T-shaped shaft dismounting tool and method of use

Abstract

The application relates to a T-shaped shaft dismounting tool and a use method, which comprise a fixing support, a spare part clamping device and a sliding bracket, the fixing support is fixedly installed on a diesel engine rack and is used for supporting the intermediate gear shaft, the sliding bracket and the spare part clamping device when the intermediate gear shaft is dismounted; the two sides of the sliding bracket are connected with the fixing support through rollers and are used for supporting the spare part clamping device and the intermediate gear shaft and mounting the intermediate gear shaft into a mounting hole; the intermediate gear shaft is connected with the spare part clamping device through a supporting arm on the spare part clamping device and is used for supporting and overturning the intermediate gear shaft. The T-shaped shaft dismounting tool and the use method can safely and conveniently dismount the intermediate gear shaft and greatly reduce the risk of shearing of an O-shaped sealing ring.

Description

Technical Field

[0001] This invention relates to a diesel engine disassembly and assembly tool, and more particularly to a T-shaft disassembly and assembly tool and its usage method. Background Technology

[0002] Diesel engines require maintenance during use. Unlike the convenient conditions of factory repairs, on-site maintenance of diesel engines often involves the disassembly and assembly of heavy T-shaped shaft components. These components have only one flange and can only be installed from one end. Due to sealing and structural manufacturing requirements, the other end is not visible and cannot be accessed. The intermediate gear shaft and embedded pump of the large medium-speed diesel engine developed by our company are horizontally embedded. There are no practical and dedicated tools for disassembly and maintenance. The tools currently used cannot meet the disassembly and installation requirements. The sealing rings are easily damaged during disassembly and assembly, which is very inconvenient and leads to repeated disassembly and assembly, resulting in a large workload. Summary of the Invention

[0003] The purpose of this invention is to provide a T-shaft disassembly and assembly tool and a method of use. Taking the intermediate gear as an example, it can safely and conveniently disassemble and assemble the intermediate gear shaft, and greatly reduce the risk of the O-ring being sheared.

[0004] To achieve the above objectives, the technical solution of the present invention is: a T-shaft disassembly and assembly tool, comprising a fixed bracket, a component clamping device, and a sliding bracket. The fixed bracket is fixedly installed on the diesel engine frame and is used to support the intermediate gear shaft, the sliding bracket, and the component clamping device when disassembling and assembling the intermediate gear shaft. The sliding bracket is connected to the fixed bracket on both sides via rollers and is used to support the component clamping device and the intermediate gear shaft, and to insert the intermediate gear shaft into the mounting hole. The component clamping device is connected to the intermediate gear shaft via a support arm and is used to support and rotate the intermediate gear shaft.

[0005] Furthermore, the fixed bracket is installed onto the frame using bracket fixing bolts.

[0006] Furthermore, the fixed bracket is provided with a guide rail on its inner side, and the guide rail is connected to the roller of the sliding bracket.

[0007] Furthermore, a baffle is fixedly connected to the top of the fixed bracket by bolts.

[0008] Furthermore, the sliding bracket includes a sliding body, a pressure rod, a rear protective pad, a front protective pad, and rollers. Two rollers are provided on each side of the sliding body, and a pressure rod, a rear protective pad, and a front protective bushing are provided at the lower ends of both sides respectively.

[0009] Furthermore, the pressure rod, rear protective pad, and front protective bushing are located at both ends on one side of the sliding body.

[0010] Furthermore, the pressure rod is detachably connected to the sliding body via a connecting pin and a nut.

[0011] Furthermore, the roller is fixedly connected to the sliding body by roller pins, washers, and nuts.

[0012] Furthermore, the component clamping device includes a base plate and a support arm. One end of the support arm is connected to the base plate by bolts, and a pair of protruding pins are provided on the outer side.

[0013] The method of using the T-shaped shaft disassembly and assembly tool of the present invention is used for disassembling and assembling the intermediate gear shaft from the diesel engine frame. During installation, firstly, the fixed bracket is bolted to the frame. The rollers on both sides of the sliding bracket are guided into the guide rails on the fixed bracket. The baffle and bolts of the fixed bracket are tightened to prevent the rollers from slipping out. Then, the intermediate gear shaft to be installed is lifted and placed on the front protective bushing of the sliding bracket near the frame using a pair of protruding pins on the outside of the component clamping device. The pair of connecting pins and nuts near the pressure rods on the sliding bracket are loosened and removed. The pair of pressure rods are rotated outwards by 10° each. The lifting device is loosened but not removed. The support arm of the component clamping device is moved, causing the part and the component clamping device to rotate around the axis of the front protective bushing until the intermediate gear shaft... With the end center slightly higher than the horizontal plane where the center of the mounting hole is located, rotate a pair of pressure rods horizontally inward to their original position and press them onto the other pair of protruding pins of the support arm. Install the bolts and nuts of the sliding bracket back into the sliding bracket and tighten them. Adjust the axis position of the intermediate gear shaft so that its center line is aligned with the center line of the mounting hole. Then, push the sliding bracket to slowly insert the intermediate gear shaft into the mounting hole. Tighten a few bolts to connect the flange of the intermediate gear shaft to the frame. Finally, remove all installation tools and lifting tools, tighten the remaining bolts, and complete the installation of the intermediate gear shaft. When disassembling, the disassembly process of the intermediate gear shaft is the reverse of the installation. However, before installing the T-shaped shaft disassembly tool, use two bolts to push the intermediate gear shaft out a certain distance to make room for the tool installation.

[0014] The beneficial effects of this invention are:

[0015] The present invention provides a T-shaped shaft disassembly and assembly tool and method, which can safely and conveniently disassemble and assemble intermediate gear shafts, and greatly reduce the risk of O-ring seals being sheared. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the T-shaft disassembly and assembly tool assembly of the present invention;

[0017] Figure 2 This is a schematic diagram of the fixed bracket;

[0018] Figure 3 This is a schematic diagram of a sliding bracket;

[0019] Figure 4 This is a schematic diagram of a component clamping device;

[0020] Figures 5 to 12 This is a schematic diagram of the process of installing the intermediate gear shaft into the diesel engine frame using the T-shaft disassembly and assembly tool of the present invention.

[0021] Figure 13 This is a diagram showing how two bolts push the intermediate gear shaft out a certain distance when it is being disassembled. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, a T-shaft disassembly and assembly tool of the present invention includes a fixed bracket, a component clamping device, and a sliding bracket. The fixed bracket is fixedly mounted on the diesel engine frame and is used to support the intermediate gear shaft, the sliding bracket, and the component clamping device during disassembly and assembly. The sliding bracket is connected to the fixed bracket on both sides via rollers and is used to support the component clamping device and the intermediate gear shaft, allowing the intermediate gear shaft to be inserted into the mounting hole. The component clamping device is connected to the intermediate gear shaft via a support arm 16, which is used to support and rotate the intermediate gear shaft.

[0024] like Figure 2 As shown, the fixed bracket includes a bracket fixing bolt 01, a main body 02, a baffle 03, and bolts 04. One end of the main body 02 is mounted to the frame via the bracket fixing bolt 01, and the top of the main body 02 is fixedly connected to the baffle 03 via bolts 04. A guide rail is provided on the inner side of the main body 02.

[0025] like Figure 3 As shown, the sliding bracket includes a sliding body 05, a connecting pin 06, a pressure rod 07, a nut 08, a rear protective pad 09, a front protective pad 10, a roller pin 11, a roller 12, a washer 13, and a nut 14. Two rollers 12 are respectively provided on both sides of the sliding body 05. A pressure rod 07, a rear protective pad 09, and a front protective pad 10 are respectively located at the lower ends of both sides of the sliding body 05, with the pressure rod 07, rear protective pad 09, and front protective pad 10 located at both ends of one side of the sliding body 05. The pressure rod 07 is detachably connected to the sliding body 05 via the connecting pin 06 and the nut 08. The roller 12 is fixedly connected to the sliding body 05 via the roller pin 11, the washer 13, and the nut 14. The rollers 12 on both sides of the sliding bracket are guided into guide rails on a fixed bracket.

[0026] like Figure 4As shown, the component clamping device includes a base plate 15, a support arm 16, and bolts 17. One end of the support arm 16 is connected to the base plate 15 via bolts 17, and a pair of protruding pins are provided on its outer side. The component clamping device uses the protruding pins to place the intermediate gear shaft to be installed on the front protective bushing 10 at the front end of the sliding bracket (near the side of the frame) and the rear protective pad 09 on the pressure rod 07.

[0027] During installation, after the bolts 01 and the main body 02 of the fixed bracket are installed onto the frame, the rollers on both sides of the sliding bracket are guided into the guide rails on the fixed bracket. The baffle 03 and bolts 04 of the fixed bracket are then tightened to prevent the rollers from slipping out. The intermediate gear shaft to be installed is lifted up and placed on the front protective bushing 10 at the front end of the sliding bracket (near the frame) using a pair of protrusions on the outside of the component clamping device. Loosen and remove the pair of connecting pins 06 and nuts 08 near the pressure bar 07 on the sliding bracket. Rotate the pair of pressure bars 07 outwards by approximately 10° each. Loosen the lifting device but do not remove it. Move the support arm 16 of the component clamping device so that the component and the component clamping device rotate around the axis of the front protective bushing 10 until the center of the end of the intermediate gear shaft is slightly higher than the horizontal plane where the center of the mounting hole is located. Rotate the pair of pressure bars 07 horizontally inwards to their original position and press them onto the other pair of protrusions on the support arm 16. Install the bolts 06 and nuts 08 of the sliding bracket back onto the sliding bracket and tighten them. Adjust the axis position of the intermediate gear shaft so that its center line is aligned with the center line of the mounting hole. Then push the sliding bracket to slowly insert the intermediate gear shaft into the mounting hole. Tighten a few bolts to connect the flange of the intermediate gear shaft to the frame. Remove all installation tools and lifting tools, tighten the remaining bolts, and complete the installation of the intermediate gear shaft. The disassembly process of the intermediate gear shaft is the reverse of this, but slightly different. Before installing the disassembly tools, the intermediate gear shaft should be pushed out a certain distance with two bolts to make room for the tools.

[0028] like Figures 5 to 12 As shown, the method of using the T-shaft disassembly and assembly tool of the present invention, the steps for installing the intermediate gear shaft into the diesel engine frame are as follows:

[0029] Step 1: First, install the mounting bracket onto the diesel engine frame and tighten the bolts. See... Figure 5 ;

[0030] Step 2: Guide the rollers on both sides of the sliding bracket into the guide rails on the fixed bracket. Tighten the baffle 03 and bolt 04 of the fixed bracket to prevent the rollers from slipping out. See Figure 6 ;

[0031] Step 3: Install the intermediate gear shaft onto the clamping device, lift it up, and use a pair of protruding pins on the outside of the clamping device to place the intermediate gear shaft to be installed on the protective bushing 10 at the front end of the sliding bracket (near the frame side), see...Figure 7 ;

[0032] Step 4: Loosen and remove the pair of connecting pins 06 and nuts 08 near the pressure rod 07 on the sliding bracket. Rotate the pair of pressure rods 07 outwards by approximately 10° each. Figure 8 ;

[0033] Step 5: Loosen the lifting device but do not remove it. Move the support arm 16 of the clamping device so that the part and the clamping device rotate around the axis of the protective bushing 10 until the end center of the intermediate gear shaft is slightly higher than the horizontal plane where the center of the mounting hole is located. Rotate the pair of pressure rods 07 horizontally inward to their original position and press them onto the other pair of protrusions of the support arm 16. Install the bolts 06 and nuts 08 of the sliding bracket back into the sliding bracket and tighten them. See Figure 9 10;

[0034] Step Six: Adjust the axis position of the intermediate gear shaft so that its center line is aligned with the center line of the mounting hole. Then push the sliding bracket to slowly insert the intermediate gear shaft into the mounting hole. When the base plate 15 of the clamping device is about to approach the machine frame plane, tighten a few bolts, but do not tighten them completely. Connect the flange of the intermediate gear shaft to the machine frame. See [link to relevant documentation]. Figure 11 ;

[0035] Step 7: Remove all installation and lifting tools, screw in the remaining bolts and tighten all bolts to complete the installation of the intermediate gear shaft. See below. Figure 12 .

[0036] The disassembly process for the intermediate gear shaft is the reverse, but slightly different. Before installing the disassembly tools, the intermediate gear shaft must be pushed out a certain distance using two bolts. See [link to disassembly process]. Figure 13 So that there is space to install tools.

[0037] The tool usage process shown above is only a partial implementation example. In actual production and application, a precision adjustment scheme for the central axis can be added. Depending on the specific structure of different diesel engine T-shafts, the dimensions and installation position of the current scheme can be changed, and corresponding structural changes can be made.

Claims

1. A method for using a T-shaped shaft disassembly and assembly tool for disassembling and assembling an intermediate gear shaft from a diesel engine frame. The tool includes a fixed bracket, a component clamping device, and a sliding bracket. The fixed bracket is fixedly mounted on the diesel engine frame and supports the intermediate gear shaft, the sliding bracket, and the component clamping device during disassembly and assembly. The sliding bracket is connected to the fixed bracket on both sides via rollers and supports the component clamping device and the intermediate gear shaft, allowing the intermediate gear shaft to be inserted into the mounting hole. The component clamping device is connected to the intermediate gear shaft via a support arm. The sliding bracket supports and rotates the intermediate gear shaft; the sliding bracket includes a sliding body, a pressure rod, a rear protective pad, a front protective pad, and rollers. Two rollers are provided on each side of the sliding body, and a pressure rod, a rear protective pad, and a front protective pad are provided at the lower ends of both sides respectively. The pressure rod and the front protective pad are located at both ends of one side of the sliding body, and the rear protective pad is provided on the pressure rod. Two sets of component clamping devices are provided, each set including a base plate and a support arm. One end of the support arm is connected to the base plate by bolts, and a pair of protruding pins are provided on the outer side. The characteristic feature is that: During installation, first, install the fixed bracket onto the diesel engine frame using bolts. Guide the rollers on both sides of the sliding bracket into the guide rails on the fixed bracket. Tighten the baffle and bolts of the fixed bracket to prevent the rollers from slipping out. Next, lift the intermediate gear shaft to be installed and place it on the front protective pad of the sliding bracket near the diesel engine frame using a pair of protruding pins on the outside of the component clamping device. Loosen and remove the pair of bolts and nuts near the pressure rods on the sliding bracket. Rotate the pair of pressure rods outwards by 10° each. Loosen the lifting device but do not remove it. Move the support arm of the component clamping device to rotate the intermediate gear shaft and the component clamping device around the axis of the front protective pad until the center of the end of the intermediate gear shaft is slightly higher than the center of the mounting hole. At the horizontal position, rotate a pair of pressure rods horizontally inward to their original position and press them onto the other pair of protrusions on the support arm. Install the bolts and nuts of the sliding bracket back into the sliding bracket and tighten them. Adjust the axis position of the intermediate gear shaft so that its center line is aligned with the center line of the mounting hole. Then, push the sliding bracket to slowly insert the intermediate gear shaft into the mounting hole. Tighten a few bolts to connect the flange of the intermediate gear shaft to the diesel engine frame. Finally, remove all disassembly and assembly tools and lifting equipment, tighten the remaining bolts, and complete the installation of the intermediate gear shaft. During disassembly and assembly, the disassembly process of the intermediate gear shaft is the reverse of the installation. However, before installing the disassembly and assembly tools, use two bolts to push the intermediate gear shaft out a certain distance to make room for the installation of the disassembly and assembly tools.

2. The method of using the T-shaped shaft disassembly and assembly tool according to claim 1, characterized in that: The fixed bracket is installed onto the diesel engine frame using bracket fixing bolts.

3. The method of using the T-shaped shaft disassembly and assembly tool according to claim 1, characterized in that: The fixed bracket is provided with a guide rail on its inner side, and the guide rail is connected to the roller of the sliding bracket.

4. The method of using the T-shaped shaft disassembly and assembly tool according to claim 1, characterized in that: The top of the fixed bracket is fixedly connected to a baffle by bolts.

5. The method of using the T-shaped shaft disassembly and assembly tool according to claim 1, characterized in that: The pressure rod is detachably connected to the sliding body by bolts and nuts.

6. The method of using the T-shaped shaft disassembly and assembly tool according to claim 1, characterized in that: The roller is fixedly connected to the sliding body by roller pins, washers, and nuts.

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