Framework traction rod support bush assembling method

Abstract

The invention provides a framework draw bar support bushing assembling method, which is characterized in that a bushing conveying device is used for assembling, the bushing conveying device comprises a threaded rod, a nut, a positioning pressing plate, a hydraulic oil cylinder, a telescopic rod and a bushing, the position of the hydraulic oil cylinder is fixed by utilizing the nut and the positioning pressing plate, and vertical force can be conveniently and quickly applied to the bushing so as to press the bushing in place; during implementation, a tool is attached to fix the position of the oil cylinder, then the lining is placed in the mounting hole, and the telescopic rod is pressed downwards to complete assembly. According to the device and the method, the position of the hydraulic oil cylinder is accurately fixed through the interaction of the positioning pressing plate and the nut, it is ensured that the magnitude and the direction of pressure borne by the bush are kept consistent in the bush pressing process, the bush can be stably pressed into a mounting hole of a support, the situation that the position of the bush deviates or inclines due to manual knocking is effectively prevented, and the service life of the bush is prolonged. And therefore, the matching precision of the bushing and the support mounting hole is improved.

Description

Technical Field

[0001] The invention relates to the technical field of locomotive frame traction, and in particular to a method for assembling a frame traction rod support bushing. Background Art

[0002] The locomotive frame traction rod support occupies a vital position in the locomotive operation system. Its primary and key role is to provide solid support for the crank arm. As the core component connecting the bogie and the car body, the crank arm gives the bogie the ability to rotate at a certain angle relative to the car body, thereby cleverly realizing the steering operation of the locomotive. At the same time, the traction rod support also shoulders the two extremely important tasks of transmitting traction and braking force. It is like a bridge that effectively transmits power between different components. In the complex process of the entire locomotive operation and steering, the traction rod support continues to play an indispensable and key role and is one of the key links to ensure the normal operation of the locomotive.

[0003] The bushing is precisely installed in the mounting hole of the drawbar support, and the crank arm is cleverly installed in the bushing of the drawbar support through the crank arm pin, forming a close and interrelated structural relationship between the three. Although the bushing seems to be just a small component, its status is directly related to the normal operation of the entire system. Once the bushing fails, it will cause a series of serious problems. The most direct one is that the crank arm cannot rotate normally, which in turn causes the locomotive to shake violently during driving. This shaking will seriously affect the controllability of the train and make it difficult for the driver to accurately control the direction and speed of the locomotive. What's more serious is that the accumulation of this series of problems will greatly increase the risk of accidents and pose a huge threat to the safe operation of the locomotive. Therefore, the quality and performance of the bushing are crucial to the safe and stable operation of the locomotive. Summary of the invention

[0004] In view of the technical problem that the failure of the bushing increases the risk of accidents during the driving of the locomotive, a method for assembling the bushing of the frame traction rod support is provided. The present invention designs a bushing conveying device that can position the hydraulic cylinder. The hydraulic cylinder is positioned before assembly, and a vertical force can be applied to the bushing conveniently and quickly to press it into place.

[0005] The technical means adopted by the present invention are as follows:

[0006] A method for assembling a bushing of a frame traction rod support, wherein the bushing conveying device is used for assembly, and the bushing conveying device comprises: a threaded rod, a nut, a positioning plate, a hydraulic cylinder, a telescopic rod, and a bushing;

[0007] The threaded rod is used to connect and support other components;

[0008] The nut cooperates with the threaded rod to adjust and fix the positions of other components;

[0009] There are at least two positioning plates, wherein the upper and middle positioning plates are provided with circular grooves for fixing the position of the hydraulic cylinder, and the lower positioning plate is in contact with the frame traction rod support;

[0010] The hydraulic cylinder is fixed in position by the positioning plate, and has a telescopic rod inside that can move vertically;

[0011] The telescopic rod can move vertically under the action of the hydraulic cylinder and is used for press-fitting the bushing;

[0012] The bushing is interference fit with the mounting hole and is used to be installed in the mounting hole of the frame traction rod support.

[0013] Furthermore, the bushing conveying device presses the positioning plate through the nut on the threaded rod to achieve the positioning of the hydraulic cylinder.

[0014] Furthermore, the telescopic rod is moved downward through the mounting hole on the upper side of the frame traction rod support, and the bushing is pressed into the mounting hole on the lower side.

[0015] Furthermore, the positioning plate in the bushing conveying device is tightly fitted with the frame traction rod support to ensure the stability of the device during the press-fitting process.

[0016] Furthermore, the vertical force provided by the hydraulic cylinder is adjustable to meet the press-fitting requirements of bushings of different specifications.

[0017] Furthermore, the inner wall of the circular groove of the positioning pressure plate is provided with a wear-resistant coating to reduce wear between the positioning pressure plate and the hydraulic cylinder.

[0018] A method for assembling a frame drawbar support bushing comprises the following steps:

[0019] Step 1: Tighten the positioning plate through the nut on the threaded rod, and fix the position of the hydraulic cylinder through the circular grooves in the upper and middle positioning plates, so that the lower positioning plate fits the frame traction rod support;

[0020] Step 2: Place the bushing to be assembled on the support mounting hole on the lower side of the drawbar support;

[0021] Step 3: Control the telescopic rod of the hydraulic cylinder to move downward, pass through the support mounting hole on the upper side of the drawbar support, and press the bushing into the support mounting hole on the lower side;

[0022] Step 4: After the bushing on the lower side of the drawbar support is assembled, use the same method to assemble the bushing on the upper side.

[0023] Due to the adoption of the above technical solution, compared with the prior art, the present invention has the following advantages:

[0024] 1. The present invention provides a method for assembling a bushing for a frame traction rod support, which adopts a bushing conveying device positioned by a hydraulic cylinder to realize mechanical assembly production, changing the situation that traditional manual installation relies on experience and has unstable quality. The device accurately fixes the position of the hydraulic cylinder through the cooperation of the positioning pressure plate and the nut, ensuring that when the telescopic rod is press-fitted with the bushing, the bushing is subjected to the same force in magnitude and direction, and can be stably press-fitted into the support mounting hole, effectively avoiding the position displacement or skewness of the bushing caused by manual hammering, thereby improving the matching accuracy between the bushing and the support mounting hole, ensuring the assembly quality, making the traction rod support bushing assembly process stable and controllable, and realizing standardized production.

[0025] 2. The present invention provides a method for assembling a bushing for a frame traction rod support. Compared with the traditional manual hammering assembly method, the assembly method of the present invention greatly improves production efficiency. Manual hammering is not only slow, but also requires frequent adjustment of strength and angle during the assembly process, which consumes a lot of time. The new method uses the power of the hydraulic cylinder to quickly and stably press the bushing through the telescopic rod, reducing the assembly time. At the same time, the method is simple to operate and easy to master, reducing the dependence on the skill level of the operator, reducing the difference in assembly efficiency between different operators, and improving production efficiency as a whole. The advantages are more obvious when the production tasks are heavy.

[0026] 3. The present invention provides a method for assembling a bushing for a frame traction rod support. Traditional manual hammering assembly methods have many safety hazards. Frequent use of tools such as hammers can easily cause injuries to the operator's hands and other parts, and the labor intensity is extremely high. The bushing assembly method of the present invention frees the operator from heavy physical labor and dangerous operations. The operator only needs to operate the hydraulic cylinder and control the positioning of the bushing conveying device and other simple steps. There is no need to directly perform high-intensity hammering operations, thereby effectively reducing labor intensity and reducing the risk of safety accidents caused by improper operation. It provides a safer working environment for the operator and is conducive to ensuring the safety and sustainability of the production process.

[0027] Based on the above reasons, the present invention can be promoted in the field of locomotive frame traction technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention 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. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 It is a schematic diagram of a bushing conveying device positioned by a hydraulic cylinder in a method for assembling a bushing for a frame drawbar support according to the present invention;

[0030] Figure 2 The present invention is a flowchart of a method for assembling a frame traction rod support bushing.

[0031] In the figure: 1. frame traction rod support; 2. threaded rod; 3. nut; 4. positioning pressure plate; 5. hydraulic cylinder; 6. telescopic rod; 7. bushing; 8. mounting hole. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0035] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0036] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0038] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0039] like Figures 1 to 2As shown, the present invention provides a method for assembling a bushing of a frame traction rod support, which is assembled using a bushing conveying device, wherein the bushing conveying device comprises: a threaded rod 2, a nut 3, a positioning plate 4, a hydraulic cylinder 5, a telescopic rod 6, and a bushing 7;

[0040] The threaded rod 2 is used to connect and support other components;

[0041] The nut 3 cooperates with the threaded rod 2 to adjust and fix the positions of other components;

[0042] There are at least two positioning plates 4, wherein the upper and middle positioning plates 4 are provided with circular grooves for fixing the position of the hydraulic cylinder 5, and the lower positioning plate 4 is in contact with the frame traction rod support 1;

[0043] The hydraulic cylinder 5 is fixed in position by the positioning plate 4 and has a telescopic rod 6 that can move vertically;

[0044] The telescopic rod 6 can move vertically under the action of the hydraulic cylinder 5 and is used for press-fitting the bushing 7;

[0045] The bushing 7 is interference fit with the mounting hole 8 and is used to be installed in the mounting hole 8 of the frame traction rod support 1.

[0046] Furthermore, the bushing 7 conveying device presses the positioning plate 4 through the nut 3 on the threaded rod 2 to achieve the positioning of the hydraulic cylinder 5.

[0047] Furthermore, the telescopic rod 6 moves downward through the mounting hole 8 on the upper side of the frame traction rod support 1, and the bushing 7 is pressed into the mounting hole 8 on the lower side.

[0048] Furthermore, the positioning plate 4 in the bushing 7 conveying device is tightly fitted with the frame traction rod support 1 to ensure the stability of the device during the press-fitting process.

[0049] Furthermore, the vertical force provided by the hydraulic cylinder 5 can be adjusted to meet the press-fitting requirements of bushings 7 of different specifications.

[0050] Furthermore, after the hydraulic cylinder 5 is started, the telescopic rod 6 is controlled to move slowly downward. During the movement of the telescopic rod 6, its relative position with the bushing 7 and the support mounting hole 8 is continuously observed to ensure that the telescopic rod 6 accurately passes through the support mounting hole 8 on the upper side of the frame traction rod support 1 and contacts the bushing 7. When the telescopic rod 6 contacts the bushing 7, the output pressure of the hydraulic cylinder 5 is gradually increased so that the telescopic rod 6 applies a stable vertical force to the bushing 7, and the bushing 7 is slowly pressed into the support mounting hole 8 on the lower side.

[0051] Furthermore, the inner wall of the circular groove of the positioning pressure plate 4 is provided with a wear-resistant coating to reduce the wear between the positioning pressure plate 4 and the hydraulic cylinder 5 .

[0052] The present invention also provides a method for assembling a frame traction rod support bushing, comprising the following steps:

[0053] Step 1: Tighten the positioning plate 4 by the nut 3 on the threaded rod 2, and fix the position of the hydraulic cylinder 5 by the circular grooves in the upper and middle positioning plates 4, so that the lower positioning plate 4 fits the frame traction rod support 1;

[0054] Step 2: Place the bushing 7 to be assembled on the support mounting hole 8 on the lower side of the frame traction rod support 1;

[0055] Step 3: Control the telescopic rod 6 of the hydraulic cylinder 5 to move downward, pass through the support mounting hole 8 on the upper side of the frame traction rod support 1, and press the bushing 7 into the support mounting hole 8 on the lower side;

[0056] Step 4: After the bushing 7 on the lower side of the drawbar support is assembled, use the same method to assemble the bushing 7 on the upper side.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for assembling a frame traction rod support bushing, characterized in that: The bushing conveying device is used for assembly, and the bushing conveying device includes: a threaded rod, a nut, a positioning plate, a hydraulic cylinder, a telescopic rod, and a bushing; The threaded rod is used to connect and support other components; The nut cooperates with the threaded rod to adjust and fix the positions of other components; There are at least two positioning plates, wherein the upper and middle positioning plates are provided with circular grooves for fixing the position of the hydraulic cylinder, and the lower positioning plate is in contact with the frame traction rod support; The hydraulic cylinder is fixed in position by the positioning plate, and has a telescopic rod inside that can move vertically; The telescopic rod can move vertically under the action of the hydraulic cylinder and is used for press-fitting the bushing; The bushing is interference fit with the mounting hole and is used to be installed in the mounting hole of the frame traction rod support.

2. A method for assembling a frame traction rod support bushing according to claim 1, characterized in that: The bushing conveying device presses the positioning plate through the nut on the threaded rod to achieve the positioning of the hydraulic cylinder.

3. A method for assembling a frame traction rod support bushing according to claim 1, characterized in that: The hydraulic cylinder uses the circular groove in the positioning plate to fix its position, ensuring the stability of the hydraulic cylinder during the process of pressing the bushing.

4. A method for assembling a frame traction rod support bushing according to claim 1, characterized in that: The telescopic rod is moved downward through the mounting hole on the upper side of the frame traction rod support, and the bushing is pressed into the mounting hole on the lower side.

5. A method for assembling a frame traction rod support bushing according to claim 1, characterized in that: The positioning pressing plate in the bushing conveying device is tightly fitted with the frame traction rod support to ensure the stability of the device during the pressing process.

6. A method for assembling a frame traction rod support bushing according to claim 1, characterized in that: The vertical force provided by the hydraulic cylinder can be adjusted to meet the press-fitting requirements of bushings of different specifications.

7. A method for assembling a frame traction rod support bushing according to claim 1, characterized in that: The overall material of the bushing conveying device is high-strength alloy steel.

8. A method for assembling a frame drawbar support bushing according to claim 1, characterized in that: The inner wall of the circular groove of the positioning pressure plate is provided with a wear-resistant coating to reduce the wear between the positioning pressure plate and the hydraulic cylinder.

9. A method for assembling a frame traction rod support bushing, characterized in that: The following steps are involved: Step 1: Tighten the positioning plate through the nut on the threaded rod, and fix the position of the hydraulic cylinder through the circular grooves in the upper and middle positioning plates, so that the lower positioning plate fits the frame traction rod support; Step 2: Place the bushing to be assembled on the support mounting hole on the lower side of the drawbar support; Step 3: Control the telescopic rod of the hydraulic cylinder to move downward, pass through the support mounting hole on the upper side of the drawbar support, and press the bushing into the support mounting hole on the lower side; Step 4: After the bushing on the lower side of the drawbar support is assembled, use the same method to assemble the bushing on the upper side.

Images