Tool for disassembling and assembling steering gear

Abstract

The utility model provides a tool for disassembling and assembling a steering gear. The tool comprises a hydraulic supporting rod device, a bracket and a support. The bracket is connected with a supporting head of the hydraulic supporting rod device through a support, the support is connected with fixing frames on the two sides of a base of the hydraulic supporting rod device through a transmission shaft, and the hydraulic supporting rod device is used for driving the support to rotate around the transmission shaft. One end of the bracket is provided with an opening, the other end of the bracket is provided with a concave first supporting part, and the bracket is used for supporting a steering gear; a hydraulic lifting arm of the hydraulic supporting rod device is controlled to stretch or retract to change the position of a bracket, when the hydraulic lifting arm retracts, the bracket rotates clockwise around a transmission shaft, the bracket synchronously moves along with the bracket, the steering gear is supported when a maintenance worker enters a vehicle bottom for maintenance work, the steering gear is prevented from falling off and being damaged, and the maintenance efficiency is improved. And the manufacturing cost is low, operation is convenient, the multiple steel trundles are arranged at the bottom of the hydraulic supporting rod device, and the portability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of special tools for disassembly and assembly, in particular to a tool for disassembly and assembly of a steering gear. Background Art

[0002] The steering gear is also called steering machine or steering gear. It is the most important part in the steering system of a car. Its function is to increase the force transmitted from the steering wheel to the steering transmission machine and change the direction of force transmission, so as to turn the steering wheel of the vehicle.

[0003] Its main structure is composed of several parts such as steering column, steering gear, steering mechanism, steering rod, etc. These parts cooperate with each other to complete the steering function of the vehicle steering system. The position of the steering gear in the vehicle is very critical. There are many important parts of the vehicle around it. Once the steering gear is disengaged and broken, it will swing out of control and break the parts. Therefore, it is particularly important to disassemble and maintain the steering gear. The current process of disassembling and assembling the steering gear of a dump truck requires the cooperation of two auto repair workers, one to lift the steering gear and the other to disassemble and assemble it. Because the steering gear of a dump truck weighs fifty or sixty kilograms, it is very difficult to lift it, and there are often accidents where the steering gear falls. When it falls, it is easy to cause the steering gear to be scrapped, resulting in economic losses. The hazards of disassembling and assembling the steering gear of a dump truck are mainly as follows: (1) When replacing the steering gear of a dump truck, two mechanics are required, one to hold the steering gear and the other to knock and disassemble it, which will consume a certain amount of manpower; (2) When replacing the steering gear of a dump truck, two people enter the wheel to work, and the space is small, which affects the mechanic's range of activities and is not conducive to carrying out work; (3) When replacing the steering gear of a dump truck, one mechanic is required to hold the steering gear, which poses certain safety hazards. Once the steering gear falls, the mechanic will suffer mechanical injuries; (4) When replacing the steering gear of a dump truck, one mechanic is required to hold the steering gear, which can easily cause the steering gear to fall and hit the ground, causing the steering gear to be worn or scrapped.

[0004] The prior art proposes a special tool for disassembling and assembling the drive shaft of a dump truck, which can effectively prevent the drive shaft from falling by installing a bracket on a horizontal jack to hold the drive shaft. When the bracket head rises, it drives the bracket to rise and hold the drive shaft. However, the special tool is only suitable for disassembling and assembling the drive shaft and other shaft tubes installed horizontally, but it cannot play its role for the drive shaft or steering gear arranged longitudinally. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a tool for disassembling and assembling a steering gear, comprising a hydraulic strut device, a bracket and a support. The bracket is connected to the support head of the hydraulic strut device through the bracket, and the hydraulic arm of the hydraulic strut device is controlled to extend or shorten to change the position of the bracket. When the hydraulic arm is shortened, the bracket rotates clockwise around the transmission shaft, and the bracket moves synchronously with the bracket. When a maintenance worker enters the bottom of the vehicle to perform maintenance work, the steering gear is supported to prevent the steering gear from falling and causing damage, thereby improving maintenance efficiency. The utility model also has low manufacturing cost and is easy to operate.

[0006] The utility model achieves the above technical purpose through the following technical means.

[0007] A tool for disassembling and assembling a steering gear, comprising a hydraulic strut device, a bracket and a support; the bracket is connected to the support head of the hydraulic strut device through the support, and the support is connected to the fixed frames on both sides of the base of the hydraulic strut device through a transmission shaft, and the hydraulic strut device is used to drive the support to rotate around the transmission shaft; one end of the bracket is provided with an opening, and the other end is provided with a recessed first supporting portion, and the bracket is used to support a longitudinally arranged steering gear.

[0008] Furthermore, the bracket includes a first supporting portion, a second supporting portion and a enclosure, the first supporting portion is fixedly connected to the second supporting portion, and the first supporting portion is recessed along the axial direction of the second supporting portion; the enclosure is arranged on both sides of the second supporting portion opposite to the first supporting portion, and the second supporting portion is fixedly connected to the enclosure.

[0009] Furthermore, the first supporting part, the second supporting part and the enclosure are all made of solid iron pipes.

[0010] Furthermore, the first supporting portion is semicircularly concave, the second supporting portion is circular, and the semicircular diameter of the first supporting portion is equal to the circular diameter of the second supporting portion.

[0011] Furthermore, the semicircular diameter of the first supporting part and the circular diameter of the second supporting part are not less than the diameters at both ends of the supported part of the steering gear, and the semicircular diameter of the first supporting part and the circular diameter of the second supporting part shall not exceed 10% of the diameters at both ends of the supported part of the steering gear.

[0012] Furthermore, the enclosure of the bracket is fixedly connected to the support, and the bracket can move synchronously with the support.

[0013] Furthermore, a connecting portion is provided between the enclosure and the bracket, and the bracket is connected to the bracket via the connecting portion.

[0014] Furthermore, the connecting portion is made of an iron sheet, and the connecting portion is used to increase the contact area between the bracket and the support, thereby improving the strength of the device.

[0015] Furthermore, steel casters are provided at the bottom of the hydraulic support rod device.

[0016] The beneficial effects of the utility model are:

[0017] 1. The tool for disassembling and assembling the steering gear described in the utility model connects the bracket and the hydraulic support rod device through the bracket. The bracket moves synchronously with the bracket when the hydraulic support rod device is extended and retracted, and can stably support the steering gear, preventing the steering gear from falling due to physical exhaustion or hand slippage of maintenance personnel during work, thereby effectively ensuring the safety of maintenance personnel.

[0018] 2. The tool for disassembling and assembling the steering gear described in the utility model increases the contact area between the bracket and the support by setting a connecting part between the bracket and the support, and the connecting part is an iron sheet, thereby increasing the strength of the overall device and improving the safety performance.

[0019] 3. The tool for disassembling and assembling the steering gear of the utility model is provided with a plurality of steel casters at the bottom of the hydraulic support rod device, thereby improving the portability of the device.

[0020] 4. The tool for disassembling and assembling the steering gear of the utility model becomes a special tool for disassembling and assembling the steering gear of a dump truck by installing a self-made bracket connected to the hydraulic support rod device, which is easy to install and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. The drawings described below are some embodiments of the utility model. For ordinary technicians in this field, it is obvious that other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a front view of the tool for disassembling and assembling a steering gear according to the utility model;

[0023] Figure 2 A bottom view of the tool for disassembling and assembling a steering gear according to the utility model;

[0024] In the figure:

[0025] 1-Hydraulic support rod device; 1-1-Hydraulic lifting arm; 1-2-Supporting head; 2-Bracket; 2-1-First lifting part; 2-2-Second lifting part; 2-3-Enclosure; 3-Bracket; 4-Drive shaft; 5-Steel caster; 6-Connecting part; 7-Fixed frame. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figure 1 and Figure 2As shown, the tool for disassembling and assembling a steering gear of the utility model comprises a hydraulic support rod device 1, a bracket 2 and a support 3, one end of the support 3 is connected to the side of the bracket 2, which can be welded or other fixed connection methods, and the other end is connected to the hydraulic arm 1-1 of the hydraulic support rod device 1, the bracket 2 is connected to the support head 1-2 of the hydraulic support rod device 1 through the support 3, and the middle section of the support 3 is connected to the fixed frames 7 on both sides through the transmission shaft 4; the hydraulic arm 1-1 of the hydraulic support rod device 1 is controlled to retract by the rocker, and when the hydraulic arm 1-1 is retracted, The hydraulic arm 1-1 drives the supporting head 1-2 to move in the contraction direction of the hydraulic arm 1-1, thereby driving the bracket 3 to rotate clockwise around the transmission shaft 4. During the rotation of the bracket 3, the bracket 2 is driven to rise upward, and when the maintenance worker enters the bottom of the vehicle to perform maintenance work, the steering gear is supported to prevent the steering gear from falling and causing injury; when the maintenance is completed, the hydraulic arm 1-1 is extended by controlling the rocker, and the hydraulic arm 1-1 drives the supporting head 1-2 to move in the extension direction of the hydraulic arm 1-1, and the bracket 3 rotates counterclockwise around the transmission shaft 4. During the rotation of the bracket 3, the bracket 2 is driven to descend and separate from the steering gear.

[0030] The bracket 2 described in the utility model is 25cm long and 25cm wide. Figure 1As shown, the bracket 2 is composed of three parts, a first supporting part 2-1, a second supporting part 2-2 and two side enclosures 2-3. The top of the bracket 2 is an unobstructed opening, and the bottom is a concave first supporting part 2-1. The first supporting part 2-1 is semicircular and concave. The first supporting part 2-1 and the second supporting part 2-2 are welded and arranged on the lower side of the second supporting part 2-2 along the axial direction of the second supporting part 2-2 to support the bottom end of the steering gear to prevent the steering gear from falling; the second supporting part 2-2 is circular, and the first supporting part The semicircular diameter of 2-1 is consistent with the circular diameter of the second supporting part 2-2. The semicircular diameter of the first supporting part 2-1 and the circular diameter of the second supporting part 2-2 are not less than the diameters at both ends of the supported part of the steering gear, and are not greater than 10% of the diameters at both ends of the supported part of the steering gear, ensuring that the bracket 2 can completely support the steering gear without causing squeezing damage to the steering gear, and the steering gear located on the bracket 2 will not shake significantly due to the excessive distance around the second supporting part 2-2, thereby causing damage to the steering gear. The second supporting part 2-2 is welded to the first supporting part 2-1, and the first supporting part 2-1 and the second supporting part 2-2 form a hemispherical support frame. The first supporting part 2-1 is located on the center line of the hemispherical support frame, and the distance from the bottom end of the first supporting part 2-1 to the plane where the second supporting part 2-2 is located is at least one-third of the length of the steering gear, ensuring that the steering gear can maintain a stable state in the hemispherical support frame, avoiding the steering gear part located above the second supporting part 2-2 from being too heavy and causing rollover, which helps to protect the steering gear and the bracket 2; enclosures 2-3 are provided on both sides of the second supporting part 2-2, and the enclosures 2-3 are provided on the upper side of the second supporting part 2-2 and welded to the second supporting part 2-2, and are used to support the main part of the steering gear. The upper part of the enclosure 2-3 is arc-shaped, and the curvature is consistent with the curvature of the steering gear shaft to ensure that the steering gear will not be damaged.

[0031] A connecting portion 6 is also provided between the bracket 3 and the support 2, and the two sides of the connecting portion 6 are welded to the bracket 3 and the support 2 respectively. The connecting portion 6 increases the contact area between the bracket 3 and the support 2, which helps to improve the strength of the lifting device and improves the safety performance to a certain extent. A plurality of steel casters 5 are also provided under the base of the hydraulic support rod device 1 to improve the portability.

[0032] In addition, the first supporting part 2-1, the second supporting part 2-2 and the enclosure 2-3 in the bracket 2 described in the present invention are all composed of solid iron pipes, and the connecting part 6 is composed of iron sheets, which has the characteristics of wear resistance and strong supporting force.

[0033] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0034] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the protection scope of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for disassembling and assembling a steering gear, characterized in that: The invention comprises a hydraulic strut device (1), a bracket (2) and a support (3); the bracket (2) is connected to a support head (1-2) of the hydraulic strut device (1) via the support (3); the support (3) is connected to fixed frames (7) on both sides of a base of the hydraulic strut device (1) via a transmission shaft (4); the hydraulic strut device (1) is used to drive the support (3) to rotate around the transmission shaft (4); one end of the bracket (2) is provided with an opening, and the other end is provided with a recessed first support portion (2-1); the bracket (2) is used to support a longitudinally arranged steering gear.

2. The tool for disassembling and assembling a steering gear according to claim 1, characterized in that: The bracket (2) comprises a first supporting portion (2-1), a second supporting portion (2-2) and a surrounding block (2-3); the first supporting portion (2-1) is fixedly connected to the second supporting portion (2-2); the first supporting portion (2-1) is recessed along the axial direction of the second supporting portion (2-2); the surrounding block (2-3) is arranged on both sides of the second supporting portion (2-2) in the opposite direction to the first supporting portion (2-1); the second supporting portion (2-2) is fixedly connected to the surrounding block (2-3).

3. The tool for disassembling and assembling a steering gear according to claim 2, characterized in that: The first supporting part (2-1), the second supporting part (2-2) and the enclosure (2-3) are all composed of solid iron pipes.

4. The tool for disassembling and assembling a steering gear according to claim 2, characterized in that: The first supporting portion (2-1) is semicircularly concave, the second supporting portion (2-2) is circular, and the semicircular diameter of the first supporting portion (2-1) is equal to the circular diameter of the second supporting portion (2-2).

5. The tool for disassembling and assembling a steering gear according to claim 4, characterized in that: The semicircular diameter of the first supporting part (2-1) and the circular diameter of the second supporting part (2-2) are not less than the diameters at both ends of the supported part of the steering gear, and the semicircular diameter of the first supporting part (2-1) and the circular diameter of the second supporting part (2-2) shall not exceed 10% of the diameters at both ends of the supported part of the steering gear.

6. The tool for disassembling and assembling a steering gear according to claim 2, characterized in that: The enclosure (2-3) of the bracket (2) is fixedly connected to the support (3), and the bracket (2) can move synchronously with the support (3).

7. The tool for disassembling and assembling a steering gear according to claim 6, characterized in that: A connecting portion (6) is provided between the enclosure (2-3) and the bracket (3), and the bracket (2) is connected to the bracket (3) via the connecting portion (6).

8. The tool for disassembling and assembling a steering gear according to claim 7, characterized in that: The connecting part (6) is made of an iron sheet and is used to improve the strength of the device.

9. The tool for disassembling and assembling a steering gear according to claim 1, characterized in that: The bottom of the hydraulic support rod device (1) is provided with a steel castor (5).

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