A shell and tube cooler core pull cart

Abstract

The application discloses a column-tube cooler core pulling trolley and relates to the technical field of maintenance tools. The trolley comprises a manual hydraulic forklift, a transmission chain mechanism assembly, a core clamping jaw mechanism assembly and a unit rack clamping jaw mechanism assembly. The transmission chain mechanism assembly is arranged on the manual hydraulic forklift. The core clamping jaw mechanism assembly is used for clamping a cooler core. The core clamping jaw mechanism assembly is driven by the transmission chain mechanism assembly to pull and install the cooler core. The unit rack clamping jaw mechanism assembly is rotationally arranged and used for being fixedly connected with a vacuum pump unit support. The core clamping jaw mechanism assembly clamps the cooler core, the unit rack clamping jaw mechanism assembly clamps the vacuum pump unit support, the transmission chain mechanism assembly drives the core clamping jaw mechanism assembly to move, the cooler core is pulled out, the dismounting work of the cooler core is completed, the dismounting process is safe and reliable, and the work efficiency is improved to a certain extent.

Description

Technical Field

[0001] This application relates to the field of maintenance tool technology, specifically to a tube-type cooler core removal trolley. Background Technology

[0002] During the operation of a Roots vacuum pump unit, the shell-and-tube cooler is an important component. Its main purpose is to absorb the heat generated during the operation of the vacuum pump unit through the heat exchange tubes of the cooler, thereby reducing the temperature of the compressed gas in the pump chamber and improving the pumping efficiency.

[0003] During long-term operation, the vacuum pump unit will draw a large amount of fine dust and impurities from the vacuum spherical tank into the shell of the tubular cooler, causing impurity accumulation. When cleaning the cooler core regularly, the accumulation of impurities and the irregular welds inside the shell of the tubular cooler cause the cooler core to be subjected to a large horizontal friction force when it is pulled out, requiring at least 4 construction workers to pull it out. The disassembly and replacement of the heat exchange tubes are very difficult.

[0004] When it comes to the maintenance of mechanical equipment, not only are time requirements strict, but safe production is also required. If simple mechanical devices can be used to solve problems in the production process, time and production costs can be significantly reduced. Utility Model Content

[0005] The main objective of this application is to provide a tube-type cooler core removal trolley, which aims to solve the above-mentioned technical problems.

[0006] The technical solution adopted in this application is as follows: A tube-type cooler core removal trolley includes: Manual hydraulic forklift; A drivetrain mechanism assembly, which is mounted on the manual hydraulic forklift; A core clamping mechanism assembly is used to clamp the cooler core, and the core clamping mechanism assembly is driven by the transmission chain mechanism assembly to remove and install the cooler core. The unit frame gripper mechanism assembly is rotatably configured for fixed connection with the vacuum pump unit bracket.

[0007] Furthermore, the transmission chain mechanism assembly includes: A set of mounting plates fixedly installed on the forklift arm of the manual hydraulic forklift; The transmission chain side plate is fixed to the mounting plate; The transmission chain mechanism is mounted on the transmission chain side plate. The transmission chain mechanism includes a pair of sprockets and a transmission chain connected between the sprockets. The sprockets are rotatably mounted on the transmission chain side plate via axles. A motor reducer assembly, which is used to drive the transmission chain mechanism.

[0008] Furthermore, the core gripper mechanism assembly includes: A gripper base, wherein the gripper base is fixed to the transmission chain; The gripper body is rotatably mounted on the gripper base. The gripper body includes a pair of spaced-apart gripping arms, one of which is provided with a locking bolt that can move forward and backward along the line connecting the two gripping arms.

[0009] Furthermore, the unit frame gripper mechanism assembly includes a U-shaped clamp body, which is rotatably mounted on the side of the transmission chain side plate, and an adjusting bolt is provided on one side of the U-shaped clamp body to open and close the clamp body opening.

[0010] Compared with the prior art, the beneficial effects of this application are: The embodiment of this application proposes a core removal trolley for tubular coolers. The core is clamped by a core clamping mechanism assembly, which in turn clamps the vacuum pump unit bracket with a unit frame clamping mechanism assembly. The core clamping mechanism assembly is moved by a transmission chain mechanism assembly to pull out the cooler core, thus completing the disassembly of the cooler core. The disassembly and assembly process is safe and reliable, and improves work efficiency to a certain extent. Attached Figure Description

[0011] Figure 1 A schematic diagram of the structure of the tube-type cooler core extraction trolley provided in an embodiment of this application from one perspective; Figure 2 A schematic diagram of the structure of the tube-type cooler core removal trolley provided in an embodiment of this application from another perspective; Figure 3 A schematic diagram of the structure of the shell-and-tube cooler core removal trolley provided in this application embodiment after removing one side of the drive chain side plate; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 A schematic diagram of the structure of the shell-and-tube cooler core removal trolley provided in the embodiment of this application in the working state; Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0012] Explanation of the labels in the attached drawings: 1-Manual hydraulic forklift, 2-Drive chain mechanism assembly, 201-Mounting plate, 202-Drive chain side plate, 203-Sprocket, 204-Drive chain, 205-Motor reducer assembly, 206-Transmission component, 3-Core gripper mechanism assembly, 301-Gripper base, 302-Gripper body, 303-Locking bolt, 4-Unit frame gripper mechanism assembly, 401-U-shaped clamp, 402-Adjusting bolt, 5-Cooler core. Detailed Implementation

[0013] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0014] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0015] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0016] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application. See attached document Figures 1 to 3As shown in the figure, this application provides a tube-type cooler core removal trolley, including a manual hydraulic forklift 1, a drive chain mechanism assembly 2, a cooler core gripper mechanism assembly 3, and a unit frame gripper mechanism assembly 4. The drive chain mechanism assembly 2 is mounted on the manual hydraulic forklift 1; the cooler core gripper mechanism assembly 3 is used to grip the cooler core, and is driven by the drive chain mechanism assembly 2 to remove and install the cooler core; the unit frame gripper mechanism assembly 4 is rotatably mounted for fixed connection to the vacuum pump unit bracket.

[0017] Specifically: like Figures 1 to 3 As shown, the drivetrain mechanism assembly 2 includes a mounting plate 201, a drivetrain side plate 202, a drivetrain mechanism, and a motor reducer assembly 205. Specifically, a mounting plate 201 is welded to each of the two forklift arms of the manual hydraulic forklift 1. Each mounting plate 201 has a drivetrain side plate 202 welded to it, and each drivetrain side plate 202 has a drivetrain mechanism mounted on it. Figure 3 As shown, the transmission chain mechanism includes a set of sprockets 203 and a transmission chain 204 that drives the sprockets 203. The sprockets 203 are mounted on the transmission chain side plate 202 via axles. The sprockets 203 are fixed on the axles, and the axles are rotatably connected to the transmission chain side plate 202 via bearings. Meanwhile, as... Figure 1 and Figure 2 As shown, a base plate is welded between the two transmission chain side plates 202. The bottom of the base plate is bolted to a motor reducer assembly 205, which drives the transmission chain mechanism on both sides to move through the transmission component 206.

[0018] In one embodiment, the transmission component 206 can adopt a worm gear mechanism. A worm structure can be provided at the output end of the motor reducer assembly 205. At the same time, the sprockets 203 located on the same side in the two transmission chain mechanisms share a wheel axle. A worm gear is centrally located on the wheel axle. The worm gear works in conjunction with the worm, so that the transmission chain mechanisms on both sides can be driven to move through the motor reducer assembly 205.

[0019] At the same time, such as Figure 3 and Figure 4 As shown, the cooler core gripper mechanism assembly 3 includes a gripper base 301, a gripper body 302, and a locking bolt 303. The gripper body 302 has a pivot, with gripping arms interference-fitted at both ends. Two gripping arms combine to form the gripper body 302. The area between the gripping arms is used to grip the cooler core. The gripper body 302 is rotatably mounted on the gripper base 301 via the pivot, and a locking bolt 303 is provided on one of the gripping arms. The locking bolt 303 can move forward and backward along the line connecting the two gripping arms to lock the cooler core gripped between the two gripping arms.

[0020] To enable the transmission chain mechanism 2 to drive the core gripper assembly to move, such as Figure 3 and Figure 4 As shown, each link of the transmission chain 204 is connected by a short pin. In this embodiment, the bottom of the gripper base 301 is provided with two connecting plates with holes. The connecting plates are designed to be interference-fitted onto the short pin of a certain link through the holes. Thus, when the transmission chain 204 moves under the drive of the sprocket 203, the gripper base 301 moves with the transmission chain 204, and the entire core gripper mechanism assembly 3 moves together. When the cooler core is gripped by the core gripper mechanism assembly 3, the cooler core can be pulled out.

[0021] At the same time, such as Figure 3 and Figure 4 As shown, the transmission chain side plate 202 is welded to the rear side of the manual hydraulic forklift 1. The side plate has a pre-drilled shaft hole. The unit frame gripper mechanism assembly 4 is rotatably mounted on the side plate. Specifically, the unit frame gripper mechanism assembly 4 includes a U-shaped clamp 401 and an adjusting bolt 402. The non-clamping end of the U-shaped clamp 401 passes through the shaft hole and rotates on the side plate. The adjusting bolt 402 is provided on the clamping opening side of the U-shaped clamp 401. The adjusting bolt 402 can be turned to seal the clamping opening. When it is necessary to remove the cooler core, the vacuum pump unit bracket has a U-shaped ear plate. The U-shaped ear plate is placed into the U-shaped clamp 401 and locked by the adjusting bolt 402, thereby fixing the vacuum pump unit bracket to the unit frame gripper mechanism assembly.

[0022] In summary, the embodiments of this application provide a trolley for removing the core of a shell-and-tube cooler, and its method of use is as follows: Figure 5 and Figure 6 As shown, during the disassembly of the cooler core 5, the core gripper mechanism assembly 3 is raised to a suitable height using a manual hydraulic forklift 1. Then, the flange of the cooler core 5 is fixed inside the gripper body 302 on the drive chain, and the flange is locked with locking bolts 303. The unit frame gripper mechanism assembly 4 is fixedly connected to the unit support. Then, the motor reducer assembly 205 is started to drive the drive chain mechanism assembly 2 to move, so that the core gripper mechanism assembly 3 moves to provide horizontal traction force, and the cooler core 5 is pulled out from the cooler housing.

[0023] After the cooler core 5 is cleaned, it is hoisted onto the manual hydraulic forklift 1, and the core clamping mechanism assembly 3 is fixedly clamped onto the flange of the cooler core 5. Then, the manual hydraulic forklift 1 is used to lift and lower it to a suitable height. After the unit frame clamping mechanism assembly 4 is fixedly connected to the unit bracket, the motor reducer assembly 205 is started to push the cooler core 5 into the cooler housing through the clamping body 302 on the transmission chain to achieve the installation of the cooler core.

[0024] As can be seen, this design can be applied to the disassembly and installation of cooler cores at different installation heights, providing a safe and reliable solution for the disassembly and installation of cooler cores.

[0025] It should be noted that the appendix Figure 1 , Figure 2 and Figure 3 The image only shows a section of the cooler core. Furthermore, the manual hydraulic forklift is existing technology and will not be discussed further here.

[0026] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A trolley for removing cores from a tubular cooler, characterized in that, include: Manual hydraulic forklift; A drivetrain mechanism assembly, which is mounted on the manual hydraulic forklift; A core clamping mechanism assembly is used to clamp the cooler core, and the core clamping mechanism assembly is driven by the transmission chain mechanism assembly to remove and install the cooler core. The unit frame gripper mechanism assembly is rotatably configured for fixed connection with the vacuum pump unit bracket.

2. The tube-type cooler core removal trolley according to claim 1, characterized in that, The transmission chain mechanism assembly includes: A set of mounting plates fixedly installed on the forklift arm of the manual hydraulic forklift; The transmission chain side plate is fixed to the mounting plate; The transmission chain mechanism is mounted on the transmission chain side plate. The transmission chain mechanism includes a pair of sprockets and a transmission chain connected between the sprockets. The sprockets are rotatably mounted on the transmission chain side plate via axles. A motor reducer assembly, which is used to drive the transmission chain mechanism.

3. The tube-type cooler core removal trolley according to claim 2, characterized in that, The core clamping mechanism assembly includes: A gripper base, wherein the gripper base is fixed to the transmission chain; The gripper body is rotatably mounted on the gripper base. The gripper body includes a pair of spaced-apart gripping arms, one of which is provided with a locking bolt that can move forward and backward along the line connecting the two gripping arms.

4. The tube-type cooler core removal trolley according to claim 2, characterized in that, The unit frame gripper mechanism assembly includes a U-shaped clamp body, which is rotatably mounted on the side of the transmission chain side plate. An adjusting bolt for opening and closing the clamp body opening is provided on one side of the U-shaped clamp body.

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