Boom support supporting device of gantry crane

Abstract

The utility model relates to the field of portal crane booms, and discloses a portal crane boom supporting device which comprises a base, a fixing rod is fixedly installed at the top of the base, a thread sleeve is arranged at the top of the fixing rod, a crane boom body is fixedly installed at the top of the thread sleeve, and a supporting rod is fixedly installed at the top of the crane boom body. An adjusting assembly used for adjusting the height of the crane boom body is arranged at the top of the fixing rod and comprises a screw rod, and the bottom of the screw rod and the top of the fixing rod are rotationally installed. Through mutual matching of the screw rod, the connecting block, the worm and the worm gear, when the height of the crane boom body needs to be adjusted, the worm can be rotated to drive the worm gear to rotate, the worm gear rotates to drive the screw rod to rotate, and the screw rod rotates to drive the screw sleeve and the crane boom body to move up and down; therefore, the advantage of adjusting the height of the crane boom body is achieved.

Description

Technical Field

[0001] The utility model relates to the field of portal crane booms, in particular to a portal crane boom support device. Background Art

[0002] Gantry cranes, crane equipment, gantry cranes mostly run along crane tracks on the ground or on buildings to perform lifting and loading and unloading operations. One side of the running track is set on the ground, and the other side is set on a building above the ground.

[0003] As an important port loading and unloading equipment, gantry crane plays a key role in cargo handling and engineering construction. The boom support device is an important component of the gantry crane, and its performance directly affects the overall operation effect of the crane. The boom of the traditional gantry crane cannot be adjusted to the height according to different work requirements. When constructing at high places, a lift is needed to help. However, the lift is extremely unstable when raising the crane boom, which reduces the stability of the crane boom during work. Therefore, a gantry crane boom support device is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a gantry crane boom support device, which aims to improve the problem in the existing technology that the crane boom cannot be adjusted to the height according to different work requirements. When constructing at high places, a lift is still needed to help, but the lift is extremely unstable when raising the crane boom, thereby reducing the stability of the crane boom during work.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A portal crane boom support device comprises a base, a fixing rod is fixedly mounted on the top of the base, a screw sleeve is provided on the top of the fixing rod, a crane boom body is fixedly mounted on the top of the screw sleeve, the top of the crane boom body is fixedly mounted, and an adjustment component for adjusting the height of the crane boom body is provided on the top of the fixing rod;

[0007] As a further description of the above technical solution:

[0008] The adjusting assembly includes a screw, the bottom of the screw and the top of the fixed rod are rotatably mounted, the top of the screw passes through the interior of the screw sleeve and is threadedly mounted with the screw sleeve, the front and rear sides of the fixed rod are fixedly mounted with connecting blocks, one group of the connecting blocks has a worm rotatably mounted on the front side, and a worm wheel is fixedly mounted on the surface of the screw, and the worm wheel and the worm are meshed;

[0009] As a further description of the above technical solution:

[0010] The front end of the worm extends through the front side of another set of connecting blocks, a round block is slidably mounted on the surface of the worm, a sliding groove is provided on the top and bottom of the front surface of the worm, and a slider is fixedly mounted on the top and bottom of the inner wall of the round block, and the slider and the sliding groove are slidably mounted;

[0011] As a further description of the above technical solution:

[0012] A tension spring is fixedly mounted on the back of the round block, a disc is fixedly mounted on the back of the tension spring, and the back of the disc contacts the front of one set of connecting blocks;

[0013] As a further description of the above technical solution:

[0014] A slot is provided on the front of one group of the connecting blocks, and a plug rod is fixedly installed on the back of the round block, and the plug rod is plugged into the slot;

[0015] As a further description of the above technical solution:

[0016] A first rectangular block is fixedly installed on the right side of the fixing rod, a second rectangular block is fixedly installed on the right side of the screw sleeve, a limiting rod is fixedly installed on the top of the first rectangular block, the top of the limiting rod passes through the top of the second rectangular block and is slidably installed with the second rectangular block;

[0017] As a further description of the above technical solution:

[0018] A reinforcing rod is fixedly installed on the top of the back side of the screw sleeve, and the top of the reinforcing rod is fixedly installed on the bottom of the crane boom body.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, through the mutual cooperation of the screw, the connecting block, the worm and the worm wheel, when the height of the crane boom body needs to be adjusted, the worm can be rotated, the rotation of the worm drives the worm wheel to rotate, the rotation of the worm wheel drives the screw to rotate, and the rotation of the screw drives the screw sleeve and the crane boom body to move up and down, thereby achieving the advantage of adjusting the height of the crane boom body.

[0021] 2. In the present invention, the first rectangular block, the second rectangular block and the limiting rod cooperate with each other to limit the screw sleeve, thereby preventing the screw sleeve from being affected by the screw rod when moving, thereby causing the screw sleeve to rotate, thereby making it impossible for the crane boom body to be effectively raised and lowered. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the crane boom body proposed in the utility model;

[0023] Figure 2 The utility model provides a schematic diagram of the exploded cross-section structure of the screw sleeve;

[0024] Figure 3 For this utility model Figure 1 A in the middle shows the enlarged structure diagram;

[0025] Figure 4 For this utility model Figure 2 Enlarged structural diagram at point B in the middle.

[0026] Legend:

[0027] 1. Base; 2. Fixing rod; 3. Screw sleeve; 4. Crane boom body; 5. Adjustment assembly; 51. Screw; 52. Connecting block; 53. Worm; 54. Worm gear; 55. Round block; 56. Slide; 57. Slider; 58. Tension spring; 59. Disc; 510. Slot; 511. Insert rod; 6. First rectangular block; 7. Second rectangular block; 8. Limit rod; 9. Reinforcement rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1-4 The utility model provides an embodiment: a portal crane boom support device, including a base 1, a fixing rod 2 is fixedly installed on the top of the base 1, a screw sleeve 3 is provided on the top of the fixing rod 2, a crane boom body 4 is fixedly installed on the top of the screw sleeve 3, the top of the crane boom body 4 is fixedly installed, and an adjusting component 5 for adjusting the height of the crane boom body 4 is provided on the top of the fixing rod 2. First, the base 1 can be fixed to the desired position, and then the height of the crane boom body 4 can be adjusted by the adjusting component 5. When the adjusted height of the crane boom body 4 is too low, the stability of the crane boom body 4 can be improved, so that the crane boom body 4 can work under different working conditions.

[0030] Reference Figure 1-4The adjusting assembly 5 includes a screw 51, the bottom of the screw 51 and the top of the fixed rod 2 are rotatably installed, the top of the screw 51 passes through the interior of the screw sleeve 3 and is threadedly installed with the screw sleeve 3, the front and rear sides of the fixed rod 2 are fixedly installed with connecting blocks 52, and a worm 53 is rotatably installed on the front side of one group of connecting blocks 52. A worm gear 54 is fixedly installed on the surface of the screw 51, and the worm gear 54 and the worm 53 are engaged. Through the mutual cooperation of the screw 51, the connecting block 52, the worm 53 and the worm gear 54, when the height of the crane boom body 4 needs to be adjusted When the worm 53 is in the gear, the worm 53 rotates to drive the worm wheel 54 to rotate, the worm wheel 54 rotates to drive the screw 51 to rotate, and the screw 51 rotates to drive the screw sleeve 3 and the crane boom body 4 to move up and down, thereby achieving the advantage of adjusting the height of the crane boom body 4. The front end of the worm 53 passes through the front side of another set of connecting blocks 52. A round block 55 is slidably installed on the surface of the worm 53. A slide groove 56 is provided on the top and bottom of the front surface of the worm 53. A slider 57 is fixed on the top and bottom of the inner wall of the round block 55. 7 and the slide groove 56 are slidably installed. Through the mutual cooperation of the round block 55, the slide groove 56 and the slider 57, the worm 53 can be driven to rotate when the round block 55 is rotated, and at this time the round block 55 can also slide on the surface of the worm 53. A tension spring 58 is fixedly installed on the back of the round block 55, and a disc 59 is fixedly installed on the back of the tension spring 58. The back of the disc 59 is in contact with the front of one group of connecting blocks 52. Through the mutual cooperation of the tension spring 58 and the disc 59, the disc 59 and the round block 55 can always withstand the tension of the tension spring 58, thereby Instead, the round block 55 will have a better effect of driving the worm 53 to rotate. At this time, the round block 55 will slide on the surface of the worm 53, and the rotation of the worm 53 will not drive the disc 59 to rotate. A slot 510 is provided on the front side of one group of connecting blocks 52, and a plug rod 511 is fixedly installed on the back side of the round block 55. The plug rod 511 and the slot 510 are plugged in. Through the mutual cooperation between the slot 510 and the plug rod 511, the plug rod 511 can always withstand the tension of the tension spring 58, which will make the plug rod 511 more stable when entering the slot 510.

[0031] Reference Figure 1-4The right side of the fixing rod 2 is fixedly installed with a first rectangular block 6, and the right side of the screw sleeve 3 is fixedly installed with a second rectangular block 7. The top of the first rectangular block 6 is fixedly installed with a limiting rod 8, and the top of the limiting rod 8 passes through the top of the second rectangular block 7 and is slidably installed with the second rectangular block 7. Through the mutual cooperation of the first rectangular block 6, the second rectangular block 7 and the limiting rod 8, the screw sleeve 3 can be limited to prevent the screw sleeve 3 from being affected by the screw rod 51 when moving, thereby causing the screw sleeve 3 to rotate accordingly, thereby causing the crane boom body 4 to be unable to be effectively lifted and lowered. A reinforcing rod 9 is fixedly installed on the top of the back side of the screw sleeve 3, and the top of the reinforcing rod 9 and the bottom of the crane boom body 4 are fixedly installed. Through the setting of the reinforcing rod 9, the support of the crane boom body 4 can be strengthened, thereby avoiding the situation where the crane boom body 4 is insufficient in strength during work, thereby causing the crane boom body 4 to break.

[0032] Working principle: First, the base 1 can be fixed in the desired position. At this time, the round block 55 can be pulled forward, and the round block 55 moves to drive the insertion rod 511 and the slot 510 to disengage. Then the round block 55 can be rotated. The rotation of the round block 55 drives the worm 53 to rotate, and the rotation of the worm 53 drives the worm wheel 54 to rotate. The rotation of the worm wheel 54 drives the screw 51 to rotate. The rotation of the screw 51 drives the screw sleeve 3 and the crane boom body 4 to move up and down, so that the height of the crane boom body 4 can be adjusted. When the crane boom body 4 rises to a suitable height, the round block 55 can be pushed backward. At this time, the round block 55 will drive the insertion rod 511 to enter the inside of the slot 510, so that the worm 53 can be limited, thereby preventing the crane boom body 4 from being too heavy, which will cause the worm 53 to reverse.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gantry crane boom support device, comprising a base (1), characterized in that: A fixing rod (2) is fixedly installed on the top of the base (1), a screw sleeve (3) is provided on the top of the fixing rod (2), a crane boom body (4) is fixedly installed on the top of the screw sleeve (3), and an adjustment component (5) for adjusting the height of the crane boom body (4) is fixedly installed on the top of the fixing rod (2).

2. The gantry crane boom support device according to claim 1, characterized in that: The adjusting assembly (5) comprises a screw (51), the bottom of the screw (51) and the top of the fixed rod (2) are rotatably mounted, the top of the screw (51) passes through the interior of the screw sleeve (3) and is threadedly mounted on the screw sleeve (3), the front and rear sides of the fixed rod (2) are fixedly mounted with connecting blocks (52), and a worm (53) is rotatably mounted on the front side of one group of the connecting blocks (52), and a worm wheel (54) is fixedly mounted on the surface of the screw (51), and the worm wheel (54) and the worm (53) are meshed.

3. The gantry crane boom support device according to claim 2, characterized in that: The front end of the worm (53) passes through the front side of another group of connecting blocks (52), and a round block (55) is slidably installed on the surface of the worm (53). The top and bottom of the front of the worm (53) are both provided with a slide groove (56), and the top and bottom of the inner wall of the round block (55) are fixedly installed with a slider (57), and the slider (57) and the slide groove (56) are slidably installed.

4. The gantry crane boom support device according to claim 3, characterized in that: A tension spring (58) is fixedly mounted on the back of the round block (55), a disc (59) is fixedly mounted on the back of the tension spring (58), and the back of the disc (59) contacts the front of one group of connecting blocks (52).

5. The gantry crane boom support device according to claim 3, characterized in that: A slot (510) is provided on the front of one group of the connecting blocks (52), and an inserting rod (511) is fixedly installed on the back of the round block (55), and the inserting rod (511) is plugged into the slot (510).

6. The gantry crane boom support device according to claim 1, characterized in that: A first rectangular block (6) is fixedly mounted on the right side of the fixing rod (2), a second rectangular block (7) is fixedly mounted on the right side of the screw sleeve (3), a limiting rod (8) is fixedly mounted on the top of the first rectangular block (6), and the top of the limiting rod (8) passes through the top of the second rectangular block (7) and is slidably mounted on the second rectangular block (7).

7. The gantry crane boom support device according to claim 1, characterized in that: A reinforcing rod (9) is fixedly mounted on the top of the back side of the screw sleeve (3), and the top of the reinforcing rod (9) is fixedly mounted on the bottom of the crane boom body (4).

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