A large-diameter pin shaft mounting tool

Abstract

This utility model relates to the field of pin installation technology and discloses a large-diameter pin installation fixture, including a fixed seat, a push rod, and a slot for placing the large-diameter pin. The fixed seat is disposed at one end of the slot and has a through hole for the large-diameter pin to pass through. The fixed seat is bolted to the crane base, and the through hole is aligned with the eye hole of the crane base. The other end of the slot is provided with a positioning plate, and the positioning plate has a push hole for the push rod to pass through. This utility model reduces the difficulty of pin installation, improves installation efficiency and safety, and reduces construction costs.

Description

Technical Field

[0001] This utility model relates to the field of pin installation technology, and in particular to a tooling for installing large-diameter pins. Background Technology

[0002] The connection between the crane boom and the crane base is a crucial part of the overall crane structure, and its design needs to ensure stability, load-bearing capacity, and flexibility. A high-strength steel pin is used to connect and fix the base to the boom root, allowing the boom to tilt in the vertical plane. However, large cranes have large-diameter and heavy boom pins. Existing installation methods typically involve suspending the pin with the crane, which has several disadvantages: 1. It requires prolonged use of crane resources; 2. It requires multiple people to work together; 3. Because the gap between the pin and the base eyelet is very small, approximately only 2mm, the pin's levelness during installation is critical; even a slight tilt will prevent the pin from being inserted properly. Utility Model Content

[0003] The purpose of this invention is to provide a large-diameter pin installation fixture, which reduces the difficulty of pin installation, improves installation efficiency and safety, and reduces construction costs.

[0004] To achieve the above objectives, this utility model provides a large-diameter pin installation fixture, including a fixed seat, a push rod, and a slot for placing the large-diameter pin. The fixed seat is disposed at one end of the slot and has a through hole through which the large-diameter pin can pass. The fixed seat is bolted to the crane base, and the through hole is aligned with the eye hole of the crane base. The other end of the slot is provided with a positioning plate, and the positioning plate has a push hole through which the push rod can pass.

[0005] As a preferred embodiment of this utility model, the bottom of the bracket is V-shaped.

[0006] As a preferred embodiment of this utility model, the bottom of the tray is provided with three adjustment holes arranged laterally at both the front and rear parts, and the adjustment holes are provided with adjustment components for adjusting the levelness of the large-diameter pin.

[0007] As a preferred embodiment of this utility model, the adjusting component includes an adjusting nut fixedly connected to the adjusting hole and an adjusting bolt threadedly connected to the adjusting nut.

[0008] As a preferred embodiment of this utility model, the bracket is provided with symmetrical positioning holes on both sides, and the support rod is detachably inserted into the positioning holes on both sides of the bracket. The bracket is provided with a jack for pushing a large-diameter pin, and the jack abuts against the support rod.

[0009] As a preferred embodiment of this utility model, the positioning hole is square, and the support rod is fitted with the shape of the positioning hole.

[0010] As a preferred embodiment of this utility model, the positioning holes are provided in multiple locations and are spaced apart along the length direction of the bracket.

[0011] As a preferred embodiment of this utility model, the positioning plate is a channel steel.

[0012] Compared with the prior art, the advantages of this utility model embodiment of a large-diameter pin mounting fixture are as follows:

[0013] This utility model uses a fixing base to fix the installation fixture to the base of the crane. The large-diameter pin of the crane is placed on the bracket, so that the large-diameter pin can be aligned with the eye hole of the crane base. The large-diameter pin can be pushed into the eye hole of the crane base by a push rod. The installation operation is simple, safe and efficient, and there is no need to use a crane to suspend the pin for installation, which reduces the difficulty of pin installation, improves installation efficiency and safety, and reduces construction costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] Figure 1 A front view of a large-diameter pin mounting fixture provided by this utility model;

[0016] Figure 2 A side view of a large-diameter pin mounting fixture provided by this utility model;

[0017] Figure 3 A schematic diagram of the large-diameter pin mounting fixture for use with a push rod provided by this utility model;

[0018] Figure 4 A schematic diagram of the large-diameter pin installation fixture using a jack provided by this utility model;

[0019] In the diagram, 1 is the fixed base; 2 is the push rod; 3 is the bracket; 31 is the positioning hole; 32 is the adjusting bolt; 4 is the positioning plate; 5 is the support rod; 6 is the jack; 7 is the large diameter pin; 8 is the crane base; and 9 is the crane boom. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figures 1 to 3 As shown, a preferred embodiment of the present invention provides a large-diameter pin installation fixture, including a fixed base 1, a push rod 2, and a slot 3 for placing a large-diameter pin 7. The fixed base 1 is disposed at one end of the slot 3, and the fixed base 1 has a through hole through which the large-diameter pin 7 can pass. The fixed base 1 is bolted to the crane base 8, and the through hole is directly opposite the eye hole of the crane base 8. The other end of the slot 3 is provided with a positioning plate 4, and the positioning plate 4 has a push hole through which the push rod 2 can pass.

[0023] This utility model uses a fixing base 1 to fix the installation fixture on the base of the crane. The large-diameter pin 7 of the crane is placed on the bracket 3, so that the large-diameter pin 7 can be aligned with the eye hole of the crane base 8. The large-diameter pin 7 can be pushed into the eye hole of the crane base 8 by the push rod 2. The installation operation is simple, safe and efficient, and there is no need to use a crane to suspend the pin for installation, which reduces the difficulty of pin installation, improves installation efficiency and safety, and reduces construction costs.

[0024] Specifically, the bottom of the groove 3 is V-shaped to prevent the large-diameter pin 7 from rolling and to ensure the stability of the large-diameter pin 7.

[0025] For example, such as Figure 1 and Figure 2 As shown, the bottom of the bracket 3 has three adjustment holes arranged laterally at both the front and rear. Specifically, the lowest part of the front of the V-shaped bracket 3 has one adjustment hole, and the other two adjustment holes are located on the left and right sides of the front of the V-shaped bracket 3, respectively. The lowest part of the rear of the V-shaped bracket 3 has one adjustment hole, and the other two adjustment holes are located on the left and right sides of the front of the V-shaped bracket 3, respectively. The adjustment holes are equipped with adjustment components for adjusting the level of the large-diameter pin 7, so as to achieve fine adjustment of the level of the large-diameter pin 7 and ensure that the large-diameter pin 7 can be accurately installed.

[0026] Furthermore, the adjusting component includes an adjusting nut fixedly connected to the adjusting hole and adjusting bolts 32 threadedly connected to the adjusting nut. The height of the four adjusting bolts 32 extending into the slot 3 is adjusted respectively, thereby adjusting the levelness of the large-diameter pin 7.

[0027] For example, such as Figure 4As shown, the bracket 3 has symmetrical positioning holes 31 on both sides. The support rod 5 can be detachably inserted into the positioning holes 31 on both sides of the bracket 3. The bracket 3 is provided with a jack 6 for pushing the large diameter pin 7. The jack 6 is abutted against the support rod 5. According to actual needs, the jack 6 or the push rod 2 is used to push the large diameter pin 7 into the crane base 8 and the crane boom 9.

[0028] For example, the positioning hole 31 is square, and the support rod 5 is shaped to match the positioning hole 31 to prevent the support rod 5 from rotating and to ensure that the support rod 5 is stably positioned on the positioning hole 31 of the bracket 3.

[0029] For example, the positioning holes 31 are provided in multiple and are spaced apart along the length of the support groove 3, so that the position of the support rod 5 on the support groove 3 can be adjusted according to the implementation needs, so that the jack 6 can better push the large diameter pin 7 into the crane base 8 and the crane boom 9.

[0030] To improve the structural strength of the positioning plate 4, the positioning plate 4 is made of channel steel, and the push hole on the positioning plate 4 is aligned with the center line of the large-diameter pin 7.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A large diameter pin shaft mounting tool characterized by, The device includes a fixed base, a push rod, and a slot for placing a large-diameter pin. The fixed base is located at one end of the slot and has a through hole through which the large-diameter pin can pass. The fixed base is bolted to the crane base, and the through hole is aligned with the eye hole of the crane base. The other end of the slot is provided with a positioning plate, and the positioning plate has a push hole through which the push rod can pass.

2. The large diameter pin bushing installation tool of claim 1, wherein, The bottom of the bracket is V-shaped.

3. The large diameter pin bushing installation tool of claim 2, wherein, The bottom of the slot has three horizontally arranged adjustment holes at both the front and rear. The adjustment holes are equipped with adjustment components for adjusting the levelness of the large-diameter pin.

4. The large diameter pin bushing installation tool of claim 3, wherein, The adjusting component includes an adjusting nut fixedly connected to the adjusting hole and an adjusting bolt threadedly connected to the adjusting nut.

5. The large diameter pin bushing installation tool of claim 1 wherein, The bracket has symmetrical positioning holes on both sides, and the support rod can be detachably inserted into the positioning holes on both sides of the bracket. The bracket is provided with a jack for pushing a large-diameter pin, and the jack abuts against the support rod.

6. The large diameter pin bushing installation tool of claim 5, wherein, The positioning hole is square, and the support rod matches the shape of the positioning hole.

7. The large diameter pin bushing installation tool of claim 5 wherein, The positioning holes are provided in multiple locations and are spaced apart along the length of the bracket.

8. The large diameter pin bushing installation tool of claim 1 wherein, The positioning plate is made of channel steel.

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