Supporting underframe of single-beam crane

Abstract

The utility model discloses a single-beam crane supporting underframe which comprises a triangular supporting seat located at the bottom of a single-beam crane, a connecting frame is welded to the top of the triangular supporting seat, the single-beam crane is fixedly installed on the top of the connecting frame, and sliding supporting plates are arranged at the three ends of the triangular supporting seat in a penetrating mode. And rectangular sliding grooves matched with the sliding supporting plates are formed in the three ends of the triangular supporting seat correspondingly, a propelling assembly is arranged at the top of the triangular supporting seat, and the propelling assembly comprises a first stepping motor fixedly installed at the bottom of an inner cavity of the connecting frame. The triangular supporting seat and the connecting frame are used in cooperation to support the single-beam crane, meanwhile, the propelling assembly and the sliding supporting plate are used in cooperation to enlarge the contact area between the triangular supporting seat and the ground, and therefore the supporting strength of the triangular supporting seat to the single-beam crane is enhanced; therefore, the purposes of adjustable supporting surface and high supporting stability can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to single beam crane support technical field, in particular, a kind of single beam crane support underframe is related. BACKGROUND

[0002] Single beam crane is also called single beam hoist or cantilever crane, it is a kind of hoisting equipment with single support beam structure, it hoists and loads heavy goods by installing lifting mechanism on cantilever and using the rotation, extension or amplitude of cantilever, this kind of crane structure is simple, and operation is flexible, it is suitable for hoisting and loading / unloading material in limited working space.

[0003] However, single beam crane support underframe is often fixed in support area, it is difficult to adapt to different ground conditions and work load requirements, and on some uneven or soft ground, fixed support area can not provide enough stability, easily lead to crane to shake even tip over in working process, there is greater security risk, therefore, a single beam crane support underframe is needed, which can adjust support surface and has strong support stability, to improve the working performance and safety of single beam crane. SUMMARY

[0004] The utility model aims at providing a kind of single beam crane support underframe, which can adjust support surface and has strong support stability, to improve the working performance and safety of single beam crane, to solve the above technical problems.

[0005] The technical scheme for solving the above technical problems is as follows: a single beam crane support underframe, including the triangular support seat at the bottom of single beam crane: the top of the triangular support seat is welded with connecting frame, the single beam crane is fixedly installed at the top of connecting frame, the three ends of the triangular support seat are all provided with sliding support plate, the three ends of the triangular support seat are all provided with rectangular sliding slot matched with sliding support plate, the top of the triangular support seat is provided with propulsion assembly, the propulsion assembly includes first stepper motor fixedly installed in the inner cavity bottom of connecting frame, the output shaft of the first stepper motor is fixedly connected with driving chain disc, the three ends of the top of the triangular support seat are all provided with rotating column, the top of the surface of rotating column is fixedly connected with stress chain disc, the bottom end of rotating column penetrates to the inner cavity of rectangular sliding slot and is fixedly connected with driving gear, the top of one side of sliding support plate is all welded with rack, the inner cavity of sliding support plate is provided with pulley assembly.

[0006] Preferably, the pulley assembly is rotatably connected in the inner cavity of rectangular sliding slot, and the inner cavity of the pulley bracket is rotatably connected with support wheel.

[0007] Preferably, the inner cavity of the sliding support plate is rotationally connected with a threaded rod through a bearing, one side of the sliding support plate is fixedly provided with a second stepper motor, one end of the threaded rod penetrates to the outside of the sliding support plate and is fixedly connected with the output shaft of the second stepper motor, and the surface of the threaded rod is threadedly connected with a plurality of sliding rods.

[0008] Preferably, the front side and the rear side of the pulley assembly are both provided with an arc-shaped sliding groove, and the sliding rods are slidingly connected in the inner cavities of the arc-shaped sliding grooves.

[0009] Preferably, the driving chain disc and the stressed chain disc are connected through a chain transmission, and the driving gear and the rack are engaged.

[0010] Preferably, both sides of the sliding support plate are welded with limiting guide rails, and both sides of the rectangular sliding groove are provided with limiting sliding grooves matched with the limiting guide rails.

[0011] The utility model discloses the beneficial effect is:

[0012] 1. The utility model discloses the cooperation of triangular support base and connecting frame is used to support single -beam crane, and the cooperation of advancing assembly and sliding support plate expands the contact area of triangular support base and ground, thereby the support strength of triangular support base to single -beam crane is enhanced, the purpose that supporting surface is adjustable and supporting stability is strong can be reached.

[0013] 2. The utility model discloses the cooperation of pulley assembly, wherein the cooperation of pulley frame and supporting wheel makes sliding support plate and ground produce sliding contact, thereby facilitating sliding support plate to slide out of the inner cavity of rectangular sliding groove, and the cooperation of second stepper motor, threaded rod and sliding rod drives the rotation of pulley frame, thereby making supporting wheel can be stored after sliding support plate slides out of the inner cavity of rectangular sliding groove, and the bottom of sliding support plate is in close contact with ground.

[0014] 3. The utility model discloses the cooperation of limiting guide rail and limiting sliding groove, which has the functions of limiting and guiding to sliding support plate, thereby improving the stability of sliding support plate in the sliding process, and improving the connection strength of sliding support plate and triangular support base. BRIEF DESCRIPTION OF DRAWINGS

[0015] Among them:

[0016] Figure 1 It is the front view schematic diagram of one embodiment of the utility model;

[0017] Figure 2 It is the three-dimensional schematic diagram of triangular support base, sliding support plate and advancing assembly of one embodiment of the utility model;

[0018] Figure 3A three-dimensional sectional view of the triangular support seat of one embodiment of the utility model;

[0019] Figure 4 A three-dimensional schematic view of the sliding support plate and the advancing assembly of one embodiment of the utility model;

[0020] Figure 5 A three-dimensional exploded view of the sliding support plate and the pulley assembly of one embodiment of the utility model.

[0021] In the drawings, the components represented by each reference numeral are listed as follows:

[0022] 1, single beam crane, 2, triangular support seat, 3, connecting frame, 4, sliding support plate, 5, rectangular sliding groove, 6, advancing assembly, 61, first stepper motor, 62, drive chain disc, 63, rotating column, 64, force chain disc, 65, drive gear, 66, rack, 7, pulley assembly, 71, pulley frame, 72, support wheel, 73, threaded rod, 74, second stepper motor, 75, sliding rod, 76, arc-shaped sliding groove, 8, limit guide rail, 9, limit sliding groove. DETAILED DESCRIPTION

[0023] In the following, the embodiment of the single beam crane support chassis of the utility model will be described with reference to the drawings.

[0024] Figures 1-5The utility model discloses a single beam crane support chassis of one embodiment shows, including the triangular support seat 2 of single beam crane 1 bottom: the top of triangular support seat 2 is welded with the connecting frame 3, and single beam crane 1 is fixedly installed at the top of connecting frame 3, and the three ends of triangular support seat 2 are all through the sliding support plate 4 of setting, and the three ends of triangular support seat 2 are all set with the rectangular slide groove 5 of adapting with sliding support plate 4, and the both sides of sliding support plate 4 are all welded with the limiting guide rail 8 of adapting with limiting slide groove 9 of the both sides of rectangular slide groove 5, through the cooperation of limiting guide rail 8 and limiting slide groove 9, the limiting and guiding effect of sliding support plate 4 is played to improve the stability of sliding support plate 4 in the sliding process, and the connecting strength of sliding support plate 4 and triangular support seat 2 is improved, and the top of triangular support seat 2 is provided with propulsion assembly 6, and propulsion assembly 6 includes the first step motor 61 of fixed installation in the inner chamber bottom of connecting frame 3, and the output shaft of first step motor 61 is fixedly connected with drive chain disc 62, and the three ends of the top of triangular support seat 2 are all through the rotation column 63 of setting, and the top fixed connection of the surface of rotation column 63 has the stress chain disc 64, and the bottom end of rotation column 63 is fixedly connected with drive gear 65 through the inner chamber of rectangular slide groove 5, and the one side of the top of sliding support plate 4 is all welded with rack 66, and drive chain disc 62 and stress chain disc 64 are connected through chain transmission, and drive gear 65 and rack 66 are engaged, and the inner chamber of sliding support plate 4 is provided with pulley assembly 7, and pulley assembly 7 is rotatably connected in the inner chamber of rectangular slide groove 5 multiple pulley frame 71, and the inner chamber rotatable connection of pulley frame 71 has support wheel 72, and the inner chamber of sliding support plate 4 is rotatably connected with threaded rod 73 through bearing, and the one side of sliding support plate 4 is fixedly installed with second step motor 74, and one end of threaded rod 73 is fixedly connected with the output shaft of second step motor 74 through the outside of sliding support plate 4, and the surface of threaded rod 73 is screw-connected with multiple sliding rods 75, and the front side and rear side of pulley frame 71 are all set with arc slide groove 76, and sliding rod 75 is slidably connected in the inner chamber of arc slide groove 76, through the setting of pulley assembly 7, wherein the cooperation of pulley frame 71 and support wheel 72 makes sliding support plate 4 and ground produce sliding contact, thereby facilitating sliding support plate 4 to slide out in the inner chamber of rectangular slide groove 5, and simultaneously under the drive of second step motor 74, the cooperation of threaded rod 73 and sliding rod 75, the driving rotation effect of pulley frame 71 is played, thereby making support wheel 72 can be stored after sliding support plate 4 slides out the inner chamber of rectangular slide groove 5, and making the bottom of sliding support plate 4 and ground close contact.

[0025] Working principle: the utility model for use, the user will single beam crane 1 moves to the designated use position, then start first step motor 61, first step motor 61 starts and drives chain disc 62 to rotate, drive chain disc 62 in the process of rotation drives three stress chain disc 64 to rotate by chain, stress chain disc 64 in the process of rotation drives drive gear 65 to rotate by rotating column 63, because drive gear 65 and rack 66 are in meshing transmission state, make rack 66 drive sliding support plate 4 to slide, sliding support plate 4 slides from the inner chamber of rectangular slide groove 5, simultaneously support wheel 72 rolls on the ground, after sliding support plate 4 slides in place, second step motor 74 starts and drives threaded rod 73 to rotate, threaded rod 73 in the process of rotation is pushed to multiple sliding rods 75 by its surface thread, make sliding rod 75 extrude the inner wall of arc slide groove 76, make pulley frame 71 with its and rectangular slide groove 5 inner wall connection position as the rotation center rotates, make pulley frame 71 drive support wheel 72 to rotate and store, further make support wheel 72 receive sliding support plate 4's inner chamber, make the bottom of sliding support plate 4 and ground close contact, to realize to single beam crane 1 is supported.

[0026] In conclusion: the single beam crane support chassis, through the cooperation of triangular support seat 2 and connecting frame 3, support single beam crane 1, simultaneously in the cooperation of advancing assembly 6 and sliding support plate 4, expand the contact area of triangular support seat 2 and ground, to enhance the support strength of triangular support seat 2 to single beam crane 1, can reach the purpose that supporting surface is adjustable and supporting stability is strong.

Claims

1. A single beam crane support undercarriage characterized by, The utility model relates to a single -beam crane (1) bottom's triangular support seat (2) is included: the top welding of triangular support seat (2) is connected with the frame (3), single -beam crane (1) fixed mounting is at the top of connected frame (3), the three ends of triangular support seat (2) are all through the sliding support board (4) of setting, the three ends of triangular support seat (2) are all set with the rectangular slide groove (5) of adapting with sliding support board (4), the top of triangular support seat (2) is provided with propulsion assembly (6), propulsion assembly (6) includes the first step motor (61) of fixed mounting in the inner chamber bottom of connected frame (3), the output shaft of first step motor (61) is fixedly connected with drive chain disc (62), the three ends of top of triangular support seat (2) are all through the rotatory post (63) of setting, the top fixedly connected with stress chain disc (64) of rotatory post (63) surface, the bottom of rotatory post (63) is through to the inner chamber of rectangular slide groove (5) and is fixedly connected with drive gear (65), the top of one side of sliding support board (4) is all welded with rack (66), the inner chamber of sliding support board (4) is provided with pulley assembly (7).

2. A single beam crane support undercarriage as claimed in claim 1, characterised in that, The pulley assembly (7) rotationally connects a plurality of pulley frames (71) in the inner chamber of the rectangular slide groove (5), and the inner chamber of the pulley frame (71) rotationally connects a support wheel (72).

3. A single beam crane support undercarriage as claimed in claim 2, characterised in that, The inner chamber of the sliding support plate (4) is rotationally connected to a threaded rod (73) through a bearing, a second step motor (74) is fixedly installed on one side of the sliding support plate (4), one end of the threaded rod (73) penetrates to the outside of the sliding support plate (4) and is fixedly connected to the output shaft of the second step motor (74), and a plurality of sliding rods (75) are threadedly connected to the surface of the threaded rod (73).

4. A single beam crane support undercarriage as claimed in claim 3, characterised in that, The front side and the rear side of the pulley frame (71) are both provided with an arc-shaped slide groove (76), and the sliding rods (75) are slidingly connected in the inner chamber of the arc-shaped slide groove (76).

5. A single beam crane support undercarriage according to claim 4, characterized in that, The drive chain disc (62) and the stress chain disc (64) are connected through a chain transmission, and the drive gear (65) and the rack (66) are engaged.

6. A single beam crane support undercarriage according to claim 5, characterized in that, Limiting guide rails (8) are welded on both sides of the sliding support plate (4), and limiting slide grooves (9) that are adapted to the limiting guide rails (8) are formed on both sides of the rectangular slide groove (5).

Images