Protective device for steel wire rope of grab crown block

Abstract

The utility model relates to the technical field of grab cranes, in particular to a grab crown block steel wire rope protection device which comprises a cross beam, a moving trolley is arranged at the top end of the cross beam, a driving wheel is arranged in the middle of the moving trolley, a steel wire rope is arranged on the surface of the driving wheel, and a driven wheel is arranged at the other end of the steel wire rope. A rotating shaft is arranged in the middle of the driven wheel, U-shaped blocks are arranged at the two ends of the rotating shaft, first bearings are arranged at the bottom ends of the U-shaped blocks, and connecting bases are arranged at the bottom ends of the first bearings; a spring is arranged on the surface of the sliding rod, a movable seat is arranged at the other end of the sliding rod, a hoop is arranged on one side of the movable seat, and a carrier roller is arranged in the middle of the hoop. Through the arrangement of the sleeve, the sleeve is rotationally connected to the surface of the cross rod during use, and the two ends of the cross rod are fixedly connected with the two ends of the cross beam, so that the effect of avoiding contact friction loss between the steel wire rope and the two sides of the cross beam is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of grab cranes, in particular to a steel wire rope protection device for a grab crane. Background Art

[0002] A grab crane, commonly known as a grab overhead crane, is a type of lifting machinery equipped with a grab bucket. It is widely used in ports, docks, freight yards, and mines to load various bulk cargoes, including logs, minerals, coal, sand and gravel, and earth and stone. A grab crane is an automatic retrieval machine. The material grabbing and unloading process is controlled by the unloader operator, without the need for assistance. This eliminates heavy labor and reduces auxiliary work time, significantly improving loading and unloading efficiency. Grab cranes are generally categorized as bridge grab cranes, gantry grab cranes, and folding arm grab cranes. The grab cranes commonly referred to are folding arm grab cranes, such as log cranes.

[0003] The existing overhead crane for material handling lacks a wire rope guard. Due to the deep sandstone pit and the long wire rope, the rope would swing back and forth and vibrate during material handling, scratching the gimbal on the overhead crane beam, which already had a noticeable groove. Long-term use also caused wear and tear on the wire rope, shortening its service life and posing a risk to the crane's safe operation. Utility Model Content

[0004] The purpose of the utility model is to provide a steel wire rope protection device for a grab crane to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A steel wire rope protection device for a grab crane, comprising:

[0007] A crossbeam, a mobile trolley is provided at the top of the crossbeam, a driving wheel is provided in the middle of the mobile trolley, a steel wire rope is provided on the surface of the driving wheel, a driven wheel is provided at the other end of the steel wire rope, a rotating shaft is provided in the middle of the driven wheel, U-shaped blocks are provided at both ends of the rotating shaft, a first bearing is provided at the bottom end of the U-shaped block, and a connecting seat is provided at the bottom end of the first bearing;

[0008] A slide rod is provided with a spring on the surface of the slide rod, a movable seat is provided at the other end of the slide rod, a clamp is provided on one side of the movable seat, and a roller is provided in the middle of the clamp.

[0009] Preferably, the top end of the crossbeam is slidably connected to a moving trolley, the middle portion of the moving trolley is rotatably connected to a driving wheel, and a steel wire rope is wound around the surface of the driving wheel.

[0010] Preferably, the other end of the steel wire rope is wound around a driven wheel, the middle of the driven wheel is fixedly connected to a rotating shaft, and both ends of the rotating shaft are rotatably connected to U-shaped blocks.

[0011] Preferably, the bottom end of the U-shaped block is rotatably connected to a first bearing, and the bottom end of the first bearing is rotatably connected to a connecting seat.

[0012] Preferably, the four corners of the connecting seat are rotatably connected to connecting rods, and the other end of the connecting rod is rotatably connected to a grab bucket.

[0013] Preferably, both sides of the crossbeam are fixedly connected with cross bars, and the surface of the cross bars is rotatably connected with sleeves.

[0014] Preferably, grooves are provided on both sides of both ends of the beam, a sliding rod is fixedly connected to the middle of the groove, the other end of the sliding rod is fixedly connected to the first limit block, both ends of the groove are fixedly connected to the limiting rod, and the other end of the limiting rod is fixedly connected to the second limit block.

[0015] Preferably, the other end of the slide rod is slidably connected to a movable seat, a plurality of sliding grooves are provided on one side of the movable seat, and the interior of the sliding grooves is slidably connected to the surface of the first limiting block.

[0016] Preferably, a spring is sleeved on the surface of the sliding rod, one end of the spring abuts against the inside of the groove, and the other end of the spring abuts against one side of the movable seat.

[0017] Preferably, a clamp is fixedly connected to the other side of the movable seat, a second bearing is fixedly connected to the inside of the clamp, and a roller is rotatably connected to the middle of the second bearing.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model is provided with a first bearing. When in use, the first bearing is fixedly connected to the middle part of the top end of the connecting seat. The middle part of the first bearing is rotatably connected to the bottom end of the U-shaped block, thereby achieving an effect of rotation between the U-shaped block and the connecting seat, thereby achieving an effect of reducing the swing amplitude of the wire rope during the lifting process;

[0020] Through the setting of the sleeve, when in use, the sleeve is rotated and connected to the surface of the crossbar, and the two ends of the crossbar are fixedly connected to the two ends of the beam, thereby achieving the effect of avoiding the contact friction loss between the wire rope and the two sides of the beam;

[0021] Through the setting of the movable seat, the movable seat is slidably connected to the surface of the slide rod and a spring is sleeved on the surface of the slide rod when in use. The other side of the movable seat is rotatably connected to the roller. When the mobile trolley stops moving, the inertia of the grab will drive the wire rope to hit the end of the beam. Through the setting of the spring, a buffering and shock absorption effect is achieved, thereby reducing the wear of the wire rope and increasing the service life of the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic structural diagram of the mobile trolley of the present utility model;

[0024] Figure 3 This is a schematic diagram of the connecting seat structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the beam of the present invention;

[0026] Figure 5 This is an enlarged structural diagram of point A of the present invention.

[0027] In the figure: 1. crossbeam; 101. groove; 2. mobile trolley; 3. driving wheel; 4. wire rope; 5. driven wheel; 6. rotating shaft; 7. U-shaped block; 8. first bearing; 9. connecting seat; 10. connecting rod; 11. grab; 12. crossbar; 13. sleeve; 14. slide bar; 1401. first limit block; 15. limit rod; 1501. second limit block; 16. movable seat; 1601. slide groove; 17. spring; 18. clamp; 19. second bearing; 20. roller. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the overall concept of the present invention, the following is a detailed description in conjunction with the accompanying drawings.

[0029] Example 1:

[0030] See also Figures 1 to 5 The utility model provides a technical solution: a steel wire rope protection device for a grab crane, comprising:

[0031] A crossbeam 1 is provided with a mobile trolley 2 at the top of the crossbeam 1, a driving wheel 3 is provided in the middle of the mobile trolley 2, a steel wire rope 4 is provided on the surface of the driving wheel 3, a driven wheel 5 is provided at the other end of the steel wire rope 4, a rotating shaft 6 is provided in the middle of the driven wheel 5, a U-shaped block 7 is provided at both ends of the rotating shaft 6, a first bearing 8 is provided at the bottom end of the U-shaped block 7, and a connecting seat 9 is provided at the bottom end of the first bearing 8;

[0032] The slide rod 14 has a spring 17 on its surface, a movable seat 16 on the other end of the slide rod 14 , a clamp 18 on one side of the movable seat 16 , and a roller 20 in the middle of the clamp 18 .

[0033] Through the setting of the first bearing 8, the first bearing 8 is fixedly connected to the middle part of the top of the connecting seat 9 when in use, and the middle part of the first bearing 8 is rotatably connected to the bottom end of the U-shaped block 7, thereby achieving the effect of rotation between the U-shaped block 7 and the connecting seat 9, thereby achieving the effect of reducing the swing amplitude of the wire rope 4 during the lifting process.

[0034] Example 2:

[0035] like Figures 2 to 3 As shown, the structure of a wire rope protection device for a grab crane disclosed in the second embodiment of the present invention is basically the same as that in the first embodiment, except that:

[0036] The top end of the crossbeam 1 is slidably connected to a moving trolley 2 , the middle portion of the moving trolley 2 is rotatably connected to a driving wheel 3 , and a steel wire rope 4 is wound around the surface of the driving wheel 3 .

[0037] The other end of the steel wire rope 4 is wound around a driven wheel 5 , a rotating shaft 6 is fixedly connected to the middle of the driven wheel 5 , and both ends of the rotating shaft 6 are rotatably connected to U-shaped blocks 7 .

[0038] The bottom end of the U-shaped block 7 is rotatably connected to a first bearing 8 , and the bottom end of the first bearing 8 is rotatably connected to a connecting seat 9 .

[0039] The four corners of the connecting seat 9 are rotatably connected to connecting rods 10, and the other end of the connecting rod 10 is rotatably connected to a grab bucket 11.

[0040] Both sides of the crossbeam 1 are fixedly connected with cross bars 12 , and the surface of the cross bars 12 is rotatably connected with sleeves 13 .

[0041] Through the setting of the sleeve 13, the sleeve 13 is rotated and connected to the surface of the cross bar 12 during use, and the two ends of the cross bar 12 are fixedly connected to the two ends of the beam 1, thereby achieving the effect of avoiding friction loss caused by contact between the wire rope 4 and both sides of the beam 1.

[0042] Example 3:

[0043] like Figures 4 and 5 As shown, the structure of a wire rope protection device for a grab crane disclosed in the third embodiment of the present invention is basically the same as that in the second embodiment, except that:

[0044] Grooves 101 are provided on both sides of both ends of the beam 1, a sliding rod 14 is fixedly connected to the middle of the groove 101, and the other end of the sliding rod 14 is fixedly connected to a first limit block 1401, and both ends of the groove 101 are fixedly connected to a limit rod 15, and the other end of the limit rod 15 is fixedly connected to a second limit block 1501.

[0045] The other end of the slide rod 14 is slidably connected to a movable seat 16 . A plurality of sliding grooves 1601 are formed on one side of the movable seat 16 . The interior of the sliding grooves 1601 is slidably connected to the surface of the first limiting block 1401 .

[0046] A spring 17 is sleeved on the surface of the slide rod 14 . One end of the spring 17 abuts against the inside of the groove 101 , and the other end of the spring 17 abuts against one side of the movable seat 16 .

[0047] A clamp 18 is fixedly connected to the other side of the movable seat 16 , a second bearing 19 is fixedly connected to the interior of the clamp 18 , and a roller 20 is rotatably connected to the middle of the second bearing 19 .

[0048] Through the setting of the movable seat 16, when in use, the movable seat 16 is slidably connected to the surface of the slide rod 14 and the surface of the slide rod 14 is sleeved with a spring 17. The other side of the movable seat 16 is rotatably connected to the roller 20. When the mobile trolley 2 stops moving, the inertia of the grab 11 will drive the wire rope 4 to hit the end of the beam 1. Through the setting of the spring 17, the effect of buffering and shock absorption is achieved, thereby achieving the effect of reducing the wear of the wire rope 4 and improving the service life of the wire rope 4.

[0049] When the utility model is in use, first control the mobile trolley 2 to move the grab bucket 11 to the specified position, then lengthen the wire rope 4 by rotating the driving wheel 3 to make the grab bucket 11 contact with the material, and through the setting of the first bearing 8, the first bearing 8 is fixedly connected to the middle part of the top of the connecting seat 9 when in use, and the middle part of the first bearing 8 is rotatably connected to the bottom end of the U-shaped block 7, so as to achieve the effect of being able to rotate between the U-shaped block 7 and the connecting seat 9, thereby achieving the effect of reducing the swing amplitude of the wire rope 4 during the lifting process, and then control the grab bucket 11 to grab the material, and finally transport the grabbed material to the specified position, and through the setting of the sleeve 13, the sleeve 13 is used. It is rotatably connected to the surface of the cross bar 12, and the two ends of the cross bar 12 are fixedly connected to the two ends of the beam 1, thereby achieving the effect of avoiding friction loss between the wire rope 4 and the two sides of the beam 1. Through the setting of the movable seat 16, the movable seat 16 is slidably connected to the surface of the slide bar 14 when in use, and the surface of the slide bar 14 is sleeved with a spring 17. The other side of the movable seat 16 is rotatably connected to the roller 20. When the mobile trolley 2 stops moving, the inertia of the grab 11 will drive the wire rope 4 to hit the end of the beam 1. Through the setting of the spring 17, the effect of buffering and shock absorption is achieved, thereby achieving the effect of reducing the wear of the wire rope 4 and improving the service life of the wire rope 4.

[0050] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0051] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A wire rope protection device for a grab crane, characterized in that: include: A crossbeam (1), a moving trolley (2) is provided at the top of the crossbeam (1), a driving wheel (3) is provided in the middle of the moving trolley (2), a steel wire rope (4) is provided on the surface of the driving wheel (3), a driven wheel (5) is provided at the other end of the steel wire rope (4), a rotating shaft (6) is provided in the middle of the driven wheel (5), U-shaped blocks (7) are provided at both ends of the rotating shaft (6), a first bearing (8) is provided at the bottom end of the U-shaped block (7), and a connecting seat (9) is provided at the bottom end of the first bearing (8); A slide bar (14) is provided with a spring (17) on the surface of the slide bar (14), a movable seat (16) is provided at the other end of the slide bar (14), a clamp (18) is provided on one side of the movable seat (16), and a roller (20) is provided in the middle of the clamp (18).

2. A grab crane wire rope protection device according to claim 1, characterized in that: The top end of the crossbeam (1) is slidably connected to a moving trolley (2), the middle portion of the moving trolley (2) is rotatably connected to a driving wheel (3), and a steel wire rope (4) is wound around the surface of the driving wheel (3).

3. The wire rope protection device for a grab crane according to claim 2, characterized in that: The other end of the steel wire rope (4) is wound around a driven wheel (5), the middle of the driven wheel (5) is fixedly connected to a rotating shaft (6), and both ends of the rotating shaft (6) are rotatably connected to U-shaped blocks (7).

4. A wire rope protection device for a grab crane according to claim 3, characterized in that: The bottom end of the U-shaped block (7) is rotatably connected to a first bearing (8), and the bottom end of the first bearing (8) is rotatably connected to a connecting seat (9).

5. The wire rope protection device for a grab crane according to claim 4, characterized in that: The four corners of the connecting seat (9) are all rotatably connected to connecting rods (10), and the other end of the connecting rod (10) is rotatably connected to a grab bucket (11).

6. The wire rope protection device for a grab crane according to claim 5, characterized in that: Both sides of the crossbeam (1) are fixedly connected to crossbars (12), and the surface of the crossbar (12) is rotatably connected to a sleeve (13).

7. The wire rope protection device for a grab crane according to claim 6, characterized in that: Grooves (101) are provided on both sides of both ends of the crossbeam (1), a sliding rod (14) is fixedly connected to the middle of the groove (101), the other end of the sliding rod (14) is fixedly connected to a first limiting block (1401), and both ends of the groove (101) are fixedly connected to a limiting rod (15), the other end of the limiting rod (15) is fixedly connected to a second limiting block (1501).

8. The wire rope protection device for a grab crane according to claim 7, characterized in that: The other end of the slide rod (14) is slidably connected to a movable seat (16), and a plurality of slide grooves (1601) are provided on one side of the movable seat (16), and the interior of the slide grooves (1601) is slidably connected to the surface of the first limit block (1401).

9. The wire rope protection device for a grab crane according to claim 8, characterized in that: A spring (17) is sleeved on the surface of the slide rod (14), one end of the spring (17) abuts against the inside of the groove (101), and the other end of the spring (17) abuts against one side of the movable seat (16).

10. The wire rope protection device for a grab crane according to claim 9, characterized in that: The other side of the movable seat (16) is fixedly connected to a clamp (18), the interior of the clamp (18) is fixedly connected to a second bearing (19), and the middle of the second bearing (19) is rotatably connected to a roller (20).

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