CN216836806U

CN216836806U - Detachable rail clamping device for gantry crane

Info

Publication number: CN216836806U
Application number: CN202220644992.1U
Authority: CN
Inventors: 罗实; 朱庆海; 代伟; 晏启祥; 陈佺
Original assignee: Southwest Jiaotong University; Sinohydro Bureau 7 Co Ltd
Current assignee: Southwest Jiaotong University; Sinohydro Bureau 7 Co Ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-06-28
Anticipated expiration: 2032-03-22

Abstract

The utility model discloses a can dismantle and press from both sides rail device for gantry crane relates to hoisting machinery safety technical field. The crane rail clamping assembly comprises a crane base, two rail clamping assemblies are symmetrically arranged at the centers of two sides of the crane base, each rail clamping assembly comprises a rail clamping box with a groove at the lower end, and a guide sliding rod is arranged inside the groove; the guide slide bar is connected with a slide block in a sliding way; a rail clamping telescopic rod is further arranged between one side of the sliding block, which is far away from the crane base, and the side wall of the groove, and the rail clamping telescopic rod is abutted to the sliding block; the lower end of the sliding block is connected with an L-shaped rail clamping caliper through a detachable connecting structure. The rail clamping device is simple and firm in structure, the gantry crane can be effectively fixed on the rail, and the sliding risk of the crane in the working process is avoided. The rail clamping device is convenient to maintain while the rail clamping assembly is guaranteed to operate by the detachable L-shaped rail clamping calipers.

Description

Detachable rail clamping device for gantry crane

Technical Field

The utility model relates to a hoisting machinery safety technical field, concretely relates to a can dismantle and press from both sides rail device for gantry crane.

Background

The gantry crane is mainly applied to loading and unloading operation of large goods. The gantry crane often works in outdoor strong wind or heavy rain environment, is easily influenced by environment and human factors to generate accidental sliding or even overturning accidents, and threatens the personal safety of field construction personnel while causing equipment damage. The existing rail clamping device has a complex structure and is not easy to adjust and maintain; and when the track is clamped, the clamping surface cannot be attached to the track, so that the clamping is unstable, and the clamping is easy to slide and even overturn.

SUMMERY OF THE UTILITY MODEL

The utility model provides a convenient dismantlement maintenance, simple structure's a can dismantle rail clamping device that presss from both sides for gantry crane to the above-mentioned not enough of prior art.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

the detachable rail clamping device for the portal crane comprises a crane base, wherein two rail clamping assemblies are symmetrically arranged at the centers of two sides of the crane base, each rail clamping assembly comprises a rail clamping box with a groove at the lower end, and a guide sliding rod is arranged inside the groove; the guide slide bar is connected with a slide block in a sliding way; a rail clamping telescopic rod is further arranged between one side of the sliding block, which is far away from the crane base, and the side wall of the groove, and the rail clamping telescopic rod is abutted to the sliding block; the lower end of the sliding block is connected with an L-shaped rail clamping caliper through a detachable connecting structure.

The utility model discloses simple structure sets up the clamp rail subassembly at hoist base both ends through central symmetry and fixes the hoist on the track, and two L shape clamp rail callipers can produce the antagonism hoist along the gliding power of track when exerting pressure to the track, can prevent effectively that the hoist from taking place to slide in the course of the work. The detachable L-shaped rail clamping pliers facilitate the maintenance of the rail clamping device.

Furthermore, a plurality of guide slide bars are arranged in parallel and are all connected with the slide block in a sliding manner.

A plurality of direction slide bars can make the stable slip of slider on the one hand, and on the other hand can increase the bending resistance, and the direction slide bar takes place to buckle when avoiding L shape to press from both sides rail calliper to the track centre gripping.

Furthermore, the cover is equipped with reset spring on the direction slide bar, and reset spring is located one side that the slider is close to the hoist base, and reset spring's both ends respectively with the lateral wall of recess and the lateral wall butt of slider.

Furthermore, an anti-skid rubber block is arranged at one end of the L-shaped clamp rail clamp close to the crane base.

The anti-skidding rubber blocks can assist the rail clamping device to fix the crane, so that the crane is prevented from skidding; can dismantle L clamp rail calliper can conveniently maintain the change to anti-skidding rubber piece.

Furthermore, a pressure sensor is arranged between the anti-skid rubber block and the L-shaped rail clamping pliers, and an early warning indicator lamp is further arranged on the side face, far away from the crane base, of the rail clamping box.

The pressure sensor and the early warning indicator lamp are arranged to help remind workers to control the rail clamping telescopic rod, and the phenomenon that the L-shaped rail clamping calipers have overlarge pressure on the rail is avoided, so that the rail clamping calipers are damaged.

Furthermore, the detachable connecting structure comprises a first connecting part arranged at the lower end of the sliding block, a second connecting part arranged at the upper end of the L-shaped rail clamping pliers and a bolt; the first connecting part comprises a T-shaped strip vertical to the guide sliding rod, and the second connecting part comprises a T-shaped groove in sliding fit with the T-shaped strip; the T-shaped strip and the T-shaped groove are both provided with locking holes, and the locking holes are arranged in a direction vertical to the length direction of the T-shaped strip; the bolt is connected with the locking hole in a matching way.

The T-shaped strip and the T-shaped groove can strengthen the bending resistance of the joint between the L-shaped rail clamping caliper and the sliding block, so that the rail clamping assembly is firmer.

Furthermore, the detachable connecting structure further comprises a resistance rib, one end of the resistance rib is connected with one end, close to the crane base, of the L-shaped clamp rail clamp, and the other end of the resistance rib is connected with the side wall, close to the crane base, of the sliding block.

The arrangement of the anti-force rib prevents the L-shaped rail clamping calipers from being broken when the L-shaped rail clamping calipers apply pressure to the rail.

Furthermore, the resistance ribs are provided with a plurality of resistance ribs which are arranged at even intervals.

Furthermore, the length direction of the guide sliding rod and the length direction of the crane base form an angle a, and a is more than or equal to 60 degrees and less than or equal to 80 degrees.

The L-shaped rail clamping pliers with the inclination angles in the length direction of the rail can reduce the width of the rail clamping assembly, reduce the volume of the rail clamping device and reduce the probability of collision between the rail clamping device and obstacles around the rail in the action process of the crane.

The utility model has the advantages that:

the rail clamping device is simple and firm in structure, and can effectively fix the gantry crane on the rail, so that the sliding risk of the crane in the working process is avoided. The rail clamping device is convenient to maintain while the rail clamping assembly is guaranteed to operate by the detachable L-shaped rail clamping calipers.

Drawings

Fig. 1 is a schematic structural view of the present invention assembled on a rail;

FIG. 2 is a schematic front view of the present invention assembled on a track;

FIG. 3 is a schematic view of the present invention from the bottom;

fig. 4 is a schematic bottom view of the present invention;

FIG. 5 is a schematic view of a hidden rail clamping box of the rail clamping assembly;

FIG. 6 is an exploded view of the slider, L-shaped rail clamp and resistive bead.

Wherein, 1, a track; 2. a crane base; 3. a rail clamping assembly; 4. clamping a rail box; 5. a guide slide bar; 6. a slider; 7. a rail clamping telescopic rod; 8. l-shaped rail clamping calipers; 9. a return spring; 10. an anti-slip rubber block; 11. a pressure sensor; 12. an early warning indicator light; 13. a first connection portion; 14. a second connecting portion; 15. a locking hole; 16. a bolt; 17. and (5) resisting the strength rib.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.

As shown in fig. 1-5, the detachable rail clamping device for a gantry crane comprises a crane base 2, wherein the crane base 2 is erected on a track 1, two rail clamping assemblies 3 are arranged on two sides of the crane base 2 in a central symmetry manner, each rail clamping assembly 3 comprises a rail clamping box 4 with a groove at the lower end, and a guide slide bar 5 is arranged in the groove along the length direction of the groove; the length direction of the guide slide bar 5 and the length direction of the crane base 2 have an angle a, and a is 75 °, in other embodiments of the present invention, the angle a may be 60 °, 65 °, 70 °, or 80 °. The guide slide bar 5 is connected with a slide block 6 in a sliding way; the number of the guide slide bars 5 is four, the four guide slide bars 5 are parallel to each other, and the four guide slide bars 5 are all connected with the slide block 6 in a sliding manner; in other embodiments of the present invention, the number of guide slide bars 5 may be 2, 3, 5 or 6, etc. A rail clamping telescopic rod 7 is further arranged between one side, away from the crane base 2, of the sliding block 6 and the side wall of the groove, the rail clamping telescopic rod 7 is parallel to the guide sliding rod 5, one end of the rail clamping telescopic rod 7 is installed on the side wall of the groove through a bolt 16, and the other end of the rail clamping telescopic rod 7 is abutted to the sliding block 6; all the four guide slide bars 5 are sleeved with return springs 9, the return springs 9 are located on one side, close to the crane base 2, of the slide block 6, and two ends of each return spring 9 are respectively abutted to the side wall of the corresponding groove and the side wall of the corresponding slide block 6. Press from both sides rail telescopic link 7 and be electric telescopic handle, the utility model discloses an in other embodiments, press from both sides rail telescopic link 7 can be hydraulic telescoping rod or pneumatic telescopic link etc.. The lower end of the sliding block 6 is connected with an L-shaped clamp rail clamp 8 through a detachable connecting structure.

As shown in FIG. 2, the lower end of the L-shaped rail clamping caliper 8 is provided with an anti-skid rubber block 10 on the side surface close to the crane base 2. The side surface of the antiskid rubber block 10 close to the track 1 is fitted with the side wall of the track 1 in shape. A pressure sensor 11 is arranged between the anti-skid rubber block 10 and the L-shaped rail clamping pliers 8, and an early warning indicator lamp 12 is arranged on the side surface of the rail clamping box 4 far away from the crane base 2.

As shown in fig. 6, the detachable connection structure includes a first connection portion 13 provided at a lower end of the slider 6, a second connection portion 14 provided at an upper end of the L-shaped rail clamp 8, and a bolt 16; the first connecting part 13 comprises a T-shaped strip perpendicular to the guide slide bar 5, and the second connecting part 14 comprises a T-shaped groove in sliding fit with the T-shaped strip; the T-shaped strip and the T-shaped groove are both provided with locking holes 15, and the locking holes 15 are arranged in a direction perpendicular to the length direction of the T-shaped strip; the bolt 16 is fitted into the locking hole 15. As shown in fig. 5, the detachable connection structure further includes a resistance rib 17, one end of the resistance rib 17 is connected to one end of the L-shaped rail clamp 8 close to the crane base 2, and the other end of the resistance rib 17 is connected to the side wall of the slide block 6 close to the crane base 2. The resistance ribs 17 are made of tensile knitting yarns, the number of the resistance ribs 17 is two, and the two resistance ribs 17 are uniformly arranged at intervals; in other embodiments of the present invention, the number of the tensile ribs may be 1, 3, 4, or 5, etc.

The utility model discloses a theory of operation and use flow:

when the portal crane needs to stop working on the track 1, the controller controls two groups of rail clamping assemblies 3 symmetrically arranged at the two sides of the crane base 2 to work, the controller controls rail clamping telescopic rods 7 in the rail clamping assemblies 3 to extend, so that the sliding blocks 6 in the grooves are driven to move towards the track 1 along the rail clamping guide rods, the sliding blocks 6 extrude return springs 9, and the sliding blocks 6 drive L-shaped rail clamping calipers 8 to move towards the track 1; the anti-skid rubber blocks 10 at the lower ends of the L-shaped rail clamping calipers 8 are attached to the side wall of the rail 1, pressure perpendicular to the length direction of the rail 1 and force far away from the crane base 2 are applied to the rail 1, and the force far away from the crane base 2, which is applied by the two L-shaped rail clamping calipers 8 in central symmetry, is offset with each other, so that the crane base 2 is fixed on the rail 1.

A pressure sensor 11 positioned between the L-shaped rail clamping pliers 8 and the anti-skid rubber block 10 can detect the rail clamping pressure, and when the pressure reaches a certain value, an early warning indicator lamp 12 is turned on to control the rail clamping telescopic rod 7 to stop extending. When the gantry crane finishes work and needs to move, the rail clamping telescopic rod 7 is controlled to be shortened, and the early warning indicator lamp 12 is turned off; the slide block 6 loses the thrust of the rail clamping telescopic rod 7, and the slide block 6 is pushed while the return spring 9 is restored by the compression state, so that the L-shaped rail clamping calipers 8 are far away from the rail 1, and the gantry crane can move on the rail 1.

Claims

1. A detachable rail clamping device for a portal crane comprises a crane base (2) and is characterized in that two rail clamping assemblies (3) are symmetrically arranged at the centers of two sides of the crane base (2), each rail clamping assembly (3) comprises a rail clamping box (4) with a groove at the lower end, and a guide sliding rod (5) is arranged inside the groove; the guide sliding rod (5) is connected with a sliding block (6) in a sliding way; a rail clamping telescopic rod (7) is further arranged between one side, far away from the crane base (2), of the sliding block (6) and the side wall of the groove, and the rail clamping telescopic rod (7) is abutted to the sliding block (6); the lower end of the sliding block (6) is connected with an L-shaped rail clamping caliper (8) through a detachable connecting structure.

2. The detachable rail clamping device of a gantry crane according to claim 1, wherein the guide sliding rods (5) are arranged in parallel, and the guide sliding rods (5) are slidably connected with the sliding block (6).

3. The detachable rail clamping device for the gantry crane according to claim 1, wherein a return spring (9) is sleeved on the guide slide bar (5), the return spring (9) is positioned on one side of the sliding block (6) close to the crane base (2), and two ends of the return spring (9) are respectively abutted against the side wall of the groove and the side wall of the sliding block (6).

4. The removable rail clamping device of a gantry crane according to claim 1, wherein the lower end of the L-shaped rail clamp (8) is provided with an anti-skid rubber block (10) on the side close to the crane base (2).

5. The detachable rail clamping device for the gantry crane according to claim 4, wherein a pressure sensor (11) is further arranged between the anti-skid rubber block (10) and the L-shaped rail clamping calipers (8), and an early warning indicator lamp (12) is further arranged on the side, away from the crane base (2), of the rail clamping box (4).

6. The removable rail clamping device for a gantry crane according to claim 1, wherein the removable connection structure comprises a first connection part (13) provided at the lower end of the slider (6), a second connection part (14) provided at the upper end of the L-shaped rail clamp (8), and a bolt (16); the first connecting part (13) comprises a T-shaped strip perpendicular to the guide sliding rod (5), and the second connecting part (14) comprises a T-shaped groove in sliding fit with the T-shaped strip; the T-shaped strip and the T-shaped groove are both provided with locking holes (15), and the locking holes (15) are arranged in a direction perpendicular to the length direction of the T-shaped strip; the bolt (16) is matched and connected with the locking hole (15).

7. The detachable rail clamping device for the gantry crane according to claim 1, wherein the detachable connecting structure further comprises a resisting rib (17), one end of the resisting rib (17) is connected with one end of the L-shaped rail clamping caliper (8) close to the crane base (2), and the other end of the resisting rib (17) is connected with the side wall of the sliding block (6) close to the crane base (2).

8. The removable rail clamping device of a gantry crane according to claim 7, wherein the resisting ribs (17) are provided in a plurality, and the resisting ribs (17) are uniformly spaced.

9. The removable rail clamping device for a gantry crane according to claim 1, wherein the length direction of the guide slide bar (5) has an angle a with the length direction of the crane base (2), and 60 ° ≦ a ≦ 80 °.