CN220827152U

CN220827152U - Movable gantry truss

Info

Publication number: CN220827152U
Application number: CN202322156174.4U
Authority: CN
Inventors: 胡晓莉; 张君玉; 陆凯
Original assignee: Suzhou Xiexi Intelligent Technology Co ltd
Current assignee: Suzhou Xiexi Intelligent Technology Co ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-04-23
Anticipated expiration: 2033-08-11

Abstract

The utility model relates to the technical field of portal frames, in particular to a movable portal truss, which comprises a portal frame body, wherein the lower part of the portal frame body is fixedly connected with a bottom plate vertical to the portal frame body, the insides of two ends of the bottom plate are sleeved with telescopic plates, the insides of the bottom plate are fixedly connected with first bearing seats, the first bearing seats are rotationally connected with bidirectional screws, the bidirectional screws are in threaded connection with the insides of the telescopic plates, and a first driving device for driving the bidirectional screws to rotate is arranged outside the bottom plate. After the portal frame rises, the bottom of the portal frame can be telescopically adjusted, the contact area is changed, the portal frame is prevented from toppling over, and the stability is improved.

Description

Movable gantry truss

Technical Field

The utility model relates to the technical field of portal frames, in particular to a movable portal truss.

Background

In daily production, because of the need of carrying equipment, warehouse goods entering and exiting and material transportation, the developed hoisting portal frame realizes hoisting mechanization, can reduce manpower, reduce production operation cost and improve work.

Because the gantry has a height adjusting function because of the lifting requirement, a gantry for a cutting machine is disclosed in a prior patent publication CN 21766778, which has a height adjusting function, but the gravity center of the gantry is also changed along with the lifting of the gantry, and the contact area of the bottom of the gantry is unchanged, so that the gantry is possible to topple, and the application provides a movable gantry truss.

Disclosure of utility model

The utility model aims to provide a movable gantry truss, the bottom of which can be telescopically adjusted after the gantry is lifted, the contact area is changed, the toppling is prevented, and the stability is improved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the movable gantry truss comprises a gantry body, wherein the lower part of the gantry body is fixedly connected with a bottom plate vertical to the gantry body, telescopic plates are sleeved inside two ends of the bottom plate, a first bearing seat is fixedly connected inside the bottom plate, a bidirectional screw is rotatably connected to the first bearing seat, the bidirectional screw is in threaded connection with the inside of the telescopic plates, and a first driving device for driving the bidirectional screw to rotate is arranged outside the bottom plate; the upper portion of expansion plate rotates and is connected with the sleeve, telescopic inside cover is equipped with the loop bar, the upper portion of loop bar rotates with the side of portal frame body and is connected.

Optionally, the first driving device comprises a first motor fixedly connected to the outside of the bottom plate, the output end of the first motor is fixedly connected with a first bevel gear, a second bevel gear is fixedly connected to the bidirectional screw, and the second bevel gear is meshed with the first bevel gear.

Optionally, the lower part of expansion plate fixedly connected with gyro wheel.

Optionally, the inboard upper portion cover of portal frame body is equipped with the lifter, the inboard lower part fixedly connected with second bearing frame of portal frame body, rotate on the second bearing frame and be connected with the unidirectional screw, the upper portion of unidirectional screw and the inside threaded connection of lifter, the outside of portal frame body is provided with the second drive arrangement that is used for driving unidirectional screw pivoted.

Optionally, the second driving device comprises a second motor fixedly connected to the outside of the portal frame body, the output end of the second motor is fixedly connected with a third bevel gear, the lower part of the unidirectional screw is fixedly connected with a fourth bevel gear, and the fourth bevel gear is meshed with the third bevel gear.

Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, after the portal frame is lifted, the bottom of the portal frame can be telescopically adjusted, the contact area is changed, the portal frame is prevented from toppling over, and the stability is improved.

Drawings

FIG. 1 is a schematic side view of a gantry of the present utility model;

FIG. 2 is a schematic cross-sectional structural view of a base plate of the present utility model;

fig. 3 is a schematic sectional view of a gantry body according to the present utility model.

In the figure: 1. a gantry body; 2. a bottom plate; 3. a telescoping plate; 4. a first bearing seat; 5. a bidirectional screw; 6. a first motor; 7. a first bevel gear; 8. a second bevel gear; 9. a roller; 10. a sleeve; 11. a loop bar; 12. a lifting rod; 13. a second bearing seat; 14. a unidirectional screw; 15. a second motor; 16. a third bevel gear; 17. and a fourth bevel gear.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, an embodiment of the present utility model provides a mobile gantry truss, which includes a gantry body 1, a bottom plate 2 perpendicular to the gantry body 1 is fixedly connected to the lower portion of the gantry body 1, two ends of the bottom plate 2 are internally sleeved with a telescopic plate 3, a first bearing seat 4 is fixedly connected to the inside of the bottom plate 2, a bidirectional screw 5 is rotatably connected to the first bearing seat 4, the bidirectional screw 5 is in threaded connection with the inside of the telescopic plate 3, and a first driving device for driving the bidirectional screw 5 to rotate is arranged outside the bottom plate 2.

Specifically, the first driving device comprises a first motor 6 fixedly connected to the outside of the bottom plate 2, the output end of the first motor 6 is fixedly connected with a first bevel gear 7, a second bevel gear 8 is fixedly connected to the bidirectional screw 5, the second bevel gear 8 is meshed with the first bevel gear 7, after the first motor 6 is started, the bidirectional screw 5 is driven to rotate through the meshing of the bevel gears, and then the two expansion plates 3 at two ends of the bottom plate 2 are driven to move in opposite directions or move in opposite directions, especially after the height of the gantry frame is raised, in order to prevent the gravity center change from causing side tilting, the two expansion plates 3 move in opposite directions, so that the contact area with the ground can be increased, and the stability is improved.

Further, the lower part fixedly connected with gyro wheel 9 of expansion plate 3 makes this portal frame can conveniently remove.

Further, the upper portion of expansion plate 3 rotates and is connected with sleeve 10, and sleeve 10's inside cover is equipped with loop bar 11, and the upper portion of loop bar 11 rotates with the side of portal frame body 1 to be connected, and sleeve 10 and loop bar 11 can also take place to stretch out and draw back along with expansion plate 3, can improve the intensity that the portal frame side was carried, further prevents to roll.

Further, the lifting rod 12 is sleeved on the upper portion of the inner side of the portal frame body 1, the second bearing seat 13 is fixedly connected to the lower portion of the inner side of the portal frame body 1, the unidirectional screw 14 is rotationally connected to the second bearing seat 13, the upper portion of the unidirectional screw 14 is in threaded connection with the inner side of the lifting rod 12, and a second driving device for driving the unidirectional screw 14 to rotate is arranged on the outer portion of the portal frame body 1.

Specifically, the second driving device comprises a second motor 15 fixedly connected to the outside of the portal frame body 1, a third bevel gear 16 is fixedly connected to the output end of the second motor 15, a fourth bevel gear 17 is fixedly connected to the lower portion of the unidirectional screw 14, the fourth bevel gear 17 is meshed with the third bevel gear 16, the unidirectional screw 14 is driven to rotate through the meshing of the bevel gears after the second motor 15 is started, and then the lifting rod 12 is driven to rise or descend, so that the height of the portal frame is adjusted.

It is to be understood that the above description is intended to be illustrative, and that the embodiments of the present application are not limited thereto.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a portable longmen truss, includes portal frame body (1), its characterized in that: the two-way lifting device is characterized in that a bottom plate (2) perpendicular to the bottom plate is fixedly connected to the lower part of the portal frame body (1), telescopic plates (3) are sleeved inside two ends of the bottom plate (2), a first bearing seat (4) is fixedly connected to the inside of the bottom plate (2), a two-way screw (5) is rotatably connected to the first bearing seat (4), the two-way screw (5) is in threaded connection with the inside of the telescopic plates (3), and a first driving device for driving the two-way screw (5) to rotate is arranged outside the bottom plate (2); the telescopic device is characterized in that the upper part of the telescopic plate (3) is rotationally connected with a sleeve (10), a sleeve rod (11) is sleeved in the sleeve (10), and the upper part of the sleeve rod (11) is rotationally connected with the side face of the portal frame body (1).

2. A mobile gantry truss as defined in claim 1 wherein: the first driving device comprises a first motor (6) fixedly connected to the outside of the bottom plate (2), a first bevel gear (7) is fixedly connected to the output end of the first motor (6), a second bevel gear (8) is fixedly connected to the bidirectional screw (5), and the second bevel gear (8) is meshed with the first bevel gear (7).

3. A mobile gantry truss as defined in claim 1 wherein: the lower part of the expansion plate (3) is fixedly connected with a roller (9).

4. A mobile gantry truss as defined in claim 1 wherein: the lifting rod (12) is sleeved on the upper portion of the inner side of the portal frame body (1), a second bearing seat (13) is fixedly connected to the lower portion of the inner side of the portal frame body (1), a unidirectional screw (14) is rotationally connected to the second bearing seat (13), the upper portion of the unidirectional screw (14) is in threaded connection with the inner side of the lifting rod (12), and a second driving device for driving the unidirectional screw (14) to rotate is arranged outside the portal frame body (1).

5. The mobile gantry truss of claim 4 wherein: the second driving device comprises a second motor (15) fixedly connected to the outside of the portal frame body (1), a third bevel gear (16) is fixedly connected to the output end of the second motor (15), a fourth bevel gear (17) is fixedly connected to the lower portion of the unidirectional screw (14), and the fourth bevel gear (17) is meshed with the third bevel gear (16).