CN219885513U - Bridge crane - Google Patents

Abstract

The utility model provides a bridge crane, which belongs to the technical field of hoisting machinery and comprises a bridge frame, wherein a crane trolley is arranged on the bridge frame, travelling mechanisms are arranged at two ends of the lower surface of the bridge frame, each travelling mechanism comprises a first mounting frame and travelling wheels symmetrically arranged at two sides of the first mounting frame, the first mounting frame is fixed on the bridge frame, connecting rods are arranged between the first mounting frame and the travelling wheels, one ends of the connecting rods are hinged with the first mounting frame, the other ends of the connecting rods are in rotary connection with the travelling wheels at the same side of the connecting rods, gears are fixedly arranged at the ends of the two connecting rods, which are close to the first mounting frame, and the two gears are meshed, wherein a first driving mechanism is connected to the connecting rod at one side, and drives the connecting rod at the side to rotate around the first mounting frame so as to enable the two travelling wheels to be close to or far away from each other. The bridge crane provided by the utility model has a simple structure, and the applicability of the device is improved by adjusting the maximum lifting height.

Description

Bridge crane

Technical Field

The utility model belongs to the technical field of hoisting machinery, and particularly relates to a bridge crane.

Background

The bridge crane is hoisting equipment for hoisting materials in workshops, warehouses and stock yards. The two ends of the bridge are arranged on a high cement column or a metal bracket in a bridge-like shape, so the bridge-like bridge crane is also called a crown block or a travelling crane. The bridge frame of the bridge crane longitudinally runs along the tracks paved on the two side high frames, and the lifting trolley transversely runs along the tracks paved on the bridge frame to form a rectangular working range, so that the space below the bridge frame can be fully utilized to hoist materials, and the space is not blocked by ground equipment. The hoisting machine has the advantages of being the hoisting machine with the widest application range and the largest number.

The traditional bridge crane is fixed due to the fact that the track height of the traditional bridge crane is fixed after installation is completed, so that the maximum lifting height of the traditional bridge crane is fixed, and when special conditions are met, such as that a workpiece to be lifted is high and large, the traditional bridge crane is limited by the maximum lifting height of the traditional bridge crane, the workpiece cannot be lifted away from the bottom surface to be transferred, and inconvenience is brought to work.

Disclosure of Invention

The utility model aims to provide a bridge crane, and aims to solve the problems that the maximum lifting height of the traditional bridge crane is fixed and cannot be adjusted.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a bridge crane, including the crane span structure, be provided with the hoist dolly above the crane span structure, the below both ends of crane span structure all are equipped with running gear, running gear includes first mounting bracket and symmetry are located the walking wheel of first mounting bracket both sides, first mounting bracket is fixed on the crane span structure, first mounting bracket with all be equipped with the connecting rod between the walking wheel, connecting rod one end with first mounting bracket articulates, the other end rather than homonymy the walking wheel rotates to be connected, two the connecting rod is close to the tip of first mounting bracket has all set firmly the gear, and two the gear meshes, wherein one side be connected with first actuating mechanism on the connecting rod, first actuating mechanism drives this side the connecting rod is around first mounting bracket rotates for make two the walking wheel is close to or keeps away from each other.

In a possible implementation manner, the bridge frame is further provided with a second mounting frame corresponding to the first mounting frame, the second mounting frame is located on the inner side of the first mounting frame, the second mounting frame comprises a longitudinal rod and a transverse rod connected to the lower end of the longitudinal rod, the longitudinal rod penetrates through the bridge frame and is in sliding connection with the bridge frame, a first sliding groove is formed in the transverse rod, the connecting rod is in sliding connection with the first sliding groove, a first driving mechanism is fixed on the transverse rod, and the driving end of the first driving mechanism is connected with the connecting rod on one side and used for driving the connecting rod on the other side to slide in the first sliding groove.

In one possible implementation, the upper end of the vertical rod is provided with an expansion block for preventing the vertical rod from being separated from the bridge.

In one possible implementation manner, the connecting rod is located in the outside of the first mounting frame, a first connecting shaft is arranged at the end part, close to the first mounting frame, of the connecting rod, the first connecting shaft is perpendicular to the rotation plane of the connecting rod, the gear is connected to the first connecting shaft and located in the outside of the connecting rod, and one end, far away from the gear, of the first connecting shaft penetrates through the first mounting frame inwards and is connected with the first mounting frame in a rotating mode.

In one possible implementation manner, a second sliding groove is longitudinally formed in the longitudinal rod corresponding to the first connecting shaft, and the first connecting shaft penetrates through one end of the first mounting frame, extends into the second sliding groove, and is in sliding connection with the second sliding groove.

In a possible implementation manner, the connecting rod is kept away from the one end of first mounting bracket is equipped with the connecting axle sleeve, connecting axle sleeve perpendicular to the plane of rotation of connecting rod, connecting axle sleeve slides and sets up in the first spout, wear to be equipped with the installation axle in the connecting axle sleeve, just the installation axle with connecting axle sleeve rotates to be connected, the walking wheel is connected on the installation axle, and is located the outside of connecting rod, connecting axle sleeve keeps away from the one end of walking wheel extends to the inboard of horizontal pole, the inboard of horizontal pole is located one of them the both sides interval of installation axle is equipped with the support, two rotate between the support and be connected with the lead screw, the lead screw runs through the installation axle, and with installation axle threaded connection, first actuating mechanism is including installing one of them the first motor of support one side, the drive end of first motor with lead screw drive connection.

In one possible implementation manner, the travelling wheel comprises a first wheel body and a second wheel body, the mounting shaft comprises a first shaft body and a second shaft body, the first shaft body is rotationally connected with the first wheel body, the second shaft body is rotationally connected with the second wheel body, the screw rod is in threaded connection with the first shaft body, and one end, away from the second wheel body, of the second shaft body is connected with a second motor.

In one possible implementation manner, a mounting plate is arranged on the connecting shaft sleeve at one side of the second shaft body, the mounting plate is positioned at the inner side of the cross rod, the second motor is mounted on the mounting plate, and the second shaft body penetrates through the mounting plate to be connected with the driving end of the second motor.

In one possible implementation manner, the number of the running mechanisms at each end of the bridge is two, and the two running mechanisms are symmetrically arranged.

In one possible implementation, two of the crossbars are integral.

The bridge crane provided by the utility model has the beneficial effects that: compared with the prior art, the travelling mechanism below the bridge comprises the first mounting frame and the travelling wheels symmetrically arranged on two sides of the first mounting frame, the two travelling wheels are hinged with the first mounting frame through the connecting rods, the end part of each connecting rod, which is close to the first mounting frame, is provided with the gears, the two gears are meshed, so that the two travelling wheels form linkage, one of the connecting rods is connected through the first driving mechanism, the two travelling wheels are driven to rotate around the first mounting frame, the two travelling wheels are close to or far away from each other, the height of the upper end face of the bridge from the ground is adjusted, and the maximum lifting height is adjusted, so that the bridge crane is suitable for lifting workpieces with different specifications.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a top view of a bridge crane according to an embodiment of the present utility model;

fig. 2 is a front view of a bridge crane according to an embodiment of the present utility model;

FIG. 3 is a left side view of a bridge crane according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 6 is a cross-sectional view taken along line C-C of FIG. 3;

fig. 7 is a sectional view of the structure taken along the line D-D in fig. 6.

Reference numerals illustrate:

1. a bridge; 2. a crane trolley; 3. a walking mechanism; 31. a first mounting frame; 32. a connecting rod; 3201. a gear; 3202. a first connecting shaft; 321. a first rod body; 3211. a first sleeve; 3212. a first shaft body; 322. a second rod body; 3221. a second sleeve; 3222. a second shaft body; 3223. a mounting plate; 33. a walking wheel; 331. a first wheel body; 332. a second wheel body; 4. a second mounting frame; 41. a longitudinal bar; 411. expanding the block; 412. a second chute; 42. a cross bar; 421. a first chute; 51. a first motor; 52. a screw rod; 53. a bracket; 6. and a second motor.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 6, a bridge crane according to the present utility model will now be described. A bridge crane, including crane span structure 1, be provided with crane trolley 2 above the crane span structure 1, the below both ends of crane span structure 1 all are equipped with running gear 3, running gear 3 includes first mounting bracket 31 and symmetry locates the walking wheel 33 of first mounting bracket 31 both sides, first mounting bracket 31 is fixed on crane span structure 1, all be equipped with connecting rod 32 between first mounting bracket 31 and the walking wheel 33, connecting rod 32 one end articulates with first mounting bracket 31, the other end is connected rather than the walking wheel 33 rotation of homonymy, the tip that two connecting rods 32 are close to first mounting bracket 31 has all set firmly gear 3201, and two gears 3201 mesh mutually, be connected with first actuating mechanism on the connecting rod 32 of one of them side, the connecting rod 32 of this side of first actuating mechanism drive is rotated around first mounting bracket 31 for make two walking wheels 33 be close to each other or keep away from.

Compared with the prior art, the travelling mechanism 3 below the bridge frame 1 comprises a first mounting frame 31 and travelling wheels 33 symmetrically arranged on two sides of the first mounting frame 31, the two travelling wheels 33 are hinged with the first mounting frame 31 through the connecting rods 32, the end part of each connecting rod 32 close to the first mounting frame 31 is provided with the gear 3201, the two gears 3201 are meshed, the two travelling wheels 33 form linkage, one connecting rod 32 is connected through the first driving mechanism, the two travelling wheels 33 are mutually close to or far away from each other through driving the connecting rod 32 to rotate around the first mounting frame 31, the height of the upper end face of the bridge frame 1 from the ground is adjusted, and the maximum lifting height is adjusted to adapt to lifting of workpieces with different specifications. The bridge crane provided by the utility model has a simple structure, and the applicability of the device is improved by adjusting the maximum lifting height.

Wherein, correspond first mounting bracket 31 on the crane span structure 1 and still be equipped with second mounting bracket 4, and second mounting bracket 4 is located the inboard of first mounting bracket 31, second mounting bracket 4 includes vertical pole 41 and connects the horizontal pole 42 at the vertical pole 41 lower extreme, vertical pole 41 runs through crane span structure 1, and with crane span structure 1 sliding connection, be equipped with first spout 421 on the horizontal pole 42, connecting rod 32 sliding connection is in first spout 421, first actuating mechanism fixes on horizontal pole 42, actuating mechanism's drive end connects connecting rod 32 of one of them side, be used for driving connecting rod 32 of this side to slide in first spout 421.

Further, the connecting rod 32 is located outside the first mounting frame 31, the end portion of the connecting rod 32, which is close to the first mounting frame 31, is provided with a first connecting shaft 3202, the first connecting shaft 3202 is perpendicular to the rotation plane of the connecting rod 32, the gear 3201 is connected to the first connecting shaft 3202 and located outside the connecting rod 32, and one end, far away from the gear 3201, of the first connecting shaft 3202 penetrates through the first mounting frame 31 to the inner side and is rotationally connected with the mounting frame.

Further, a second sliding groove 412 is longitudinally provided on the longitudinal rod 41 corresponding to the first connecting axle 3202, and the first connecting axle 3202 extends into the second sliding groove 412 through one end of the first mounting frame 31 and is slidably connected to the second sliding groove 412.

Optionally, an expanding block 411 is disposed at the upper end of the vertical rod 41, the cross-sectional area of the expanding block 411 is larger than that of the vertical rod 41, when the driving mechanism drives the two travelling wheels 33 to approach each other, the bridge 1 slides upwards relative to the vertical rod 41, and by disposing the expanding block 411, the distance of the upward movement of the bridge 1 can be limited, so as to prevent the vertical rod 41 from separating from the bridge 1.

In some embodiments, referring to fig. 1 to 7, an end of the connecting rod 32 far from the first mounting frame 31 is provided with a connecting shaft sleeve perpendicular to a rotation plane of the connecting rod 32, the connecting shaft sleeve is slidably disposed in the first sliding groove 421, a mounting shaft is penetrated in the connecting shaft sleeve, the mounting shaft is rotatably connected with the connecting shaft sleeve, the travelling wheel 33 is connected on the mounting shaft and is located at the outer side of the connecting rod 32, one end of the connecting shaft far from the travelling wheel 33 extends to the inner side of the cross bar 42, in this embodiment, the connecting rod 32 comprises a first rod body 321 and a second rod body 322, the travelling wheel 33 comprises a first wheel body 331 and a second wheel body 332, the first rod body 321 is connected between the first mounting frame 31 and the first wheel body 331, the second connecting rod 32 is connected between the first mounting frame 31 and the second wheel body 332, the connecting shaft sleeve disposed on the first rod body 321 is a first sleeve 3211, the connecting shaft sleeve arranged on the second rod body 322 is a second sleeve body 3221, the mounting shaft in the first sleeve body 3211 is a first shaft body 3212, the mounting shaft in the second sleeve body 3221 is a second shaft body 3222, wherein the first shaft body 3212 is rotationally connected with the first wheel body 331, the second shaft body 3222 is in transmission connection with the second wheel body 332, brackets 53 are arranged at intervals on two sides of the first shaft body 3212 at the inner side of the cross rod 42, a lead screw 52 is rotationally connected between the two brackets 53, the lead screw 52 penetrates through the first shaft body 3212 and is in threaded connection with the first shaft body 3212, the driving end of the first motor 51 is in transmission connection with the lead screw 52, when in use, the lead screw 52 is driven to rotate by starting the first motor 51, the first shaft body 3212 can slide along the first sliding groove 421 so as to drive the first wheel body 331 and the second wheel body 332 to be far away from or close to each other, thereby realizing the adjustment of the height of the upper end surface of the bridge frame 1 from the bottom surface, changing the lifting height so as to be suitable for lifting different types of workpieces.

In some embodiments, referring to fig. 1 to 7, the second sleeve 3221 extends through the first chute 421 to the inner side of the cross bar 42, the end of the second sleeve 3221 located at the inner side of the cross bar 42 is connected with a mounting plate 3223, the mounting plate 3223 is provided with a second motor 6, the second shaft 3222 extends through the mounting plate 3223 and is in driving connection with the driving end of the second motor 6, and in use, the second wheel 332 is in driving connection with the second motor 6 by means of the second shaft 3222, and the second wheel 332 can be driven to rotate by starting the second motor 6, so as to drive the bridge 1 to move on the crane rail.

In some embodiments, referring to fig. 1 to 7, the number of the travelling mechanisms 3 at each end of the bridge 1 is two, and the two travelling mechanisms 3 are symmetrically arranged, so that the number of the travelling wheels 33 at each end of the bridge 1 is four, and by arranging a plurality of travelling wheels 33, the wheel pressure of each travelling wheel 33 on the crane rail can be relatively reduced, so that the load of the supporting beam and the supporting upright post for supporting the crane rail is reduced, and the manufacturing cost of a factory building is reduced.

Alternatively, referring to fig. 3 to 6, the cross bars 42 on the two second mounting frames 4 are integrally connected to each other, so that the two second mounting frames 4 are integrally connected to each other, thereby increasing the mechanical strength and stability of the apparatus as a whole.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. Bridge crane, its characterized in that includes crane span structure (1), be provided with crane trolley (2) above crane span structure (1), the below both ends of crane span structure (1) all are equipped with running gear (3), running gear (3) are including first mounting bracket (31) and symmetry are located walking wheel (33) of first mounting bracket (31) both sides, first mounting bracket (31) are fixed on crane span structure (1), first mounting bracket (31) with all be equipped with connecting rod (32) between walking wheel (33), connecting rod (32) one end with first mounting bracket (31) are articulated, the other end is rather than the homonymy walking wheel (33) swivelling joint, two connecting rod (32) are close to the tip of first mounting bracket (31) all has set firmly gear (3201), and two gear (3201) mesh, wherein be connected with first actuating mechanism on connecting rod (32) of one side, connecting rod (32) of first actuating mechanism drive this side is around first mounting bracket (31) rotate for two are close to or keep away from each other (33).

2. Bridge crane according to claim 1, wherein the bridge frame (1) is further provided with a second mounting frame (4) corresponding to the first mounting frame (31), and the second mounting frame (4) is located at the inner side of the first mounting frame (31), the second mounting frame (4) comprises a longitudinal rod (41) and a cross rod (42) connected to the lower end of the longitudinal rod (41), the longitudinal rod (41) penetrates through the bridge frame (1) and is in sliding connection with the bridge frame (1), a first sliding groove (421) is formed in the cross rod (42), the connecting rod (32) is in sliding connection with the first sliding groove (421), the first driving mechanism is fixed on the cross rod (42), and the driving end of the first driving mechanism is connected with the connecting rod (32) at one side and is used for driving the connecting rod (32) at the one side to slide in the first sliding groove (421).

3. A bridge crane according to claim 2, wherein the upper end of the vertical bar (41) is provided with an enlarged block (411), said enlarged block (411) being adapted to prevent the vertical bar (41) from disengaging from the bridge (1).

4. The bridge crane according to claim 2, wherein the connecting rod (32) is located at the outer side of the first mounting frame (31), a first connecting shaft (3202) is arranged at the end of the connecting rod (32) close to the first mounting frame (31), the first connecting shaft (3202) is perpendicular to the rotation plane of the connecting rod (32), the gear (3201) is connected to the first connecting shaft (3202) and located at the outer side of the connecting rod (32), and one end of the first connecting shaft (3202) away from the gear (3201) penetrates through the first mounting frame (31) inwards and is connected with the first mounting frame (31) in a rotating mode.

5. The bridge crane according to claim 4, wherein a second sliding groove (412) is longitudinally provided on the longitudinal bar (41) corresponding to the first connecting shaft (3202), and the first connecting shaft (3202) extends into the second sliding groove (412) through one end of the first mounting frame (31) and is slidably connected with the second sliding groove (412).

6. A bridge crane according to claim 2, characterized in that the end of the connecting rod (32) away from the first mounting frame (31) is provided with a connecting sleeve, the connecting sleeve is perpendicular to the rotation plane of the connecting rod (32), the connecting sleeve is slidably arranged in the first sliding groove (421), a mounting shaft is arranged in the connecting sleeve in a penetrating way, the mounting shaft is rotationally connected with the connecting sleeve, the travelling wheel (33) is connected with the mounting shaft and is located at the outer side of the connecting rod (32), the end of the connecting sleeve away from the travelling wheel (33) extends to the inner side of the cross rod (42), the inner side of the cross rod (42) is provided with brackets (53) at intervals at two sides of one mounting shaft, a screw (52) is rotationally connected between the two brackets (53), the screw (52) penetrates through the mounting shaft and is in threaded connection with the mounting shaft, the first driving mechanism comprises a first motor (51) arranged at one side of the brackets (53), and the first motor (51) is connected with the screw (52).

7. A bridge crane as claimed in claim 6, wherein the travelling wheel (33) comprises a first wheel body (331) and a second wheel body (332), the mounting shaft comprises a first shaft body (3212) and a second shaft body (3222), the first shaft body (3212) is rotatably connected with the first wheel body (331), the second shaft body (3222) is rotatably connected with the second wheel body (332), the screw (52) is in threaded connection with the first shaft body (3212), and one end of the second shaft body (3222) away from the second wheel body (332) is connected with a second motor (6).

8. A bridge crane according to claim 7, wherein a mounting plate (3223) is provided on the connecting sleeve at one side of the second shaft body (3222), the mounting plate (3223) is located at the inner side of the cross bar (42), the second motor (6) is mounted on the mounting plate (3223), and the second shaft body (3222) penetrates through the mounting plate (3223) to be connected with the driving end of the second motor (6).

9. A bridge crane according to any one of claims 2-8, wherein the number of travelling mechanisms (3) at each end of the bridge (1) is two and the travelling mechanisms (3) are symmetrically arranged.

10. A bridge crane according to claim 9, wherein two of said crossbars (42) are integrally connected.