Door machine lifting opening and closing steel wire rope reel end cover fastening bolt convenient to clamp

Abstract

The portal crane lifting opening and closing steel wire rope reel end cover fastening bolt convenient to clamp comprises a supporting rod, a moving rod is connected into the supporting rod in a sliding mode, and a bottom support is attached to the top of the moving rod. A bolt clamping rod is attached to the top of the bottom support, and the bolt clamping rod is installed on the portal crane lifting opening and closing steel wire rope reel end cover. Clamping blocks are slidably connected into the moving rods, the inner ends of the clamping blocks extend into the clamping grooves to form clamping mechanisms, and the clamping grooves are formed in the moving rods at equal intervals. According to the portal crane lifting opening and closing steel wire rope reel end cover fastening bolt convenient to clamp, the supporting rod is installed, the supporting rod extends into the portal crane lifting opening and closing steel wire rope reel end cover, then the supporting rod drives the bottom support to jack the bolt clamping rod, and then the clamping effect is achieved, so that another person can conveniently operate in a narrow space; therefore, the bolt clamping rod is disassembled and assembled, and the operation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of end covers of hoisting and opening and closing wire rope drums for door machines, in particular to an end cover fastening bolt of the hoisting and opening and closing wire rope drums for door machines which is convenient for clamping. Background Art

[0002] The function of the wire rope drum end cover fastening bolts is to fix the end cover on the drum to ensure that the wire rope is fixed on the drum and wound smoothly. If the bolts are loose or not tightened in place, it may cause the end cover to shift, the wire rope to fall off or uneven winding, which may lead to safety accidents;

[0003] When disassembling and repairing the existing gantry crane hoisting opening and closing wire rope drum reducer, the drum end cover fastening bolts need to be loosened and tightened in two steps. Due to the narrow space in the machine room and construction needs, maintenance personnel have to stand side by side, and the standing position is awkward. In addition, the original maintenance process is not easy to align the bolts with the screw holes, resulting in inconvenience in loosening and tightening the bolts, and the limbs cannot fully exert force, which affects the maintenance quality and consumes a lot of physical strength and time;

[0004] In order to solve the above defects, a steel wire rope fixing structure for a drum with publication number CN208516710U is disclosed, which fixes a joint bolt at the end of the steel wire rope, and the joint bolt is fixed to the drum through a fixing bracket, and the steel wire rope is fixed to the drum through a detachable assembly structure, which effectively improves the assembly efficiency, facilitates maintenance, reduces production costs, and does not require high-temperature operation during the assembly process, thereby ensuring the safety of assembly personnel and eliminating safety hazards;

[0005] In actual use of the above device, although the purpose of fixing is achieved by connecting bolts, when operating in some narrow areas, the small operating space leads to inconvenient disassembly and assembly, which increases the difficulty of operation.

[0006] Therefore, we have proposed a door crane lifting and opening and closing wire rope drum end cover fastening bolt that is easy to position and can solve the above problems well. Utility Model Content

[0007] The purpose of the utility model is to provide a fastening bolt for the end cover of the lifting and closing wire rope drum of a door machine which is easy to position, so as to solve the problem raised by the above-mentioned background technology that when operating in a narrow area in the current market, the small operating space leads to inconvenient disassembly and assembly, thereby increasing the difficulty of operation.

[0008] To achieve the above purpose, the utility model provides the following technical solutions: a fastening bolt for the end cover of a hoisting and opening and closing wire rope drum of a gantry crane that is easy to position, comprising a support rod, a shift rod is slidably connected inside the support rod, and a bottom bracket is attached to the top of the shift rod;

[0009] It further includes:

[0010] A bolt clamping rod is attached to the top of the bottom bracket, and the bolt clamping rod is installed on the end cover of the hoisting and opening / closing wire rope reel of the portal machine;

[0011] A clamping block is slidably connected inside the moving rod, and the inner end of the clamping block extends into the inside of the clamping groove to form a clamping mechanism. The clamping grooves are equally spaced inside the moving rod. The outer end of the clamping block is connected to a first spring, and the outer end of the first spring is connected inside the support rod. The outer end of the clamping block is connected to a first pulling rope, and the bottom of the first pulling rope extends out of the inside of the support rod to form a sliding mechanism.

[0012] Preferably, the bottom of the inner end of the clamping block is arc-shaped, and the top of the inner end of the clamping block is right-angled.

[0013] Preferably, a roller is attached to the bent portion of the first pulling rope, and the roller is connected inside the support rod through a bearing.

[0014] Preferably, a convex block is slidably connected to the top of the bottom bracket, and the outer end of the convex block extends into the inside of the groove to form a clamping mechanism. The groove is opened inside the bottom bracket.

[0015] Preferably, the inner end of the convex block is connected to a second spring, and the inner end of the second spring is connected inside the moving rod.

[0016] Preferably, the inner end of the convex block is connected to a second pulling rope, and the bottom of the second pulling rope is connected to the top of the inner end of the pressing rod. The pressing rod is slidably connected inside the moving rod.

[0017] Preferably, the inner end of the pressing rod is connected to a third spring, and the third spring is arranged inside the moving rod.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: The fastening bolt of the end cover of the hoisting and opening / closing wire rope reel of the portal machine that is convenient for positioning is convenient to use in a narrow space and improves adaptability. The support rod can push the bolt clamping rod, thus facilitating disassembly and assembly. And through the movement of the clamping block, the length of the moving rod can be adjusted, thereby improving adaptability. The specific content is as follows:

[0019] (1) A support rod is provided. By inserting the support rod into the end cover of the hoisting and opening / closing wire rope reel of the portal machine, and then driving the bottom bracket through the support rod to push the bolt clamping rod, the function of positioning is achieved, so that another person can operate in a narrow space, thus disassembling and assembling the bolt clamping rod, and reducing the operation difficulty;

[0020] (2) A clamping block is provided. By pulling the first pulling rope, the first pulling rope drives the clamping block to move, and then the moving rod can slide inside the support rod, so that the length of the moving rod can be adjusted according to different usage requirements, thereby improving the adaptability;

[0021] (3) A roller is provided. The bending part of the first pulling rope is attached to the roller, and the roller is connected to the inside of the support rod through a bearing. Then the roller can reduce the wear of the first pulling rope, thereby improving the service life of the first pulling rope;

[0022] (4) A second spring is provided. The inner end of the bump is connected to the second spring, and the inner end of the second spring is connected to the inside of the moving rod. Then the second spring can push the bump to play a limiting role, thereby improving the stability of the bump;

[0023] (5) A bump is provided. The inner end of the bump is connected to a second pulling rope, and the bottom of the second pulling rope is connected to the top of the inner end of the pressing rod. And the pressing rod is slidably connected to the inside of the moving rod. Then the movement of the bump can be engaged or disengaged with the groove, which is convenient for replacing the bottom support. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0025] Figure 2 is a structural schematic diagram of the moving rod of the present utility model after movement;

[0026] Figure 3 is a front view structural schematic diagram of the clamping block of the present utility model;

[0027] Figure 4 is a bottom view structural schematic diagram of the clamping block of the present utility model;

[0028] Figure 5 is a front sectional structural schematic diagram of the support rod of the present utility model;

[0029] Figure 6 is a front view structural schematic diagram of the bump of the present utility model.

[0030] In the figure: 1, support rod; 2, moving rod; 3, bottom support; 4, bolt clamping rod; 5, clamping block; 6, card slot; 7, first spring; 8, first pulling rope; 9, roller; 10, bump; 11, groove; 12, second spring; 13, second pulling rope; 14, pressing rod; 15, third spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0032] Embodiment 1: The present utility model solves the problem that when operating in a narrow area, due to the narrow operating space, the disassembly and assembly are not convenient enough, thus increasing the operation difficulty. By means of the support rod 1, the operation can be facilitated, and it is disclosed that:

[0033] Support rod 1, a moving rod 2 is slidably connected inside the support rod 1, and a bottom support 3 is attached to the top of the moving rod 2; further included are: a bolt clamping rod 4 is attached to the top of the bottom support 3, and the bolt clamping rod 4 is installed on the end cover of the hoisting and opening / closing wire rope reel of the portal crane; a clamping block 5 is slidably connected inside the moving rod 2, and the inner end of the clamping block 5 extends into the inside of the clamping slot 6 to form a clamping mechanism, and the clamping slots 6 are equally spaced and opened inside the moving rod 2;

[0034] Reference Figure 1 , when it is necessary to disassemble and assemble the end cover of the hoisting and opening / closing wire rope reel of the portal crane, the support rod 1 is inserted into the hoisting and opening / closing wire rope reel of the portal crane, and then the support rod 1 drives the moving rod 2 to push the bottom support 3 to move, so that the bottom support 3 is attached to the bolt clamping rod 4, thereby achieving the function of clamping the bolt clamping rod 4. Then, another operator can use a wrench to turn the bolt clamping rod 4, so as to rotate the bolt clamping rod 4, and then the bolt clamping rod 4 can disassemble and assemble the reel end cover, thus achieving the purpose of facilitating the operation and reducing the operation difficulty;

[0035] Embodiment 2: The present utility model solves the problem that the moving rod 2 in Embodiment 1 cannot be adjusted as needed. By moving the clamping block 5, the purpose of moving the moving rod 2 can be achieved, thereby improving the adaptability, and it is disclosed that:

[0036] The outer end of the clamping block 5 is connected to a first spring 7, and the outer end of the first spring 7 is connected inside the support rod 1. And the outer end of the clamping block 5 is connected to a first pulling rope 8, and the bottom of the first pulling rope 8 extends out of the inside of the support rod 1 to form a sliding mechanism. The bottom of the inner end of the clamping block 5 is arc-shaped, and the top of the inner end of the clamping block 5 is right-angled. The bent part of the first pulling rope 8 is attached to a roller 9, and the roller 9 is connected to the inside of the support rod 1 through a bearing;

[0037] Reference Figures 1 to 5, for the hoisting and closing wire rope drums of the door machine with different lengths, by pulling the moving rod 2, the moving rod 2 drives the clamping groove 6 to move, and then the clamping groove 6 moves to squeeze the clamping block 5, so that the clamping block 5 slides into the inside of the support rod 1 under extrusion. And the movement of the clamping block 5 will squeeze the first spring 7, so that the first spring 7 is compressed under force. Then the clamping block 5 will disengage from the clamping of the clamping groove 6, and then the length of the moving rod 2 can be adjusted. After adjusting to the appropriate position, the clamping block 5 is pushed into the inside of the clamping groove 6 by the force of the first spring 7 to form a clamping, so as to achieve the purpose of fixing the moving rod 2. And by pulling the first pulling rope 8, the first pulling rope 8 moves to drive the clamping block 5 to move through the roller 9, and then the movement of the clamping block 5 will disengage from the clamping of the clamping groove 6, so that the moving rod 2 can move reversely inside the support rod 1, so as to achieve the purpose of easy adjustment;

[0038] Embodiment 3: The present invention solves the problem that the existing bottom support 3 is prone to sliding due to wear after long-term use. The replacement of the bottom support 3 can be achieved through the movement of the convex block 10, and discloses:

[0039] The top of the bottom support 3 is slidably connected with a convex block 10, and the outer end of the convex block 10 extends into the inside of the groove 11 to form a clamping mechanism. And the groove 11 is opened inside the bottom support 3. The inner end of the convex block 10 is connected with a second spring 12, and the inner end of the second spring 12 is connected inside the moving rod 2. The inner end of the convex block 10 is connected with a second pulling rope 13, and the bottom of the second pulling rope 13 is connected to the top of the inner end of the pressing rod 14. And the pressing rod 14 is slidably connected inside the moving rod 2. The inner end of the pressing rod 14 is connected with a third spring 15, and the third spring 15 is arranged inside the moving rod 2;

[0040] Reference Figure 5 and Figure 6 , by pressing the pressing rod 14, the pressing rod 14 moves to squeeze the third spring 15, so that the third spring 15 is compressed under force. And the movement of the pressing rod 14 drives the second pulling rope 13 to move, and then the movement of the second pulling rope 13 drives the convex block 10 to move, so that the convex block 10 moves out of the clamping of the groove 11. And the movement of the convex block 10 will squeeze the second spring 12, so that the second spring 12 is compressed under force, so that the bottom support 3 can be disassembled. Then the bottom support 3 can be replaced after wear. And the convex block 10 is pushed into the inside of the groove 11 by the force of the second spring 12 to form a clamping, so as to fix the bottom support 3.

[0041] Working principle: When using the fastening bolt for the end cover of the hoisting and closing wire rope drum of the door machine that is easy to position, first, reference Figure 1, when it is necessary to disassemble and assemble the end cover of the hoisting and closing wire rope drum of the door machine, insert the support rod 1 into the hoisting and closing wire rope drum of the door machine, and then make the support rod 1 drive the moving rod 2 to push the bottom support 3 to move. Then, another operator can use a wrench to turn the bolt clamping rod 4, so that the bolt clamping rod 4 can disassemble and assemble the drum end cover, thus achieving the purpose of easy operation and reducing the operation difficulty;

[0042] Reference Figures 1 to 5 , for the hoisting and closing wire rope drums of different lengths of the door machine, by pulling the moving rod 2, the moving rod 2 drives the card slot 6 to move, and then the card slot 6 moves to squeeze the clamping block 5, so that the clamping block 5 will disengage from the clamping of the card slot 6, and then the length of the moving rod 2 can be adjusted. After adjusting to the appropriate position, the first spring 7 forces the clamping block 5 to extend into the interior of the card slot 6 to form a clamping, so as to achieve the purpose of fixing the moving rod 2. And by pulling the first pull rope 8, the first pull rope 8 moves to drive the clamping block 5 to move through the roller 9, and then the clamping block 5 moves to disengage from the clamping of the card slot 6, so that the moving rod 2 can move reversely inside the support rod 1;

[0043] Reference Figure 5 And Figure 6 , by pressing the pressing rod 14, the pressing rod 14 moves to squeeze the third spring 15, and then the second pull rope 13 moves to drive the convex block 10 to move, so that the convex block 10 moves out of the clamping of the groove 11, and the convex block 10 moves to squeeze the second spring 12, so that the bottom support 3 can be disassembled. Then, the bottom support 3 can be replaced after wear, and the second spring 12 forces the convex block 10 to extend into the interior of the groove 11 to form a clamping, so as to fix the bottom support 3.

[0044] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fastening bolt for an end cover of a hoisting and opening and closing wire rope drum of a gantry crane that is easy to position, comprising a support rod (1), a shift rod (2) being slidably connected inside the support rod (1), and a bottom bracket (3) being attached to the top of the shift rod (2); It is characterized in that Also includes: A bolt clamping rod (4) is attached to the top of the base (3), and the bolt clamping rod (4) is installed on the end cover of the hoisting and opening and closing wire rope drum of the door crane; The interior of the shift rod (2) is slidably connected to a clamping block (5), and the inner end of the clamping block (5) extends into the interior of a clamping slot (6) to form a clamping mechanism, and the clamping slots (6) are arranged at equal intervals inside the shift rod (2), the outer end of the clamping block (5) is connected to a first spring (7), and the outer end of the first spring (7) is connected to the interior of the support rod (1), and the outer end of the clamping block (5) is connected to a first pull rope (8), and the bottom of the first pull rope (8) extends out of the interior of the support rod (1) to form a sliding mechanism.

2. The fastening bolt for the end cover of the hoisting and opening and closing wire rope drum of a door crane that is easy to position according to claim 1 is characterized in that: The bottom of the inner end of the card block (5) is arranged in an arc shape, and the top of the inner end of the card block (5) is arranged at a right angle.

3. The fastening bolt for the end cover of the hoisting and opening and closing wire rope drum of a door crane that is easy to position according to claim 1 is characterized in that: A roller (9) is fitted at the bent portion of the first pull rope (8), and the roller (9) is connected to the inside of the support rod (1) via a bearing.

4. The fastening bolt for the end cover of the hoisting and opening and closing wire rope drum of a door crane that is easy to lock in position according to claim 1 is characterized in that: A protrusion (10) is slidably connected to the top of the base (3), and the outer end of the protrusion (10) extends into the interior of the groove (11) to form a snap-fit ​​mechanism, and the groove (11) is provided inside the base (3).

5. The fastening bolt for the end cover of the hoisting and opening and closing wire rope drum of a door crane that is easy to position according to claim 4 is characterized in that: The inner end of the protrusion (10) is connected to a second spring (12), and the inner end of the second spring (12) is connected to the interior of the shift rod (2).

6. The fastening bolt for the end cover of the hoisting and opening and closing wire rope drum of a door crane that is easy to position according to claim 4 is characterized in that: The inner end of the protrusion (10) is connected to a second pull rope (13), and the bottom of the second pull rope (13) is connected to the top of the inner end of the pressing rod (14), and the pressing rod (14) is slidably connected to the inside of the shift rod (2).

7. The fastening bolt for the end cover of the hoisting and opening and closing wire rope drum of a door crane that is easy to lock in position according to claim 6 is characterized in that: The inner end of the pressing rod (14) is connected to a third spring (15), and the third spring (15) is arranged inside the shifting rod (2).

Images