Carrying and lifting device for high-pressure straight pipe

Abstract

The utility model relates to a carrying and lifting device for a high-pressure straight pipe, which comprises a door-shaped walking frame, a lifting mechanism, two groups of telescopic mechanisms and two groups of holding fork components, walking wheel groups are respectively arranged at the lower parts of frame bodies at two sides of the walking frame, the lifting mechanism is arranged on the frame body of the walking frame, the two groups of telescopic mechanisms are respectively arranged at two sides inside the walking frame, and the holding fork components are arranged on the two sides of the walking frame. The telescopic ends of the two telescopic mechanisms are close to each other, the two embracing fork assemblies are fixedly connected with the telescopic ends of the two telescopic mechanisms correspondingly, the lifting mechanism is connected and assembled with the two telescopic mechanisms, and the two telescopic mechanisms are used for synchronously driving the two embracing fork assemblies to be close to each other to be staggered, so that the upper portions of the two telescopic mechanisms define a space for supporting the high-pressure straight pipe. Or the two holding fork assemblies are driven to be away from each other. The pipeline lifting device has the advantages that the structural design is reasonable, the pipeline can be lifted from the lower portion of the pipeline to be supported, the lifting effect is achieved, meanwhile, the height can be adjusted through the lifting mechanism, the pipeline is carried through the walking frame, and operation is very easy and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of petroleum instrument production, especially relates to a carrying and hoisting device for high-pressure straight pipe. BACKGROUND

[0002] High-pressure pipelines are generally used for transporting high-pressure gases or liquids such as natural gas and oil. Such pipelines have very high safety requirements and need to use high-strength materials and strict construction standards to ensure safe operation of the pipelines.

[0003] At present, there is a need to hoist or carry the pipeline during the production, transportation or on-site construction of high-pressure pipelines. However, the existing hoisting and carrying devices mostly use a two-side clamping method, which has a limited carrying capacity. In addition, the two-side clamping method requires the pipeline to be at an appropriate height for operation, which has great limitations.

[0004] Therefore, there is a need to develop a carrying and hoisting device for high-pressure straight pipe to overcome the above technical problems. SUMMARY

[0005] The utility model solves the technical problem of providing a carrying and hoisting device for high-pressure straight pipe, which effectively overcomes the defects of the prior art.

[0006] The technical solution to solve the above technical problem is as follows:

[0007] A carrying and hoisting device for high-pressure straight pipe, comprising a portal-shaped walking frame, a lifting mechanism, two sets of telescopic mechanisms and two sets of clamping fork assemblies. The lower part of the frame body on both sides of the walking frame is provided with a set of walking wheels. The lifting mechanism is mounted on the frame body of the walking frame. The two sets of telescopic mechanisms are arranged on both sides of the walking frame inside. The telescopic ends of the two sets of telescopic mechanisms are close to each other. The two sets of clamping fork assemblies are connected and fixed with the telescopic ends of the two sets of telescopic mechanisms. The lifting mechanism is connected and assembled with the two sets of telescopic mechanisms. The two sets of telescopic mechanisms are used to synchronously drive the two sets of clamping fork assemblies to approach each other to stagger, so as to define a space above the two sets of clamping fork assemblies for supporting the high-pressure straight pipe, or to drive the two sets of clamping fork assemblies to move away from each other.

[0008] On the basis of the above technical solution, the utility model can also be improved as follows.

[0009] Further, the above-mentioned fork assembly comprises a fixing frame, a crossbeam and a plurality of fork bars, the crossbeam is fixed to the lower end of the fixing frame, the plurality of fork bars are arranged in a row at intervals and are respectively fixed to the lower end of the crossbeam, the crossbeams of the two groups of fork assemblies are distributed in parallel, the fork bars of the two groups of fork assemblies respectively extend obliquely downward toward each other and are distributed in a staggered manner in the length direction of the crossbeam, the fixing frame is connected and fixed with the corresponding telescopic mechanism, and the two groups of telescopic mechanisms are used to drive the fork assemblies to approach each other to the lower ends of the plurality of fork bars.

[0010] Further, the above-mentioned telescopic mechanism comprises a telescopic oil cylinder and a fixing plate, the telescopic oil cylinder is mounted on the fixing plate, and one end of the fixing plate is connected and assembled with the lifting mechanism.

[0011] Further, the inner sides of the two side frame bodies of the walking frame are respectively provided with two vertically extending slide rails, one end of the fixing plate is provided with a vertical connecting plate, and the connecting plate is slidably connected with the slide rails one by one through a sliding seat.

[0012] Further, the above-mentioned lifting mechanism comprises two lead screws, a transmission shaft and a rotary driving mechanism, the two lead screws are respectively vertically rotatably mounted in the two side frame bodies of the walking frame, a nut is respectively screwed on each of the two lead screws, the transmission shaft is horizontally rotatably mounted in the inner part of the two end frame bodies of the walking frame, first bevel gears are respectively mounted at the two ends of the transmission shaft, the upper ends of the two lead screws are respectively mounted on second bevel gears which are in meshing correspondence with the first bevel gears, the rotary driving mechanism is mounted on the upper end frame body of the walking frame and is connected with the transmission shaft for driving the transmission shaft to rotate, and the telescopic mechanism is connected and assembled with the nut.

[0013] Further, the above-mentioned rotary driving mechanism comprises a motor, a driving gear and a driven gear which are respectively mounted on the main shaft of the motor and the transmission shaft and are in meshing correspondence.

[0014] Further, the walking wheel set comprises at least two walking wheels.

[0015] Further, the two ends of the walking frame are respectively provided with lifting positioning mechanisms, the lifting positioning mechanism comprises a lifting device and a positioning head, the lower end of the lifting device is connected with the positioning head, and the lifting device is used to drive the positioning head to move up and down.

[0016] Further, the positioning head comprises a circular arc-shaped positioning plate and a rubber pad, the positioning plate is open downward, and the rubber pad is mounted on the lower surface of the positioning plate.

[0017] Further, any one end or both ends of the two side frame bodies of the walking frame are provided with handrails.

[0018] The utility model discloses a beneficial effect is: the structure design is reasonable, can from the lower part of pipeline hold up pipeline and give support, form the effect of hoisting, simultaneously, utilize lifting mechanism can adjust height, and utilize walking frame to carry pipeline, operation is very simple, convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic diagram of the high -pressure straight -pipe carrying hoist device of the utility model;

[0020] Figure 2 It is the structure schematic diagram of the high -pressure straight -pipe carrying hoist device of the utility model.

[0021] In the drawings, the component list of each sign represented is as follows:

[0022] 1, walking frame;2, lifting mechanism;3, telescopic mechanism;4, embrace fork subassembly;5, lifting positioning mechanism;11, walking wheel group;21, screw rod;22, transmission shaft;23, rotary drive mechanism;31, telescopic oil cylinder;32, fixed plate;41, fixed frame;42, crossbeam;43, fork strip;51, lifting device;52, positioning head;211, second bevel gear;221, first bevel gear;321, connecting plate;521, positioning plate;522, rubber pad. SPECIFIC EMBODIMENT

[0023] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and are not used to limit the scope of the utility model.

[0024] EMBODIMENT

[0025] As Figure 1 And 2 The high -pressure straight -pipe carrying hoist device of the utility model includes the walking frame 1 of door type, lifting mechanism 2, two telescopic mechanisms 3 and two embrace fork subassembly 4, the lower part of the frame body of the walking frame 1 both sides is equipped with walking wheel group 11, the lifting mechanism 2 is installed on the frame body of the walking frame 1, two telescopic mechanisms 3 are arranged in the both sides inside the walking frame 1, and the telescopic ends of the two are close to each other, two embrace fork subassembly 4 are connected and fixed with the telescopic ends of two telescopic mechanisms 3, the lifting mechanism 2 is connected and assembled with two telescopic mechanisms 3, and two telescopic mechanisms 3 are used to drive two embrace fork subassembly 4 to close to each other to stagger, so that the upper part of the two defines the space of supporting high -pressure straight -pipe, or drive two embrace fork subassembly 4 to be far away from each other.

[0026] The high-pressure straight pipe carrying and lifting device of the embodiment is used to move the walking frame 1 to the target pipe position through the walking wheels 11 at the lower end, and to place the two groups of fork assemblies 4 at the two sides (the two sides in the long axis direction) of the pipe. Next, the height of the two groups of fork assemblies 4 is adjusted by operating the lifting mechanism 2 until the fork assemblies 4 are at a height position at which the pipe can be lifted from the lower fork. Next, the two groups of telescopic mechanisms 3 are synchronously extended to relatively move the two groups of fork assemblies 4 close to each other and to jointly fork the pipe from the two sides. In use, one or more pipes can be forked as needed, then the fork assemblies 4 are lifted by the lifting mechanism 2, and finally the forked pipe is transferred to the target position by the mobility of the walking frame 1. Overall, the structure is reasonably designed, the pipe can be supported and lifted from the lower part of the pipe to form a lifting effect, the height can be adjusted by the lifting mechanism, and the pipe can be carried by the walking frame, which is very simple and convenient to operate.

[0027] As a preferred embodiment, as shown in Figure 2 The fork assembly 4 includes a fixed frame 41, a cross beam 42, and a plurality of fork bars 43. The cross beam 42 is fixed to the lower end of the fixed frame 41, and the plurality of fork bars 43 are arranged in a row at intervals and are respectively fixed to the lower end of the cross beam 42. The cross beams 42 of the two groups of fork assemblies 4 are distributed in parallel, the fork bars 43 of the two groups of fork assemblies 4 respectively extend obliquely downward toward each other and are staggered in the length direction of the cross beam 42. The fixed frame 41 is connected and fixed with the corresponding telescopic mechanism 3, and the two groups of telescopic mechanisms 3 are used to drive the fork assemblies 4 to move close to each other to the lower ends of the fork bars 43.

[0028] In the above embodiment, when the two groups of fork assemblies 4 relatively move close to each other under the drive of the two groups of telescopic mechanisms 3, the fork bars 43 of the two groups of fork assemblies 4 move close to each other and the lower ends are staggered and fitted with each other, thereby defining a “V”-shaped area between the upper parts of the two rows of fork bars 43, and the pipe is located in the area. More specifically, in the operation process, the lower ends of the two rows of fork bars 43 relatively move close to each other from the two sides of the pipe, thereby lifting the pipe upward to achieve “forking”, which is a very ingenious design.

[0029] As a preferred embodiment, the telescopic mechanism 3 includes a telescopic oil cylinder 31 and a fixed plate 32. The telescopic oil cylinder 31 is mounted on the fixed plate 32, and one end of the fixed plate 32 is connected and assembled with the lifting mechanism 2.

[0030] In the above embodiment, the fixed plate 32 is designed to facilitate the assembly of the telescopic oil cylinder 31, and the telescopic oil cylinder 31 has relatively stable telescopic performance, thereby enabling the two rows of fork bars 43 to stably “fork” the pipe.

[0031] In the embodiment, the inner sides of the two side frame bodies of the walking frame 1 are respectively provided with two vertically extending slide rails, one end of the fixing plate 32 is provided with a vertical connecting plate 321, and the connecting plate 321 is in sliding connection with the slide rails one by one through a slide seat. The cooperation of the slide rails and the slide seat enables the telescopic mechanism 3 to be stably and slidingly assembled on the two side frame bodies of the walking frame 1, and the operation is relatively stable during the height adjustment process.

[0032] As a preferred embodiment, the lifting mechanism 2 comprises two lead screws 21, a transmission shaft 22 and a rotary driving mechanism 23. The two lead screws 21 are respectively vertically rotatably arranged in the two side frame bodies of the walking frame 1, and a nut is respectively screwed on each of the lead screws 21. The transmission shaft 22 is horizontally rotatably arranged in the inner part of the two end frame bodies of the walking frame 1, and a first bevel gear 221 is arranged at each end of the transmission shaft 22. The upper ends of the two lead screws 21 are respectively arranged in second bevel gears 211 which are in meshing connection with the first bevel gears 221. The rotary driving mechanism 23 is arranged at the upper end frame body of the walking frame 1 and is connected with the transmission shaft 22, and is used to drive the transmission shaft 22 to rotate. The telescopic mechanism 3 is connected and assembled with the nut.

[0033] In the embodiment, the rotary driving mechanism 23 drives the transmission shaft 22 to rotate, so that the first bevel gears 221 at the two ends of the transmission shaft 22 drive the second bevel gears 211 which are in meshing connection with the first bevel gears 221 to rotate, so as to realize the rotation of the two lead screws 21. During the rotation of the two lead screws 21, the nut screwed thereon moves up and down relative to the lead screw 21, so as to realize the stable up and down movement of the telescopic mechanism 3. The driving structure is designed to be relatively ingenious, and one power source can realize the synchronous lifting of the two telescopic mechanisms 3.

[0034] It should be noted that the nut is connected and fixed with the connecting plate 321 in the telescopic mechanism 3.

[0035] In the embodiment, the rotary driving mechanism 23 comprises a motor, and a driving gear and a driven gear which are in meshing connection are respectively arranged on the main shaft of the motor and the transmission shaft 22. The rotation of the motor can drive the driving gear and the driven gear which are in meshing connection to rotate, so as to realize the stable rotation of the transmission shaft 22.

[0036] In the embodiment, the walking wheel set 11 comprises at least two walking wheels.

[0037] The walking wheel can adopt an existing hub motor on the market, and is connected with a storage power source and a controller.

[0038] As a preferred embodiment, the walking frame 1 is provided with lifting positioning mechanisms 5 at two ends thereof, the lifting positioning mechanism 5 comprises a lifting device 51 and a positioning head 52, the lower end of the lifting device 51 is connected to the positioning head 52, and the lifting device 51 is used to drive the positioning head 52 to move up and down.

[0039] In the above embodiment, the pipe is shaken by external force due to the pipe being lifted by the two groups of fork assemblies 4, therefore, the lifting positioning mechanisms 5 are arranged at two ends of the walking frame 1 to realize positioning of the pipe, specifically, the positioning head 52 is driven to move downward by the lifting device 51, so that the positioning head 52 can be “pressed” on the upper portion of the pipe, and the pipe is stably lifted and carried by cooperating with the upward lifting action of the fork assemblies 4.

[0040] In the embodiment, the positioning head 52 comprises a circular arc-shaped positioning plate 521 and a rubber pad 522, the positioning plate 521 is downwardly opened, and the rubber pad 522 is arranged on the lower surface of the positioning plate 521, so that the pipe can be more tightly pressed by the rubber pad 522, and the positioning effect is better.

[0041] In the embodiment, the walking frame 1 is provided with handrails at any one end or both ends of the side frame bodies, so that the moving direction of the walking frame 1 can be adjusted by holding the handrails.

[0042] In the embodiment, the fork 43 of the connecting plate 321 is a straight strip-shaped component, and the surface is smooth and round, so that the pipe is less damaged when the pipe is forked, and of course, the surface of the fork 43 can be coated with a flexible material to reduce the scratches on the pipe as much as possible.

[0043] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0044] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply any relative importance or any meaning pertaining to the quantity of the features being described. Thus, a feature defined with "first", "second", etc. can include at least one of the features, explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless specifically defined otherwise.

[0045] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connection", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is lower than that of the second feature.

[0047] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0048] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A handling and hoisting device for high pressure straight pipes, characterized in that: The application relates to a walking frame (1) comprising a door type walking frame (1), a lifting mechanism (2), two groups of telescopic mechanisms (3) and two groups of embracing fork assemblies (4), the lower parts of the two side frame bodies of the walking frame (1) are respectively provided with walking wheel groups (11), the lifting mechanism (2) is arranged on the frame body of the walking frame (1), the two groups of telescopic mechanisms (3) are arranged on the two sides of the walking frame (1) and are close to each other, the two groups of embracing fork assemblies (4) are respectively connected and fixed with the telescopic ends of the two groups of telescopic mechanisms (3), the lifting mechanism (2) is connected and assembled with the two groups of telescopic mechanisms (3), the two groups of telescopic mechanisms (3) are used for synchronously driving the two groups of embracing fork assemblies (4) to be close to each other and staggered, so that the upper parts of the two groups of embracing fork assemblies (4) define a space for supporting high-pressure straight pipes, or the two groups of embracing fork assemblies (4) are driven to be far away from each other.

2. A handling and hoisting device for high pressure straight pipes according to claim 1, characterized in that: The embracing fork assembly (4) comprises a fixing frame (41), a cross beam (42) and a plurality of fork strips (43), the cross beam (42) is fixed to the lower end of the fixing frame (41), the plurality of fork strips (43) are arranged in a row at intervals and are respectively fixed to the lower end of the cross beam (42), the cross beams (42) of the two groups of embracing fork assemblies (4) are distributed in parallel, the fork strips (43) of the two groups of embracing fork assemblies (4) respectively extend obliquely downward towards each other and are staggered in the length direction of the cross beam (42), the fixing frame (41) is connected and fixed with the corresponding telescopic mechanism (3), and the two groups of telescopic mechanisms (3) are used for driving the embracing fork assemblies (4) to be close to each other and staggered at the lower ends of the plurality of fork strips (43).

3. A handling and hoisting device for high pressure straight pipes according to claim 1, characterized in that: The telescopic mechanism (3) comprises a telescopic oil cylinder (31) and a fixing plate (32), the telescopic oil cylinder (31) is arranged on the fixing plate (32), and one end of the fixing plate (32) is connected and assembled with the lifting mechanism (2).

4. A handling and hoisting device for high pressure straight pipes according to claim 3, characterized in that: The inner sides of the two side frame bodies of the walking frame (1) are respectively provided with two vertically-extending slide rails, one end of the fixing plate (32) is provided with a vertical connecting plate (321), and the connecting plate (321) is slidably connected with the slide rails one by one through slide seats.

5. The high pressure straight pipe handling and hoisting device according to claim 1, characterized in that: The lifting mechanism (2) comprises two lead screws (21), a transmission shaft (22) and a rotary driving mechanism (23), the two lead screws (21) are respectively arranged vertically and rotatably in the two side frame bodies of the walking frame (1), the lead screws (21) are respectively provided with nuts, the transmission shaft (22) is arranged horizontally and rotatably in the two end frame bodies of the walking frame (1), the two ends of the transmission shaft (22) are respectively provided with first bevel gears (221), the upper ends of the lead screws (21) are respectively arranged in second bevel gears (211) corresponding to the first bevel gears (221), the rotary driving mechanism (23) is arranged on the upper end frame body of the walking frame (1) and is connected with the transmission shaft (22) and used for driving the transmission shaft (22) to rotate, and the telescopic mechanism (3) is connected and assembled with the nut.

6. A handling and hoisting device for high pressure straight pipes according to claim 5, characterized in that: The rotating driving mechanism (23) comprises a motor, a main shaft of the motor, and a driving shaft (22) respectively provided with a driving gear and a driven gear which are engaged with each other.

7. A high pressure straight pipe handling and hoisting device according to claim 1, characterized in that: The walking wheel set (11) comprises at least two walking wheels.

8. A high pressure straight pipe handling and hoisting device according to claim 1, characterized in that: Two ends of the walking frame (1) are respectively provided with lifting positioning mechanisms (5), each of which comprises a lifting device (51) and a positioning head (52), the lower end of the lifting device (51) is connected to the positioning head (52), and the lifting device (51) is used to drive the positioning head (52) to move up and down.

9. A high pressure straight pipe handling and hoisting device according to claim 8, characterized in that: The positioning head (52) comprises a circular-arc-shaped positioning plate (521) and a rubber pad (522), the positioning plate (521) is downwardly open, and the rubber pad (522) is arranged on the lower surface of the positioning plate (521).

10. A handling and hoisting device for high pressure straight pipes according to any one of claims 1 to 9, characterized in that: Any one end or both ends of the side frame bodies of the walking frame (1) are provided with handrails.

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