Crawler crane frame fixing mechanism for driving wheel installation

Abstract

The utility model discloses a crawler crane frame fixing mechanism for mounting a driving wheel in the technical field of crawler cranes, which comprises a base and the driving wheel, a positioning hole and a mounting hole are arranged at the lower part of the base, a fixing shaft is arranged in the positioning hole and the mounting hole, an external thread is arranged at the right end of the surface of the fixing shaft, and the driving wheel is mounted on the fixing shaft. A nut is arranged at the right end of the fixing shaft, positioning grooves are formed in the upper inner wall and the lower inner wall of the positioning hole, a through hole is formed in the middle of the fixing shaft, a cavity is formed in the left end of the through hole, a push rod is arranged in the through hole, through grooves are formed in the upper side and the lower side of the cavity, positioning rods are arranged in the through grooves, and second connecting blocks are arranged on the positioning rods. The spring pushes the push rod to move rightwards, one end of the positioning rod rotates into the positioning groove, the fixing shaft achieves the self-locking function, the fixing shaft is stably installed on the base, and the driving wheel is stably fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of crawler cranes, in particular to a crawler crane frame fixing mechanism for driving wheel installation. BACKGROUND

[0002] The crawler crane is a large crane, and the crawler crane is large in size and inconvenient to transport. The crawler crane is disassembled into parts for transportation. When in use, the crawler crane is transported to a use site for on-site assembly and use. In a crawler crane driving wheel disclosed in Chinese patent document (application number: CN201920975364.X), a plurality of transmission wheels are arranged to support the crawler belt, and the transmission stability between the transmission wheel and the crawler belt is improved. The crawler crane needs to be disassembled for transportation and assembled on site. The driving wheel of the crawler crane needs to be quickly installed and completed, and the stability of the installation needs to be ensured.

[0003] Therefore, the utility model provides a crawler crane frame fixing mechanism for driving wheel installation UTILITY MODEL CONTENTS

[0004] The utility model discloses a crawler crane frame fixing mechanism for driving wheel installation, which solves the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a crawler crane frame fixing mechanism for driving wheel installation, including base, driving wheel, the lower part of base is provided with positioning hole and mounting hole, the positioning hole and mounting hole are provided with fixed shaft in, the surface right end of fixed shaft is provided with outer thread, the right end of fixed shaft is provided with nut, the upper and lower inner walls of positioning hole are all provided with positioning groove, the middle part of fixed shaft is provided with through -hole, the left end of through -hole is provided with cavity, the through -hole is provided with push rod in, the both sides of cavity are provided with through groove, the through groove is provided with positioning rod, the second connecting block is arranged on the positioning rod, the first connecting block is arranged on the both sides of push rod, the connecting rod is arranged on the first connecting block, the left end of push rod is provided with guide rod, and the spring is sleeved on the guide rod.

[0006] Further, the left end of the fixed shaft is provided with a guide hole, and the guide hole cooperates with the guide rod.

[0007] Further, the positioning rod is fixed on the inner wall of the through groove through the pin shaft.

[0008] Further, the connecting rod is connected with the first connecting block and the second connecting block at both ends, and the connecting rod is connected with the first connecting block and the second connecting block at both ends through the pin shaft respectively.

[0009] Further, the middle part of the driving wheel is provided with a hole matched with the fixed shaft.

[0010] Compared with the prior art, the utility model has the advantages that the spring pushes the push rod to move right, the first connecting block arranged on the push rod pushes the second connecting block through the connecting rod, the second connecting block pushes the positioning rod to rotate, one end of the positioning rod rotates into the positioning groove, the fixed shaft realizes the self-locking function, the fixed shaft is stably installed on the base, and the driving wheel is stably fixed, simultaneously, the nut is screwed, the positioning rod abuts against the inner wall of the positioning groove, and the fixing stability of the driving wheel is further enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is the utility model structural schematic diagram;

[0012] Fig. 2 It is the utility model fixed axle installation structure schematic diagram;

[0013] Fig. 3 It is the utility model positioning rod contraction to the through groove schematic diagram.

[0014] In the drawing: 1, base;2, positioning hole;21, mounting hole;3, driving wheel;4, fixed shaft;41, guide hole;5, external thread;6, nut;7, positioning groove;8, through hole;9, push rod;10, through groove;11, positioning rod;12, first connecting block;13, second connecting block;14, connecting rod;15, guide rod;16, spring;17, cavity. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative work belong to the range of protection of the utility model.

[0016] Please refer to Figs. 1-3This utility model provides a technical solution: a tracked crane frame fixing mechanism for installing drive wheels, including a base 1 and a drive wheel 3. The lower part of the base 1 is provided with a positioning hole 2 and a mounting hole 21. A fixing shaft 4 is provided in the positioning hole 2 and the mounting hole 21. An external thread 5 is provided on the right end of the surface of the fixing shaft 4. A nut 6 is provided on the upper right end of the fixing shaft 4. Positioning grooves 7 are provided on both the upper and lower inner walls of the positioning hole 2. A through hole 8 is provided in the middle of the fixing shaft 4. A cavity 17 is provided on the left end of the through hole 8. A push rod 9 is provided in the through hole 8. Through grooves are provided on both the upper and lower sides of the cavity 17. 10. A positioning rod 11 is provided in the through groove 10. A second connecting block 13 is provided on the positioning rod 11. A first connecting block 12 is provided on both the upper and lower sides of the push rod 9. A connecting rod 14 is provided on the first connecting block 12. A guide rod 15 is provided on the left end of the push rod 9. A spring 16 is sleeved on the guide rod 15. The drive wheel 3 is installed and placed in the middle of the base 1, so that the hole in the middle of the drive wheel 3 is aligned with the positioning hole 2 and the mounting hole 21. The push rod 9 is pushed and moves to the left. The first connecting block 12 on the push rod 9 is driven by the connecting rod 14. Move the second connecting block 13. The first connecting block 13 rotates and retracts into the through groove 10, allowing the fixed shaft 4 to pass through the mounting hole 21 and the drive wheel 3, so that the left end of the fixed shaft 4 is installed into the positioning hole 2. Release the push rod 9. The spring 16 pushes the push rod 9 to move to the right. The first connecting block 12 on the push rod 9 pushes the second connecting block 13 through the connecting rod 14. The second connecting block 13 pushes the positioning rod 11 to rotate. One end of the positioning rod 11 rotates into the positioning groove 7, and pushes the push rod 9 through the spring 16. The push rod 9 will not move to the left on its own, so that one end of the positioning rod 11 is in the positioning groove 7. Inside the positioning groove 7, the nut 6 is installed on the right end of the fixed shaft 4. The right end of the surface of the fixed shaft 4 is provided with an external thread 5. Rotating the nut 6, the nut 6 and the external thread 5 are engaged to fix the fixed shaft 4. During the fixing of the fixed shaft 4, one end of the positioning rod 11 presses against the inner wall of the positioning groove 7 and pushes the push rod 9 through the spring 16. The push rod 9 will not move to the left on its own, so that one end of the positioning rod 11 is in the positioning groove 7. Tighten the nut 6 to fix the fixed shaft 4. The fixed shaft 4 is stably installed and fixed, thereby quickly fixing and installing the drive wheel 3.

[0017] Among them, the left end of the fixed shaft 4 is provided with a guide hole 41, which cooperates with the guide rod 15. During the process of the push rod 9 driving the guide rod 15 to move, the guide hole 41 guides the movement of the guide rod 15.

[0018] The positioning rod 11 is fixed to the inner wall of the through groove 10 by a pin. The two ends of the connecting rod 14 are connected to the first connecting block 12 and the second connecting block 13. The two ends of the connecting rod 14 are connected to the first connecting block 12 and the second connecting block 13 by pins respectively. During the movement of the push rod 9, the positioning rod 11 rotates by the pin, and at the same time, the two ends of the connecting rod 11 rotate by the pin.

[0019] The middle part of the driving wheel 3 is provided with a hole matched with the fixed shaft 4, and the fixed shaft 4 is fixedly installed through the hole in the middle part of the driving wheel 3.

[0020] Working principle: the driving wheel 3 is placed in the middle part of the base 1, the hole in the middle part of the driving wheel 3 is aligned with the positioning hole 2 and the installation hole 21, the push rod 9 is pushed, the first connecting block 12 provided on the push rod 9 drives the second connecting block 13 through the connecting rod 14, the first connecting block 13 is rotated and retracted into the through slot 10, the fixed shaft 4 is passed through the installation hole 21 and the driving wheel 3, the left end of the fixed shaft 4 is installed into the positioning hole 2, the push rod 9 is loosened, the spring 16 pushes the push rod 9 to move right, the first connecting block 12 provided on the push rod 9 drives the second connecting block 13 through the connecting rod 14, the second connecting block 13 drives the positioning rod 11 to rotate, one end of the positioning rod 11 is rotated into the positioning groove 7, and the push rod 9 is pushed by the spring 16, so that the push rod 9 cannot be actively moved to the left, so that one end of the positioning rod 11 is in the positioning groove 7, the nut 6 is installed on the right end of the fixed shaft 4, the outer thread 5 is arranged on the surface of the right end of the fixed shaft 4, the nut 6 is rotated, the nut 6 is matched with the outer thread 5, the fixed shaft 4 is fixed, during the fixing process of the fixed shaft 4, one end of the positioning rod 11 abuts against the inner wall of the positioning groove 7, and the push rod 9 is pushed by the spring 16, so that the push rod 9 cannot be actively moved to the left, so that one end of the positioning rod 11 is in the positioning groove 7, the nut 6 is tightened, the fixed shaft 4 is fixed, the fixed shaft 4 is stably installed and fixed, so that the driving wheel 3 is quickly fixed and installed.

[0021] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A caterpillar crane frame fixing mechanism for driving wheel mounting, comprising a base (1), a driving wheel (3), characterized in that: The lower part of the base (1) is provided with a positioning hole (2) and a mounting hole (21), the positioning hole (2) and the mounting hole (21) are provided with a fixed shaft (4), the surface right end of the fixed shaft (4) is provided with an external thread (5), the upper right end of the fixed shaft (4) is provided with a nut (6), the upper and lower inner walls of the positioning hole (2) are provided with a positioning groove (7), the middle part of the fixed shaft (4) is provided with a through hole (8), the left end of the through hole (8) is provided with a cavity (17), the through hole (8) is provided with a push rod (9), the upper and lower sides of the cavity (17) are provided with a through slot (10), the through slot (10) is provided with a positioning rod (11), the positioning rod (11) is provided with a second connecting block (13), the upper and lower sides of the push rod (9) are provided with a first connecting block (12), the first connecting block (12) is provided with a connecting rod (14), the left end of the push rod (9) is provided with a guide rod (15), the guide rod (15) is provided with a spring (16).

2. A track crane frame fixation mechanism for drive wheel mounting according to claim 1, characterized in that: The left end of the fixed shaft (4) is provided with a guide hole (41), and the guide hole (41) is matched with the guide rod (15).

3. A track crane frame fixation mechanism for drive wheel mounting according to claim 1, characterized in that: The positioning rod (11) is fixed on the inner wall of the through slot (10) through a pin shaft.

4. A track crane frame fixation mechanism for drive wheel mounting according to claim 1, characterized in that: The two ends of the connecting rod (14) are connected with the first connecting block (12) and the second connecting block (13), and the two ends of the connecting rod (14) are connected with the first connecting block (12) and the second connecting block (13) through pin shafts respectively.

5. A track crane frame fixation mechanism for drive wheel mounting according to claim 1, characterized in that: The middle part of the driving wheel (3) is provided with a hole matched with the fixed shaft (4).

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