A shallow slot chain pin shaft dismounting device

Abstract

The application provides a shallow slot chain pin shaft dismounting device, which comprises a bottom plate, side plates oppositely arranged on both sides of the bottom plate, a baffle arranged on the top of the bottom plate and connected to the bottom plate and the side plates, the baffle being provided with a first recess, the baffle being used for positioning a jack device, a chain positioning device arranged on the top of the bottom plate and connected to the bottom plate, the chain positioning device being used for positioning a shallow slot chain, the shallow slot chain being provided with holes, the shallow slot chains being connected to each other through pin shafts penetrating the holes, the pin shafts being arranged in first gaps, wherein when the shallow slot chain is installed, a jacking rod abuts against the pin shafts, so that the pin shafts are connected to the shallow slot chain; when the shallow slot chain is dismounted, the jacking rod abuts against the pin shafts, so that the pin shafts are separated from the shallow slot chain, thereby solving the problems that the current dismounting of the shallow slot chain pin shaft mainly relies on manual mechanical operation, the labor intensity is extremely high, the dismounting time is relatively long, the impact force generated by manual hammering is easy to cause damage to the surface of the pin shaft, and the pin shaft is accelerated to wear.

Description

Technical Field

[0001] This application relates to the technical field of coal washing and processing equipment, and in particular to a shallow groove chain pin assembly and disassembly device. Background Technology

[0002] In the field of coal washing and processing, the heavy medium shallow trough separator is a key piece of equipment widely used in the sorting stage of raw coal systems in coal mines. Based on the principle of buoyancy, it achieves efficient coal sorting in the gravity field of magnetite powder. Lighter products (clean coal) with a density less than that of the medium float to the top, while heavier products with a density greater than that of the medium sink to the bottom of the sorting trough and are slowly transported out by a scraper device. As the core component of the separator, the shallow trough chain connects to the scrapers to form a transport chain, directly undertaking the task of scraping and conveying the heavier products. The shallow trough chain is a typical wear part, subject to wear from coal particles, corrosion from the medium, and alternating loads, and needs to be replaced entirely every three to four months.

[0003] In existing technologies, the assembly and disassembly of shallow groove chains mainly rely on manual mechanical operations. Specifically, the pin, as a key component connecting the scraper and the chain, is installed and removed manually by hammering: during installation, workers repeatedly strike the end of the pin with a sledgehammer, using the impact force to press it into the shaft hole; during removal, the pin is hammered in the opposite direction, forcing it out of the shaft hole. If the pin deforms due to long-term use, it needs to be further removed using hot work methods such as flame cutting.

[0004] Because manual hammering is extremely labor-intensive, each replacement operation requires 2-3 workers to operate continuously for 2-3 hours. Furthermore, the impact force generated by hammering can easily damage the surface of the pin or shaft hole, accelerating component wear. Secondly, hot cutting of deformed pins poses a significant safety hazard, as cutting sparks may ignite residual coal powder or media powder in the sorting tank, causing a fire or explosion. Moreover, there is currently a lack of precise control over the axial force of the pin, which can easily lead to deformation of the chain or scraper due to overload, shortening the overall service life of the equipment. Utility Model Content

[0005] This application provides a shallow groove chain pin disassembly and assembly device to solve the technical problems that the current disassembly and assembly of shallow groove chain pins mainly relies on manual mechanical operation, which is extremely labor-intensive and takes a long time. Furthermore, the impact force generated by manual hammering can easily damage the pin surface, leading to accelerated wear of the pin.

[0006] This application provides a shallow groove chain pin disassembly and assembly device, comprising:

[0007] A base plate, wherein side plates are provided on opposite sides of the base plate;

[0008] A baffle is disposed on the top of the base plate and connected to the base plate and the side plate; the baffle is provided with a first groove; the baffle is used to position the jack device;

[0009] A chain positioning device is disposed on the top of the base plate and connected to the base plate. A first gap is provided between the chain positioning devices. The chain positioning device is used to position shallow groove chains. The shallow groove chains are provided with holes, and pins pass through the holes to connect the shallow groove chains to each other. The pins are disposed within the first gap.

[0010] When the pin is located within the first gap, the push rod of the jack device is axially aligned with the pin.

[0011] When installing the shallow groove chain, the push rod abuts against the pin, connecting the pin to the shallow groove chain; when disassembling the shallow groove chain, the push rod abuts against the pin, disengaging the pin from the shallow groove chain.

[0012] In some embodiments, the shallow groove chain pin disassembly and assembly device further includes:

[0013] A front load-bearing plate is disposed on the top of the base plate and connected to the base plate and the side plate; the front load-bearing plate is disposed on the side of the chain positioning device away from the baffle; the shallow groove chain is disposed in the second gap between the front load-bearing plate and the chain positioning device; the front load-bearing plate and the chain positioning device are located in the same horizontal direction.

[0014] In some embodiments, a front reinforcing rib is provided between the front load-bearing plate and the bottom plate.

[0015] In some embodiments, the front bearing plate is provided with a second groove; the opening radius of the second groove is larger than the radius of the pin.

[0016] In some embodiments, the shallow groove chain pin disassembly and assembly device further includes:

[0017] A rear force plate is disposed on the top of the base plate and connected to the base plate and the side plate; the rear force plate is disposed on the side of the baffle away from the chain positioning device; the rear force plate, the baffle, the base plate and the side plate form a receiving space for accommodating the jack device.

[0018] In some embodiments, a rear reinforcing rib is provided on the side of the rear force-bearing plate away from the baffle; the rear reinforcing rib is connected to the rear force-bearing plate and the side plate.

[0019] In some embodiments, a triangular plate is provided on the top of the side plate, and a lifting hole is provided on the side of the triangular plate away from the side plate.

[0020] In some embodiments, a slide rail is provided along the width direction of the base plate; the chain positioning device is slidably connected to the base plate via the slide rail.

[0021] In some embodiments, when the pin is positioned within the first gap, the shallow groove chain abuts against the side plate; a third gap exists between the shallow groove chain and the bottom plate.

[0022] This application provides a shallow groove chain pin assembly / disassembly device, comprising: a base plate, with side plates disposed opposite to each other on both sides of the base plate; a baffle plate disposed on the top of the base plate and connected to the base plate and the side plates; the baffle plate having a first groove; the baffle plate being used to position a jack device; and a chain positioning device disposed on the top of the base plate and connected to the base plate, with a first gap between the chain positioning devices; the chain positioning device being used to position a shallow groove chain; the shallow groove chain having holes through which pins pass, allowing the shallow groove chains to interact with each other. The connection is as follows: the pin is disposed within the first gap; when the pin is located within the gap, the push rod of the jack device is axially aligned with the pin; when installing the shallow groove chain, the push rod abuts against the pin, connecting the pin to the shallow groove chain; when disassembling the shallow groove chain, the push rod abuts against the pin, disengaging the pin from the shallow groove chain. This addresses the current problem that disassembling and assembling the pin of a shallow groove chain mainly relies on manual mechanical operation, resulting in extremely high labor intensity and long disassembly and assembly time. Furthermore, the impact force generated by manual hammering easily damages the surface of the pin, leading to accelerated wear of the pin. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the shallow groove chain pin assembly / disassembly device in this application at one angle.

[0025] Figure 2 This is a schematic diagram of the shallow groove chain pin assembly / disassembly device in this application from another angle.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Base plate; 2-Side plate; 21-Triangle plate; 211-Lifting hole; 3-Baffle; 4-Jack device; 5-Chain positioning device; 6-Shallow groove chain; 61-Hole; 7-Pin; 8-Front bearing plate; 81-Front reinforcing rib; 9-Rear bearing plate; 91-Rear reinforcing rib. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0029] In some technologies, the disassembly and assembly of shallow groove chain pins mainly relies on manual mechanical operation, which is extremely labor-intensive and time-consuming. Furthermore, the impact force generated by manual hammering can easily damage the pin surface, leading to accelerated wear. To solve this technical problem, this application provides a shallow groove chain pin disassembly and assembly device. The structure of each part of the shallow groove chain pin disassembly and assembly device is described below:

[0030] like Figure 1 and Figure 2 The diagram shown is a structural schematic of the shallow groove chain pin assembly and disassembly device in this application.

[0031] This application provides a shallow groove chain pin disassembly and assembly device, comprising:

[0032] A base plate 1 is provided with side plates 2 on both sides of the base plate 1; a semi-enclosed space is formed between the base plate 1 and the side plates 2 for setting up devices such as chain positioning devices 5.

[0033] A baffle 3 is disposed on the top of the base plate 1 and connected to the base plate 1 and the side plate 2; the baffle 3 is provided with a first groove; the baffle 3 is used to position the jack device 4. The jack device 4 is connected to a hydraulic device, through which the extension and retraction of the jack device 4's push rod can be realized.

[0034] A chain positioning device 5 is disposed on the top of the base plate 1 and connected to the base plate 1. A first gap is provided between the chain positioning devices 5. The chain positioning device 5 is used to position the shallow groove chain 6. The shallow groove chain 6 is provided with a hole 61, and a pin 7 passes through the hole 61 to connect the shallow groove chains 6 to each other. The pin 7 is disposed in the first gap. The base plate 1, side plate 2, baffle 3, chain positioning device 5, etc. are all made of 20mm thick steel plate continuously and welded on both sides. The chain positioning device 5 is designed according to the size of the shallow groove chain 6. The distance between the chain positioning devices 5 is the diameter of the pin 7.

[0035] When the pin 7 is located within the first gap, the push rod of the jack device 4 is axially aligned with the pin 7. When installing the shallow groove chain 6, the push rod abuts against the pin 7, connecting the pin 7 to the shallow groove chain 6. When disassembling the shallow groove chain 6, the push rod abuts against the pin 7, disengaging the pin 7 from the shallow groove chain 6. Driven by hydraulic power, the push rod of the jack device 4 can be positioned opposite the pin 7, pressing the pin 7 into the hole 61 of the shallow groove chain 6, or pressing the pin 7 out of the hole 61 of the shallow groove chain 6.

[0036] This application provides a shallow groove chain pin assembly / disassembly device. In use, the pin 7 is engaged in the first gap between the two bosses of the chain positioning device 5. The jack device 4 is placed in the groove formed between the base plate 1, side plate 2, and baffle 3. When manually pressing the pump body operating lever to remove the pin 7, the push rod of the jack device 4 extends to push the pin 7 out; when installing the pin 7, the push rod of the jack device 4 extends to press the pin 7 into the shaft hole. The shallow groove chain pin assembly / disassembly device is small in size, convenient and quick to use, and reduces the labor intensity of workers. After use, there is no need to use a sledgehammer for striking or hot work, avoiding the risks of mechanical impact and fire, thus improving safety. After use, removing or assembling the pin 7 no longer requires striking with a sledgehammer; simply pressing the operating lever of the hydraulic device connected to the jack device 4 is sufficient to complete the installation or removal of the pin 7. Furthermore, it is highly applicable and versatile, with a simple and compact structure, ingenious mechanism, easy manufacturing, and good application results, and can be widely used in various coal preparation plants.

[0037] In this embodiment, the shallow groove chain pin disassembly and assembly device further includes:

[0038] A front load-bearing plate 8 is disposed on the top of the base plate 1 and connected to the base plate 1 and the side plate 2. The front load-bearing plate 8 is located on the side of the chain positioning device 5 away from the baffle 3. The shallow groove chain 6 is disposed in a second gap between the front load-bearing plate 8 and the chain positioning device 5. The front load-bearing plate 8 and the chain positioning device 5 are located in the same horizontal direction. A second gap is provided between the front load-bearing plate 8 and the chain positioning device 5, and the distance between the front load-bearing plate 8 and the chain positioning device 5 is equal to the thickness of two shallow groove chains 6.

[0039] Specifically, the front force plate 8 is used to support the shallow groove chain 6 sleeved on the chain positioning device 5, and to support the shallow groove chain 6 when installing or removing the pin 7 from the shallow groove chain 6, so as to prevent the chain positioning device 5 from being damaged by the base plate 1.

[0040] In this embodiment, a front reinforcing rib 81 is provided between the front load-bearing plate 8 and the base plate 1. The reinforcing rib 81 is used to reinforce the front load-bearing plate 8 and increase the connection strength between the front load-bearing plate 8 and the base plate 1.

[0041] In this embodiment, the front force-bearing plate 8 is provided with a second groove; the opening radius of the second groove is larger than the radius of the pin 7. By setting the opening radius of the second groove to be larger than the radius of the pin 7, the pin 7 can be disengaged from the shallow groove chain 6 from the second groove when disassembling the pin 7.

[0042] In this embodiment, the shallow groove chain pin disassembly and assembly device further includes:

[0043] A rear force-bearing plate 9 is disposed on the top of the base plate 1 and connected to the base plate 1 and the side plate 2. The rear force-bearing plate 9 is located on the side of the baffle 3 away from the chain positioning device 5. The rear force-bearing plate 9, the baffle 3, the base plate 1, and the side plate 2 form a receiving space for accommodating the jack device 4. The rear force-bearing plate 9 provides support to the jack device 4 when the push rod of the jack device 4 abuts against the pin 7, preventing the jack device 4 from dislodging from the groove formed between the base plate 1, the side plate 2, and the baffle 3.

[0044] In this embodiment, a rear reinforcing rib 91 is provided on the side of the rear load-bearing plate 9 away from the baffle 3; the rear reinforcing rib 91 is connected to the rear load-bearing plate 9 and the side plate 2. The rear reinforcing rib 91 is used to reinforce the rear load-bearing plate 9 and increase the connection strength between the rear load-bearing plate 9 and the bottom plate 1 and the side plate 2.

[0045] In this embodiment, a triangular plate 21 is provided on the top of the side plate 2, and a lifting hole 211 is provided on the side of the triangular plate 2 away from the side plate 2. The lifting hole 211 is used to connect to a crane, thereby facilitating the lifting of the shallow groove chain pin assembly / disassembly device and reducing the difficulty of transporting the shallow groove chain pin assembly / disassembly device.

[0046] In this embodiment, a slide rail is provided along the width direction of the base plate 1; the chain positioning device 5 is slidably connected to the base plate 1 via the slide rail. By providing the slide rail, the chain positioning device 5 can be moved along the width direction of the base plate 1, thereby adjusting the distance between the chain positioning devices 5 to meet the size requirements of the pin 7 in the shallow groove chain 6.

[0047] It is understandable that, compared to the setting where the chain positioning device 5 is fixed to the base plate 1, the chain positioning device 5 in this application is slidably connected to the base plate 1 via the slide rail. This allows the distance between the chain positioning devices 5 to be adjusted via the slide rail to meet the size requirements of the pin 7 in the shallow groove chain 6. However, the setting where the chain positioning device 5 is fixed to the base plate 1 requires the customization of a matching shallow groove chain pin disassembly and assembly device based on the size requirements of the pin 7, which increases the manufacturing cost of the shallow groove chain pin disassembly and assembly device.

[0048] In this embodiment, when the pin 7 is positioned within the first gap, the shallow groove chain 6 abuts against the side plate 2, such as... Figure 2 As shown, there is a third gap between the shallow groove chain 6 and the base plate 1. Through the structural arrangement of the side plate 2, when the pin 7 is positioned within the first gap, there is a certain distance between the shallow groove chain 6 and the base plate 1. This facilitates the removal of the shallow groove chain 6 from the shallow groove chain pin disassembly and assembly device after the shallow groove chain 6 has completed the installation or removal of the pin 7.

[0049] This application provides a shallow groove chain pin removal and installation device. In use, the pin 7 is engaged in the first gap between the two bosses of the chain positioning device 5. The jack device 4 is placed in the groove formed between the base plate 1, side plate 2, and baffle 3. When removing the pin 7, the jack device 4 is equipped with a manual pump body operating lever. When the pin 7 needs to be removed, the operator presses the pump body operating lever, and the push rod of the jack device 4 slowly extends under hydraulic pressure, pushing the pin 7 out of its installation position with a uniform and stable force. The entire process is smooth and orderly, avoiding damage to the pin or other components of the equipment that might be caused by striking with a sledgehammer. Similarly, when installing the pin 7, simply pressing the operating lever extends the push rod of the jack device 4, accurately pressing the pin into the shaft hole, ensuring the installation accuracy and quality of the shallow groove chain 6. After using the shallow groove chain pin disassembly and assembly device provided in this application, there is no need to use a sledgehammer for impact disassembly or hot work, avoiding the risks of mechanical impact and fire, and improving the safety factor. After use, the disassembly and assembly of the pin 7 no longer requires the use of a sledgehammer. Simply press the pump body operating rod gently to make the push rod extend out of the jack device 4 and abut against the pin 7 to complete the installation or removal of the pin 7. Moreover, it is highly applicable and versatile, with a simple and compact structure, ingenious mechanism, easy manufacturing, and good application effect, and can be widely used in various coal preparation plants.

[0050] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A shallow groove chain pin assembly / disassembly device, characterized in that, include: A base plate (1) is provided with side plates (2) on both sides of the base plate (1); A baffle (3) is provided on the top of the base plate (1) and is connected to the base plate (1) and the side plate (2); the baffle (3) is provided with a first groove; the baffle (3) is used to position the jack device (4); A chain positioning device (5) is disposed on the top of the base plate (1) and connected to the base plate (1). A first gap is provided between the chain positioning devices (5). The chain positioning device (5) is used to position the shallow groove chain (6). The shallow groove chain (6) is provided with a hole (61), and a pin (7) passes through the hole (61) to connect the shallow groove chains (6) to each other. The pin (7) is disposed in the first gap. When the pin (7) is located within the first gap, the push rod of the jack device (4) is axially aligned with the pin (7); When installing the shallow groove chain (6), the push rod abuts against the pin (7) to connect the pin (7) to the shallow groove chain (6); when disassembling the shallow groove chain (6), the push rod abuts against the pin (7) to disengage the pin (7) from the shallow groove chain (6).

2. The shallow groove chain pin assembly / disassembly device according to claim 1, characterized in that, Also includes: A front load-bearing plate (8) is disposed on the top of the base plate (1) and connected to the base plate (1) and the side plate (2); the front load-bearing plate (8) is disposed on the side of the chain positioning device (5) away from the baffle (3); the shallow groove chain (6) is disposed in the second gap between the front load-bearing plate (8) and the chain positioning device (5); the front load-bearing plate (8) and the chain positioning device (5) are located in the same horizontal direction.

3. The shallow groove chain pin assembly / disassembly device according to claim 2, characterized in that, A front reinforcing rib (81) is provided between the front load-bearing plate (8) and the bottom plate (1).

4. The shallow groove chain pin assembly and disassembly device according to claim 2, characterized in that, The front bearing plate (8) is provided with a second groove; the opening radius of the second groove is greater than the radius of the pin (7).

5. The shallow groove chain pin assembly and disassembly device according to claim 1, characterized in that, Also includes: The rear force plate (9) is located on the top of the base plate (1) and is connected to the base plate (1) and the side plate (2). The rear force plate (9) is located on the side of the baffle (3) away from the chain positioning device (5). The rear force plate (9), baffle (3), base plate (1), and side plate (2) form a receiving space for accommodating the jack device (4).

6. The shallow groove chain pin assembly and disassembly device according to claim 5, characterized in that, The rear load-bearing plate (9) is provided with a rear reinforcing rib (91) on the side away from the baffle (3); the rear reinforcing rib (91) is connected to the rear load-bearing plate (9) and the side plate (2).

7. The shallow groove chain pin assembly and disassembly device according to claim 1, characterized in that, A triangular plate (21) is provided on the top of the side plate (2), and a lifting hole (211) is provided on the side of the triangular plate (21) away from the side plate (2).

8. The shallow groove chain pin assembly and disassembly device according to claim 1, characterized in that, A slide rail is provided along the width direction of the base plate (1); the chain positioning device (5) is slidably connected to the base plate (1) through the slide rail.

9. The shallow groove chain pin assembly and disassembly device according to claim 1, characterized in that, When the pin (7) is positioned within the first gap, the shallow groove chain (6) abuts against the side plate (2); there is a third gap between the shallow groove chain (6) and the bottom plate (1).

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