Fixed pulley block mounting structure of crane

By introducing a combination structure of servo motor-driven lead screw and hydraulic cylinder into the fixed pulley block, the problems of difficult maintenance and poor adjustment accuracy of traditional fixed pulley blocks are solved, enabling rapid installation and stable rotation, improving work efficiency and reducing maintenance costs.

CN223804794UActive Publication Date: 2026-01-16YIYANG ZIJING WELFARE CASTING
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Patent Information

Application Number
CN202520355006.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-01-16
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

Traditional fixed pulley blocks suffer from problems such as difficult maintenance due to their integral structure, poor axis adjustment accuracy, premature bearing wear due to vibration transmission, and inconvenient lubrication system maintenance.

Method used

It adopts a base plate, bracket, moving block, hydraulic cylinder and servo motor driven screw structure. The servo motor drives the screw to move the moving block to adjust the position of the guide wheel. Combined with the hydraulic cylinder, the lateral position of the guide wheel is adjusted. The guide wheel can be quickly installed and rotated stably by using a slot. The design of the cage and rolling column ensures the stable rotation of the guide wheel.

Benefits of technology

It enables quick installation and adjustment of the fixed pulley block, improves work efficiency, ensures stable rotation of the guide wheel, reduces maintenance difficulty, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of crane fixed pulley block installation structures, in particular to a crane fixed pulley block installation structure which comprises a bottom plate, a first support, a second support, a movable block and a hydraulic cylinder, the first support is fixed in the middle of one side of the bottom plate, a first installation groove is formed in the first support, and a second installation groove is formed in one side of the first installation groove. A lead screw is rotatably mounted in the second mounting groove, moving blocks are slidably mounted in the second mounting groove, the moving blocks are in threaded connection with the lead screw, a guide rail is fixedly mounted between the moving blocks, a fixed wheel is fixed to the surface of the guide rail, and a hydraulic cylinder is mounted on the surface of each moving block in an embedded mode; the two sides of the lower end of the bottom plate are each fixedly provided with a second support. According to the device, the second guide wheel can be quickly mounted, the position between the first guide wheel and the second guide wheel can be adjusted, the quick mounting and adjusting effect of the fixed pulley block of the crane is achieved, and the problems that an existing fixed pulley block is not changed to disassemble and assemble and is not easy to adjust are solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of crane fixed pulley set mounting structure field, in particular to a kind of crane fixed pulley set mounting structure. BACKGROUND

[0002] Traditional fixed pulley set has the following defects:

[0003] 1, integral structure leads to maintenance difficulty, single pulley damage needs overall replacement;

[0004] 2, axis adjustment relies on gasket increase and decrease, poor precision and time-consuming;

[0005] 3, vibration conduction leads to bearing premature wear;

[0006] 4, lubrication system maintenance is inconvenient, oil waste is serious.

[0007] In the prior art, although certain fixed pulley set working effect can be realized in use, the defects are: the existing fixed pulley set has the problems of disassembly and assembly and is not easy to adjust, so that the workers cannot quickly work when installing and debugging the fixed pulley set, which affects the overall work efficiency. In view of this, we propose a crane fixed pulley set mounting structure to solve the above problems. INVENTION CONTENTS

[0008] The utility model aims at the problems in the background art, and proposes a crane fixed pulley set mounting structure.

[0009] The technical scheme of the utility model: a crane fixed pulley set mounting structure, comprising bottom plate, support one, support two, moving block and hydraulic cylinder, the bottom plate one side middle part is fixed with support one, the support one inside is equipped with installation groove one, the installation groove one one side is equipped with installation groove two, the installation groove two inside is rotatably installed with screw rod, the installation groove two inside is slidably installed with moving block, the moving block is connected with screw rod threadedly, the moving block is fixedly installed with guide rail between, the guide rail surface is fixed with fixed wheel, the moving block surface is embeddedly installed with hydraulic cylinder, the bottom plate lower end two sides are respectively fixed with support two, the support two each side is equipped with three;

[0010] The device is used, the guide wheel between the support one can be driven by servo motor drive screw rod moving block movement mode position adjustment, convenient adaptation two different guide wheel two installation, guide wheel two is fixed on the shaft and the fixed seat upper end, fixed seat can be lifted to a certain height after the shaft is taken out from the slot inside, realizes the effect of quick installation guide wheel two, support two between can install four guide wheel two, can realize the winding between the wire harness of guide wheel one and guide wheel two by using guide wheel two of different installation position, the horizontal position of guide wheel one can be adjusted by hydraulic cylinder, the adjustment method can realize the traction use effect of guide wheel two of different position, the device can realize the quick installation and adjustment effect of crane pulley block, has higher practicality.

[0011] Preferably, the support two is internally provided with a clamping groove, the clamping groove is located on one side of the support two, and the bottom of the clamping groove is arc-shaped. The clamping groove with side opening can facilitate the quick installation of the fixed seat and the guide wheel two, and the arc-shaped bottom can facilitate the clamping of the bearing on one side of the shaft in the interior, thereby realizing the stable rotation effect of the guide wheel two.

[0012] Preferably, the clamping groove is internally provided with a fixed seat, the fixed seat is rotatably installed on one side of the shaft, the other end of the shaft is placed on the upper end of the support two in the middle through a bearing, and the shaft is fixedly provided with a guide wheel two in the middle. The fixed seat can be clamped in the clamping groove, and the protrusions on both sides are fixed outside the clamping groove, so that the horizontal position of the shaft is kept unchanged, and the stable rotation effect of the guide wheel two is ensured.

[0013] Preferably, the fixed wheel is rotatably installed with a guide wheel one, a retainer is arranged between the inner wall of the guide wheel one and the fixed wheel, and a rolling column is embedded and installed in the retainer. The design of the retainer and the rolling column between the fixed wheel and the guide wheel one is inspired by the design of the fixed bearing, so as to realize the stable rotation effect of the guide wheel one.

[0014] Preferably, the servo motor is fixedly connected with the output shaft of the servo motor on one side of the fixed seat, and the servo motor can drive the screw rod to rotate to realize the adjustment of the movement of the moving block in the installation groove two, thereby realizing the adjustment of the longitudinal position of the guide wheel one.

[0015] Preferably, the hydraulic rod is inserted into one side of the hydraulic cylinder, and one end of the hydraulic rod is fixedly connected with the fixed wheel. The hydraulic cylinder can drive the hydraulic rod to adjust the horizontal position of the fixed wheel on the upper end of the guide rail, thereby adjusting the horizontal position of the guide wheel one between the supports one.

[0016] Preferably, the support two is internally provided with a fixed seat, the fixed seat is rotatably installed on one side of the shaft, the other end of the shaft is placed on the upper end of the support two in the middle through a bearing, and the shaft is fixedly provided with a guide wheel two in the middle. The fixed seat can be clamped in the clamping groove, and the protrusions on both sides are fixed outside the clamping groove, so that the horizontal position of the shaft is kept unchanged, and the stable rotation effect of the guide wheel two is ensured.

[0017] The bottom plate is provided with a plurality of buckles arranged in an annular array at the upper end, which can facilitate the lifting of the device by an external lifting machine.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] Firstly, the utility model can realize the moving effect of the moving block by the mode of driving the lead screw by the servo motor, so that the longitudinal position of the guide wheel one can be conveniently adjusted, and the hydraulic cylinder can drive the guide wheel one to move horizontally.

[0020] Secondly, based on the beneficial effect one, the quick installation of the guide wheel two can be realized by the clamping groove designed by the side buckle, and the guide wheel two installed by the plurality of supports two can realize the installation effect at different positions in cooperation with the guide wheel one, so that the winding of the wire harness is facilitated.

[0021] Of course, it is not necessary for any product implementing the utility model to simultaneously achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

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

[0023] Figure 2 is a top view schematic view of the utility model;

[0024] Figure 3 is a front view schematic view of the utility model;

[0025] Figure 4 is a side view schematic view of the utility model;

[0026] Figure 5 is a Figure 2 is an enlarged schematic view of the structure A.

[0027] REFERENCE SIGNS:

[0028] 1, bottom plate; 2, buckle; 3, support one; 4, servo motor; 5, lead screw; 6, moving block; 7, hydraulic cylinder; 8, fixed wheel; 9, guide wheel one; 10, guide wheel two; 11, clamping groove; 12, support two; 13, installation groove one; 14, installation groove two; 15, fixed seat; 16, rotating shaft; 17, hydraulic rod; 18, partition plate; 19, guide rail. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation manner of the utility model is described in detail below with reference to the drawings.

[0030] Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be practiced according to other embodiments that can not be described in detail herein, and the skilled person can make similar extensions without departing from the scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0031] Secondly, the present application is described in detail in combination with the schematic diagram, and in the detailed description of the embodiments of the present application, the sectional view of the device structure is partially enlarged without the general proportion for the convenience of illustration, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in the actual manufacture.

[0032] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below in combination with the drawings.

[0033] Embodiment 1

[0034] Please refer to Figures 1-5 As shown in the figure, the present embodiment is a kind of crane fixed pulley installation structure, including bottom plate 1, support one 3, support two 12, moving block 6 and hydraulic cylinder 7, the middle part of one side of bottom plate 1 is fixed with support one 3, support one 3 is internally provided with installation groove one 13, installation groove one 13 is provided with installation groove two 14 on one side, screw rod 5 is rotatably installed in installation groove two 14, moving block 6 is slidably installed in installation groove two 14, moving block 6 is threadedly connected with screw rod 5, guide rail 19 is fixedly installed between moving block 6, fixed wheel 8 is fixed on the surface of guide rail 19, hydraulic cylinder 7 is embedded and installed on the surface of moving block 6, support two 12 is fixed on both sides of the lower end of bottom plate 1, and three are provided on each side of support two 12;

[0035] The guide wheel between support one 3 can be driven by servo motor 4 to drive moving block 6 to move to adjust the position, which is convenient for adapting the installation of different guide wheel two 10, guide wheel two 10 is fixed on the upper end of rotating shaft 16 and fixed seat 15 by support, fixed seat 15 can be lifted to a certain height and then guide wheel two 10 is pulled out from the inside of clamping groove 11, so that guide wheel two 10 can be quickly installed, four guide wheel two 10 can be installed between support two 12, and the winding between guide wheel one 9 and guide wheel two 10 can be realized by using guide wheel two 10 in different installation positions, and the position of guide wheel one 9 can be adjusted by hydraulic cylinder 7, so that the traction effect of guide wheel two 10 in different positions can be realized, and the present application can realize the quick installation and adjustment effect of crane pulley group, and has high practicability.

[0036] Embodiment 2

[0037] Please refer toFigures 1-5 As shown, the embodiment is based on the embodiment 1, further comprising: the bracket two 12 is internally provided with a clamping groove 11, the opening of the clamping groove 11 is located at one side of the bracket two 12, the bottom of the clamping groove 11 is designed in an arc shape, the clamping groove 11 designed with a side opening can facilitate the quick installation of the fixed seat 15 and the guide wheel two 10, and the arc-shaped design of the bottom can facilitate the clamping of the bearing on one side of the shaft 16 inside, so as to realize the stable rotation effect of the guide wheel two 10.

[0038] The clamping groove 11 is internally provided with a fixed seat 15, the fixed seat 15 is rotatably installed on one side of the shaft 16, the other end of the shaft 16 is placed on the upper end of the bracket two 12 in the middle through a bearing, the shaft 16 is fixedly provided with a guide wheel two 10 in the middle, the fixed seat 15 can be clamped inside the clamping groove 11, and the positions of the protrusions on both sides are fixed outside the clamping groove 11, so as to ensure that the transverse position of the shaft 16 does not change, and the stable rotation effect of the guide wheel two 10 is ensured.

[0039] The guide wheel one 9 is rotatably installed outside the fixed wheel 8, the inner wall of the guide wheel one 9 and the fixed wheel 8 are provided with a retainer, and the retainer is internally embedded with a rolling column, the design of the retainer and the rolling column between the fixed wheel 8 and the guide wheel one 9 is designed by referring to the design of the fixed bearing, so as to realize the stable rotation effect of the guide wheel one 9.

[0040] The servo motor 4 is fixedly installed in the mounting groove one 13, the output shaft of the servo motor 4 is fixedly connected with the rotating center of one side of the lead screw 5, the servo motor 4 can drive the lead screw 5 to rotate to realize the movement of the moving block 6 inside the mounting groove two 14, and the longitudinal position of the guide wheel one 9 is adjusted.

[0041] The hydraulic rod 17 is inserted into one side of the hydraulic cylinder 7, one end of the hydraulic rod 17 is fixedly connected with one side of the fixed wheel 8, the hydraulic cylinder 7 can drive the hydraulic rod 17 to adjust the transverse position of the fixed wheel 8 on the upper end of the guide rail 19, and the transverse position of the guide wheel one 9 between the brackets one 3 is adjusted.

[0042] The bracket two 12 is fixedly provided with a partition plate 18 in the middle, the partition plate 18 only exists in the bracket two 12 in the middle, and the partition plate 18 can ensure that there is no influence between the shafts 16 on both sides.

[0043] The bottom plate 1 is provided with a plurality of buckles 2 arranged in an annular array on the upper end, the buckles 2 can facilitate the lifting and handling of the device by an external lifting machine.

[0044] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A hoist trolley mounting structure comprising a base plate (1), a bracket one (3), a bracket two (12), a moving block (6) and a hydraulic cylinder (7), characterized in that: The middle part of one side of the bottom plate (1) is fixed with a support one (3), the inside of the support one (3) is provided with a mounting groove one (13), one side of the mounting groove one (13) is provided with a mounting groove two (14), the inside of the mounting groove two (14) is rotatably provided with a lead screw (5), the inside of the mounting groove two (14) is slidably provided with a moving block (6), the moving block (6) is threadedly connected with the lead screw (5), the moving block (6) is fixedly provided with a guide rail (19) between them, the surface of the guide rail (19) is fixedly provided with a fixed wheel (8), the surface of the moving block (6) is embeddedly provided with a hydraulic cylinder (7), the lower end of the bottom plate (1) is fixed with a support two (12) on both sides, each side of the support two (12) is provided with three.

2. A crane trolley wheel block mounting structure according to claim 1, characterised in that: The inside of the support two (12) is provided with a clamping groove (11), the opening of the clamping groove (11) is located on one side of the support two (12), and the bottom of the clamping groove (11) is designed in an arc shape.

3. A crane trolley wheel block mounting structure according to claim 2, characterised in that: The inside of the clamping groove (11) is placed with a fixing seat (15), one side of the fixing seat (15) is rotatably provided with a rotating shaft (16), the other end of the rotating shaft (16) is placed on the upper end of the middle support two (12) through a bearing, and the rotating shaft (16) is fixedly provided with a guide wheel two (10) in the middle part.

4. A crane trolley wheel block mounting structure according to claim 1, characterized in that: The outer ring of the fixed wheel (8) is rotatably provided with a guide wheel one (9), and a retainer is arranged between the inner wall of the guide wheel one (9) and the fixed wheel (8), and a rolling column is embeddedly arranged in the retainer.

5. A crane trolley wheel block mounting structure according to claim 1, characterized in that: The inside of the mounting groove one (13) is fixedly provided with a servo motor (4), and the output shaft of the servo motor (4) is fixedly connected with the rotating center of one side of the lead screw (5).

6. A crane trolley wheel block mounting structure according to claim 1, characterized in that: One side of the inside of the hydraulic cylinder (7) is inserted with a hydraulic rod (17), and one end of the hydraulic rod (17) is fixedly connected with one side of the fixed wheel (8).

7. A crane trolley wheel block mounting structure according to claim 1, characterized in that: The middle part of the support two (12) is fixedly provided with a partition plate (18), and the partition plate (18) only exists in the middle support two (12).

8. A crane trolley wheel block mounting structure according to claim 1, characterized in that: The upper end of the bottom plate (1) is provided with a buckle (2) which is arranged in an annular array.