2, the second guide sleeve 3i2 is vertically installed on the second rail flat car 3b, the second guide post 3i1 is movably inserted into the second guide sleeve 3i2, and the upper end of the second guide post 3i1 is connected with the bottom surface of the second roller base 3 d.

The maintenance platform is simple and convenient to operate, low in cost and convenient for equipment disassembly and assembly; a maintenance platform is provided for maintenance of the equipment, the equipment can be maintained immediately after being dismantled, the maintenance efficiency is improved, and an additional maintenance platform is not needed, so that the maintenance cost is further reduced; the first guide pillar and guide sleeve 1p is additionally arranged, so that the lifting stability and reliability of the first roller 1g are improved; the sliding direction of the sliding plate bearing seat 1f is designed to be perpendicular to the walking direction of the first rail flat car 1b, so that the position of the first roller 1g can be conveniently adjusted; the central shaft of the first roller 1g is designed to be arranged perpendicular to the traveling direction of the first rail flat car 1b, so that the first roller 1g can be conveniently placed on the metal shell; the groove is designed on the top surface of the sliding plate bearing seat 1f, and the sliding groove bottom plate 1e is arranged in the groove, so that the height of the six-degree-of-freedom trolley 1 can be reduced, and a larger lifting stroke is provided for a lifting structure; the metal shell can be better placed by designing the notch structure into a concave structure consisting of a bottom surface 2e1 and two inclined surfaces 2e 2; the additionally arranged supporting seat 3h improves the stress strength of the second roller 3g, so that the reliability of the maintenance platform is improved, and the service life of the maintenance platform is prolonged; the second guide pillar and guide sleeve 3i is additionally arranged, so that the lifting stability and reliability of the second roller 3g are improved; the groove is designed on the top surface of the second roller base 3d, and the roller shaft 3f is installed in the groove, so that the height of the three-degree-of-freedom trolley 3 can be reduced, and a larger lifting stroke is provided for a lifting structure.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (6)

1. The utility model provides a three degree of freedom platform trucks, its characterized in that, includes second rail (3a), the walking has second track flatcar (3b) on second rail (3a), the both ends of second track flatcar (3b) are equipped with a second hydraulic cylinder (3c) of vertical arrangement respectively, two a second gyro wheel base (3d) is installed to the flexible end of second hydraulic cylinder (3c), but a rotation ground roller shaft (3f) is installed respectively through gyro wheel support (3e) in the top surface both ends of second gyro wheel base (3d), a second gyro wheel (3g) is installed respectively at the both ends of roller shaft (3 f).

2. The three-degree-of-freedom trolley according to claim 1, wherein a support seat (3h) for supporting the roller shaft (3f) is provided on the top surface of the second roller base (3d) at a position corresponding to the middle of the roller shaft (3 f).

3. The three-degree-of-freedom trolley according to claim 1 is characterized in that a second guide post guide sleeve (3i) is respectively arranged between the four corners of the second rail trolley (3b) and the corresponding position of the bottom surface of the second roller base (3 d).

4. A three degree of freedom trolley according to claim 3 characterized in that the second guide post guide sleeve (3i) is arranged vertically.

5. A three-degree-of-freedom trolley according to claim 3, characterized in that the second guide post guide sleeve (3i) comprises a second guide post (3i1) and a second guide sleeve (3i2), the second guide sleeve (3i2) is vertically installed on the second rail flatcar (3b), the second guide post (3i1) is movably inserted into the second guide sleeve (3i2), and the upper end of the second guide post (3i1) is connected with the bottom surface of the second roller base (3 d).

6. The three-degree-of-freedom trolley according to claim 1, wherein the top surface of the second roller base (3d) is provided with a second groove, and the two roller shafts (3f) are respectively installed at both ends of the second groove.