Hydraulic support disassembly and cleaning operation line

Abstract

The present invention discloses a hydraulic support disassembly and cleaning operation line, which includes a loosening system, a disassembly system, and a cleaning system arranged in sequence. A transfer mechanism for carrying the hydraulic support is provided between the loosening system and the disassembly system; the loosening system includes a loosening chamber that can accommodate the transfer mechanism and the hydraulic support. A vibrating table for fixing the hydraulic support is provided on the transfer mechanism. A support fixator and a vibration generator are provided on the vibrating table. There is a vibration buffer between the vibrating table and the transfer mechanism. The loosening system is connected with a dust removal system; the disassembly system includes a disassembly frame. A weighing platform capable of carrying the transfer mechanism is arranged in the disassembly frame. The weighing platform is connected with a weight sensor. A lifting device is arranged above the weighing platform on the disassembly frame. The lifting device is used for lifting the components of the hydraulic support; a pin removal device is installed on the disassembly frame. The present invention reduces the disassembly difficulty, realizes efficient disassembly and cleaning, reduces the use of manpower, and reduces the labor intensity of workers.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment disassembly and cleaning, and particularly to a hydraulic support disassembly and cleaning production line. Background Art

[0002] Hydraulic supports are support equipment used in coal mining faces. Usually, dozens to hundreds of them are used in each coal mining face. Given the working environment of large-area dust and spray in the coal mining face, during the use of hydraulic supports, coal seams will continuously adhere to the surface, coal dust will fill the gaps such as shaft holes, and coal powder will accumulate locally. Over time, hard coal scale will form on the surface and in the gaps such as shaft holes of the hydraulic supports, and even caking will occur in the parts where coal powder accumulates, seriously affecting the operation. Therefore, it is necessary to regularly lift the hydraulic supports out of the well for disassembly and cleaning to maintain their good support operation ability.

[0003] The traditional process for disassembling and cleaning hydraulic supports usually involves soaking them in a soaking pool for 3 - 5 days to soften the coal scale and caking, then rinsing them as a whole with a high-pressure water gun, and finally disassembling them and performing detailed cleaning of the components. This disassembly and cleaning process has many deficiencies. First, this disassembly and cleaning process requires a long soaking time, and the disassembly and cleaning cycle of a single hydraulic support is relatively long, resulting in the disassembly and cleaning work of the hydraulic supports in a coal mining face usually being counted on a monthly basis, which delays the coal mining process. Second, the soaking effects of different hydraulic supports vary greatly. For example, the coal scale in the gaps such as shaft holes often cannot be effectively soaked. In addition, there are varying degrees of rust on the surface of the pin shafts. When disassembling the hydraulic supports, the pin shafts between large components, such as the pin shafts between the top beam and the shield beam, and the pin shafts between the connecting rod and the base, will have a large disassembly resistance due to component extrusion, coal scale and rust slag blocking the shaft holes, etc., resulting in difficult pin shaft disassembly and low disassembly efficiency of the hydraulic supports. Third, in the case of a large disassembly resistance as described above, during the disassembly process, it is often necessary to use a traveling crane to lift the top beam, etc. to relieve the component extrusion on the pin shaft, and use manual knocking on the pin shaft, etc. to relieve the situation of coal scale and rust slag blocking the shaft hole to slowly achieve the disassembly of the pin shaft. This cooperative operation has a large manual labor intensity, high requirements for experience such as traveling crane lifting, and low efficiency.

[0004] In summary, the traditional disassembly and cleaning method occupies a large amount of manpower, has a high manual labor intensity, and low efficiency, so it can no longer meet the requirements of coal mine quality improvement and efficiency increase. Therefore, it is necessary to optimize and improve the hydraulic support disassembly and cleaning operation to improve the current situation of hydraulic support disassembly and cleaning. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a hydraulic support disassembly and cleaning production line that reduces the disassembly difficulty, realizes efficient disassembly and cleaning, reduces the use of manpower, and reduces the manual labor intensity.

[0006] To solve the above technical problems, the technical solution of the present invention is: a hydraulic support disassembly and cleaning operation line, including a loosening system, a disassembly system, and a cleaning system arranged in sequence. A transfer mechanism for carrying the hydraulic support is provided between the loosening system and the disassembly system; the loosening system includes a loosening chamber that can accommodate the transfer mechanism and the hydraulic support. A vibrating table for fixing the hydraulic support is provided on the transfer mechanism. A support fixator and a vibration generator are provided on the vibrating table. There is a vibration buffer between the vibrating table and the transfer mechanism. The loosening system is connected with a dust removal system; the disassembly system includes a disassembly frame. A weighing platform for carrying the transfer mechanism is provided inside the disassembly frame. The weighing platform is connected with a weight sensor. A lifting device is provided above the weighing platform on the disassembly frame. The lifting device is used for lifting the components of the hydraulic support; a pin removal device is installed on the disassembly frame.

[0007] As a preferred technical solution, the pin removal device includes a support installed on the disassembly frame. A connecting pin body that can be connected to the outer end of the pin on the hydraulic support is provided on the support. One end of the connecting pin body away from the pin is connected with a pull pin seat through an elastic structure. A pull pin applicator for pulling the pull pin seat away from the connecting pin body is installed on the support. A clutch device is provided between the force application end of the pull pin applicator and the pull pin seat. A counter-collision body that crosses the connecting pin body and can contact the outer end face of the pin is provided on the pull pin seat.

[0008] As a preferred technical solution, a position adjustment device is provided between the support and the disassembly frame.

[0009] As a preferred technical solution, the lifting device includes a lifting seat. A lifting chain belt is installed on the lifting seat. Lifting hooks are installed on the lifting chain belt. A lifting applicator is provided between the upper end of the lifting chain belt and the lifting seat.

[0010] As a preferred technical solution, a flipping system is further provided between the disassembly system and the cleaning system. The transfer mechanism can transfer the hydraulic support to the cleaning system.

[0011] As a preferred technical solution, the cleaning system includes at least one cleaning pool. Ultrasonic generators are installed in the cleaning pool.

[0012] As a preferred technical solution, the bottom pipeline of the cleaning pool is connected with a muddy water extraction device. The mud outlet end of the muddy water extraction device is connected with a muddy water separation device. The water outlet end of the muddy water separation device is connected with a clean water pool. A water body reuse device is provided between the clean water pool and the cleaning pool.

[0013] As a preferred technical solution, the disassembly and cleaning operation includes the following steps:

[0014] Step 1: Place the hydraulic support on the vibrating table of the transfer mechanism and fix it with the support fixator. After the transfer mechanism moves the hydraulic support into the loosening chamber, turn on the dust removal system and the vibration generator to loosen the coal scale on the hydraulic support through vibration. After the vibration fixing time t, stop the dust removal system and the vibration generator.

[0015] Step 2: Move the transfer mechanism to the weighing platform. The weight sensor senses the total weight on the weighing platform in real time. Lift the components that need to be lifted on the hydraulic support through the lifting device, and make the weight sensor sense that the total weight on the weighing platform decreases by a fixed difference, so that the pin shafts to be disassembled reach an ideal state for easy disassembly. Then the pin removal device starts the pin removal operation.

[0016] Step 3: Clean each component of the hydraulic support after pin removal.

[0017] Among them, after the next hydraulic support vibrates for the fixed time t in the loosening chamber, if the previous hydraulic support is still performing Step 2, keep the next hydraulic support in the loosening chamber and keep the dust removal system for dust removal.

[0018] As a preferred technical solution, the method for determining the fixed difference in Step 2 is as follows:

[0019] First step: Determine an initial difference according to the weight of the components that need to be lifted. After the transfer mechanism carrying the hydraulic support moves to the weighing platform, the lifting device lifts the components that need to be lifted on the hydraulic support, so that the total weight sensed by the weight sensor decreases by the initial difference.

[0020] Second step: According to the direction of the extrusion force on the pin shaft to be disassembled at this time, lift or lower the lifted component in the direction opposite to this extrusion direction, and stop immediately after the pin shaft to be disassembled crosses the ideal state for easy disassembly. At this time, the direction of the extrusion force on the pin shaft to be disassembled is opposite to the direction when lifting the initial difference, and the difference sensed by the weight sensor at this time becomes the first lower difference.

[0021] Third step: Lift or lower the lifted component in the direction opposite to the extrusion direction at this time, and also stop immediately after the pin shaft to be disassembled crosses the ideal state for easy disassembly. At this time, the direction of the extrusion force on the pin shaft to be disassembled is the same as the direction when lifting the initial difference, and the difference sensed by the weight sensor at this time becomes the first upper difference.

[0022] Fourth step: Take the average value of the first lower difference and the first upper difference.

[0023] Step 5: Repeat the operations in Step 2 to Step 4 to obtain multiple of the said average values; then average the multiple average values to obtain the said fixed difference.

[0024] As a preferred technical solution, during the pin removal operation of the pin removal device in Step 2, the vibration generator is used for auxiliary loosening.

[0025] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0026] (1) The hydraulic support hoisted out of the well is directly fixed on the said vibration table for vibration loosening; the vibration is transmitted relying on the self-structure of the hydraulic support. Therefore, even the coal scale in gaps such as shaft holes can be effectively loosened without dead angles; and the coal scale that has been effectively loosened has a significantly reduced blocking effect on pin removal, the pin removal difficulty is reduced, and thus the disassembly difficulty of the entire hydraulic support is reduced;

[0027] (2) During the pin removal process, the weight sensor is used to sense the lifting degree of the lifting device, so that the pin to be removed can be in an ideal state where it is not under extrusion or is under less extrusion, which is easy to disassemble. And the pre-treatment of the hydraulic support only adopts dry vibration loosening, so that it is not easy for impurities such as water bodies that affect the lifting weight to exist in the components to be lifted, ensuring accurate lifting; combined with the significant reduction of the blocking effect of coal scale, the pin removal difficulty is further reduced, and the disassembly difficulty of the entire hydraulic support is also further reduced;

[0028] (3) Compared with soaking, the time for vibration loosening is significantly shortened, the rough cleaning time of the coal scale on the hydraulic support is significantly reduced, and combined with the reduction of the pin removal difficulty, the overall disassembly and cleaning efficiency is significantly improved;

[0029] (4) During the disassembly process, there is no need for manual assistance to knock the pins, the use of manpower is reduced, and the lifting degree is also accurately controlled by weight sensing. There is no high experience requirement for the disassembly process, and the manual labor intensity is significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The following drawings are only intended to illustrate and explain the present invention and do not limit the scope of the present invention. Among them:

[0031] Figure 1 is the structural schematic diagram of the embodiment of the present invention;

[0032] Figure 2 is the structural schematic diagram of the loosening system of the embodiment of the present invention;

[0033] Figure 3 is the structural schematic diagram of the disassembly system of the embodiment of the present invention;

[0034] Figure 4 is Figure 3Schematic right view structure diagram;

[0035] Figure 5 is a schematic structure diagram of one of the pin removal devices in an embodiment of the present invention;

[0036] Figure 6 is Figure 5 Schematic diagram of the state during pin pulling;

[0037] Figure 7 is Figure 6 Schematic diagram of the state when the anti - collision body collides with the pin shaft in the middle.

[0038] In the figure: 1 - Loose system; 11 - Loose chamber; 12 - Shaking table; 13 - Bracket fixator; 14 - Vibration generator; 15 - Vibration buffer; 16 - Dust removal system;

[0039] 2 - Disassembly system; 21 - Disassembly frame; 22 - Weighing platform; 23 - Weight sensor; 24 - Lifting device; 241 - Lifting seat; 242 - Lifting chain belt; 243 - Lifting actuator; 25 - Pin removal device; 251 - Connecting pin body; 252 - Elastic structure; 253 - Pin - pulling seat; 254 - Pin - pulling actuator; 255 - Clutch device; 256 - Anti - collision body; 257 - Support;

[0040] 3 - Tipping system;

[0041] 4 - Cleaning system; 41 - Cleaning pool; 42 - Ultrasonic generator; 43 - Mud and water extraction device; 44 - Mud - water separation device; 45 - Clean water pool; 46 - Water reuse device;

[0042] 5 - Transfer mechanism; 51 - Transfer vehicle; 52 - Transfer track;

[0043] 9 - Hydraulic support; 91 - Roof beam; 92 - Shield beam; 93 - Connecting rod; 94 - Base; 95 - Pin shaft. Detailed implementation manners

[0044] The present invention will be further described below in conjunction with the drawings and embodiments. In the following detailed description, only the exemplary embodiments of the present invention are described by way of illustration. It is understood that those of ordinary skill in the art can recognize that, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the drawings and the description are illustrative in nature and are not used to limit the protection scope of the claims.

[0045] As Figures 1 to 7As commonly shown, the hydraulic support disassembly and cleaning operation line includes a loosening system 1, a disassembly system 2, and a cleaning system 4 arranged in sequence. A transfer mechanism 5 for carrying the hydraulic support 9 is provided between the loosening system 1 and the disassembly system 2. The transfer mechanism 5 is used to transfer the hydraulic support 9 between the systems. Conventionally, the transfer mechanism 5 includes a transfer vehicle 51; preferably, a transfer track 52 for guiding the travel of the transfer vehicle 51 is provided between the loosening system 1 and the disassembly system 2.

[0046] The loosening system 1 performs dry loosening on the coal scale on the hydraulic support 9. In this embodiment, the loosening system 1 includes a loosening chamber 11 that can accommodate the transfer mechanism 5 and the hydraulic support 9, that is, the transfer mechanism 5 can move the hydraulic support 9 into the loosening chamber 11; a vibrating table 12 for fixing the hydraulic support 9 is provided on the transfer mechanism 5, a support fixture 13 and a vibration generator 14 are provided on the vibrating table 12, and a vibration buffer 15 is provided between the vibrating table 12 and the transfer mechanism 5. The hydraulic support 9 is fixed to the vibrating table 12 through the support fixture 13, and the vibration generated by the vibration generator 14 can cause the hydraulic support 9 to vibrate synchronously, and this vibration effect can cause the coal scale on the hydraulic support 9 to loosen quickly. Vibration loosening has no dead angle and higher efficiency compared to soaking, and it usually takes only about ten minutes to complete.

[0047] Among them, the support fixture 13 can be implemented in forms such as a C-shaped clamp or bolt fixation, and the vibration generator 14 can be implemented by devices such as a vibration motor or an exciter that can generate vibration. The vibration buffer 15 is used to buffer the vibration and reduce the impact of the vibration on the transfer mechanism 5, and it can be implemented by a shock pad or a shock spring, etc.

[0048] Based on the fact that the above dry vibration loosening will generate dust, the loosening system 1 in this embodiment is connected to a dust removal system 16 for collecting the generated dust in real time, avoiding dust pollution, reducing the risk of dust explosion, and facilitating the realization of the resource utilization of coal dust.

[0049] The disassembly system 2 is used to disassemble the various components of the hydraulic support 9, especially the pins 95 between large components, such as the pins 95 between the top beam 91 and the shield beam 92, the pins 95 between the connecting rod 93 and the base 94, etc. The disassembly system 2 of this embodiment includes a disassembly frame 21, and a weighing platform 22 capable of carrying the transfer mechanism 5 is provided in the disassembly frame 21. For the transfer vehicle 51 that moves on the transfer rail 52 in this embodiment, the transfer rail 52 is correspondingly provided on the weighing platform 22; the weighing platform 22 is connected to a weight sensor 23 for real-time sensing of the total weight of the objects on the weighing platform 22; the disassembly frame 21 is provided with a lifting device 24 above the weighing platform 22, and the lifting device 24 is used to lift the components of the hydraulic support 9; the disassembly frame 21 is installed with a disassembly device 25.

[0050] When the transfer mechanism 5 moves the hydraulic support 9 onto the weighing platform 22, the weight sensor 23 senses the change in total weight, which enables precise control of the lifting degree of the lifting device 24. This makes it easy for the pins 95 between large components to quickly reach an ideal state for easy disassembly, thereby achieving rapid disassembly of the pins 95 and improving the overall disassembly efficiency of the hydraulic support 9. The ideal state for easy disassembly of the pins 95 is a state in which the pins 95 are not squeezed by the components, or the squeezing effect is so small that it does not substantially affect the outward disassembly of the pins 95.

[0051] The lifting device 24 of this embodiment includes a lifting seat 241, mounted on which is a lifting chain 242. A lifting hook is mounted on the lifting chain 242, and a lifting force applicator 243 is provided between the upper end of the lifting chain 242 and the lifting seat 241. The lifting hook is hooked into the lifting hole of the component to be lifted, and the lifting force applicator 243 applies force to lift the component. The lifting force applicator 243 can be implemented by a hydraulic cylinder, a motor winch, or other means.

[0052] The pin dismantling device 25 includes a support 257 installed on the dismantling frame 21, and the support 257 is provided with a connecting pin body 251 that can be connected to the outer end of the pin shaft 95 on the hydraulic support 9, and the end of the connecting pin body 251 away from the pin shaft 95 is connected to a pin pull seat 253 through an elastic structure 252, and a pin pull forcer 254 that can pull the pin pull seat 253 away from the connecting pin body 251 is installed on the support 257, and a clutch device 255 is provided between the force applying end of the pin pull forcer 254 and the pin pull seat 253, and a collision body 256 is provided on the pin pull seat 253 that passes over the connecting pin body 251 and can contact the outer end surface of the pin shaft 95.

[0053] After the hydraulic support 9 is sent onto the weighing platform 22, the connecting pin body 251 is used to connect with the outer end of the pin shaft 95 to be disassembled. The clutch device 255 first combines the force application end of the pin pulling actuator 254 with the pin pulling seat 253 into one body. The pin pulling actuator 254 pulls the pin pulling seat 253 to move away from the connecting pin body 251, and the elastic structure 252 generates a force to pull the pin shaft 95 outwards. If the blockage of the pin shaft 95 is small, the elastic structure 252 can slowly pull out the pin shaft 95 to form the disassembly of the pin shaft 95. If the blockage of the pin shaft 95 is large, after the elastic structure 252 deforms to a certain extent, the pin pulling actuator 254 can no longer pull. At this time, the clutch device 255 separates the force application end of the pin pulling actuator 254 from the pin pulling seat 253. The relatively large elastic force of the elastic structure 252 drives the pin pulling seat 253 to quickly rebound. The impact body 256 will impact on the outer end face of the pin shaft 95, and the pin shaft 95 will move inwards to a certain extent. The coal scale, rust slag, etc. blocked in the shaft hole due to pin pulling can fall out of the shaft hole. After performing the above operations multiple times, the blocking effect of coal scale, rust slag, etc. will be significantly reduced, and the pin shaft 95 can be gradually and smoothly disassembled. Among them, in this embodiment, a dry vibration and loosening pre-treatment is adopted to keep the coal scale, rust slag, etc. in the shaft hole in a dry state. Compared with the wet state, the dry state has a weaker ability to adhere to the surface of the structure. Therefore, it is easier to fall out of the shaft hole smoothly when the pin shaft 95 moves inwards due to impact. Therefore, dry vibration and loosening is a necessary condition for this embodiment to apply this pin disassembling device 25 structure and achieve quick pin disassembly.

[0054] In the pin disassembling device 25, the clutch device 255 preferably adopts an electromagnet structure, which can easily produce a convenient clutch effect on the pin pulling seat 253 made of a ferromagnetic material. The elastic structure 252 is realized by adopting a spring structure, and the pin pulling actuator 254 can be realized by using a structure such as an oil cylinder, a cylinder, or a motor combined with a linear transmission that can realize linear pin pulling.

[0055] Preferably, a position adjusting device is provided between the support 257 and the disassembly frame 21 to adapt to different models of hydraulic supports 9 and adjust the pin disassembly position adaptively. The position adjusting device can be realized by adopting a structure that can be adjusted in the height direction and the front and rear directions of the hydraulic support 9. It can also be additionally configured with a structure that can be adjusted in the left and right directions of the hydraulic support 9 to broaden the application range of the pin disassembling device 25. For the two-dimensional movement adjustment in the height direction and the front and rear directions of the hydraulic support 9, and the three-dimensional movement adjustment in the height direction, the front and rear, and the left and right directions of the hydraulic support 9, these are conventional technical means that are easily known to those skilled in the art and can be applied here. Therefore, they will not be elaborated here and are not shown in the figure.

[0056] The cleaning system 4 performs detailed cleaning on each disassembled component. The cleaning system 4 in this embodiment includes at least one cleaning tank 41, and an ultrasonic generator 42 is installed in the cleaning tank 41. The hydraulic support 9 is ultrasonically cleaned in the cleaning tank 41 through the ultrasonic generator 42.

[0057] Preferably, a muddy water extraction device 43 is connected to the bottom pipeline of the cleaning tank 41. The mud outlet end of the muddy water extraction device 43 is connected to a muddy water separation device 44. The water outlet end of the muddy water separation device 44 is connected to a clean water tank 45. A water body recycling device 46 is provided between the clean water tank 45 and the cleaning tank 41. The muddy water extraction device 43 extracts the coal slime washed off in the cleaning tank 41 and mainly deposited at the bottom of the tank, and uses the muddy water separation device 44 to separate the coal slime and the water body. The separated water body then returns to the cleaning tank 41 through the water body recycling device 46 for use. Thus, the water body in the cleaning tank 41 can be recycled and continuously purified, and the recovery and utilization of coal slime resources can be realized.

[0058] In addition, a flipping system 3 is provided between the disassembly system 2 and the cleaning system 4. The flipping system 3 is used to flip components such as the single top beam 91 or the shield beam 92 removed, so that their top surfaces are on the ground, to facilitate stable placement after being lifted into the cleaning system 4. The flipping system 3 can adopt the method in the prior art of making one end of the component touch the ground and then using a crane to horizontally move the non-touching end of the component to achieve the flipping of the component. The transfer mechanism 5 can transfer the hydraulic support 9 to the cleaning system 4. For the structure of the transfer mechanism 5 in this embodiment, the transfer track 52 extends to the flipping system 3.

[0059] The disassembly and cleaning operation of this embodiment includes the following steps.

[0060] Step 1: Place the hydraulic support 9 on the vibrating table 12 of the transfer mechanism 5 and fix it with the support fixator 13. After the transfer mechanism 5 transfers the hydraulic support 9 into the loosening chamber 11, turn on the dust removal system 16 and the vibration generator 14 to loosen the coal scale on the hydraulic support 9 through vibration. After vibrating for a fixed time t, stop the dust removal system 16 and the vibration generator 14.

[0061] In this embodiment, dry vibration and loosening are adopted to achieve the separation of coal scale, even caking. The vibration is transmitted by relying on the structure of the hydraulic support 9 itself. Therefore, even the coal scale in gaps such as shaft holes can be effectively loosened without dead angles. For the effectively loosened coal scale, the blocking effect on pin removal is significantly reduced, the difficulty of pin removal is reduced, and thus the disassembly difficulty of the entire hydraulic support 9 is reduced. At the same time, compared with soaking, the time of vibration and loosening is significantly shortened, the rough cleaning time of the coal scale on the hydraulic support 9 is significantly reduced, and combined with the reduction of the pin removal difficulty, the overall disassembly and cleaning efficiency is significantly improved.

[0062] Step 2: Move the transfer mechanism 5 to the weighing platform 22, and the weight sensor 23 continuously senses the total weight on the weighing platform 22; lift the components that need to be lifted on the hydraulic support 9 through the lifting device 24, and make the weight sensor 23 sense that the total weight on the weighing platform 22 decreases by a fixed difference, so that the pin 95 to be disassembled reaches an ideal state for easy disassembly, and then the pin removal device 25 starts the pin removal operation.

[0063] Since the coal scale and caking conditions of each hydraulic support 9 are different, the weight of each hydraulic support 9 is different, and the caking on the hydraulic support 9 mostly exists on the base 94, and the base 94 is prone to accumulate coal scale and the like that fall off during vibration and loosening. In this embodiment, the lifting degree is determined by the total weight on the weighing platform 22 decreasing by a fixed difference. Compared with reducing the weight on the weighing platform 22 to a certain weight value, it can more accurately reflect the extrusion situation of the pin 95 to be disassembled. And the hydraulic support 9 only adopts dry vibration and loosening as a pre-treatment, so that it is not easy for impurities such as water bodies that affect the lifting weight to exist in the components to be lifted, ensuring accurate lifting; this embodiment adopts a pin removal method of pulling the pin 95 and then hitting it in the reverse direction, and it is also easy to quickly remove the blocked coal scale and rust slag in the shaft hole on the premise of dry vibration and loosening. Therefore, during the entire pin removal process, the extrusion effect of the components on the pin 95 and the blocking effect of coal scale, rust slag, etc. are significantly reduced, the pin removal difficulty is further reduced, and the disassembly difficulty of the entire hydraulic support 9 is also further reduced.

[0064] Regarding the easy disassembly of the pin 95, the lifting degree of the lifting device 24, that is, the determination of the above fixed difference, is very crucial. It should be noted here that for the two components connected by the pin 95 to be disassembled, generally the component with a lower position is regarded as fixed, and the component with a higher position forms an extrusion effect on the pin 95 under the action of its own weight, and lifting is to balance this self-weight effect and reduce the extrusion degree of the pin 95; but for the overall hydraulic support 9, the components to be lifted, such as cylinders, are also connected to other components, so the actual lifting force often does not equal the self-weight of the component. Therefore, it is necessary to actually determine the lifting force, that is, the above fixed difference. The method for determining the fixed difference in this step is as follows.

[0065] The first step is to determine an initial difference based on the weight of the component to be lifted. For example, if the component to be lifted is the top beam 91, the hydraulic support 9 weighs 20 tons, and the top beam 91 weighs 5 tons, then the initial difference is set to 5 tons. When the transfer mechanism 5 carrying the hydraulic support 9 moves onto the weighing platform 22, the lifting device 24 lifts the component to be lifted from the hydraulic support 9, reducing the total weight sensed by the weight sensor 23 by the initial difference, for example, by 5 tons.

[0066] The second step is to lower or lift the lifted component in the opposite direction of the extrusion direction based on the direction of the extrusion applied to the pin 95 to be removed. For example, if the lifting force is large, meaning that the top beam 91 is exerting an upward extrusion force on the pin 95, the lifting force should be reduced, meaning that the top beam 91 should be lowered. The pin 95 to be removed stops immediately after it passes the ideal state of easy removal. At this point, the direction of the extrusion applied to the pin 95 to be removed is opposite to the direction of the initial lifting difference, meaning that after passing the ideal state, the top beam 91 turns to squeeze the pin 95 downward. At this point, the difference sensed by the weight sensor 23 becomes the first lower difference. For example, after the lowering operation, the weight sensor 23 senses an actual weight of 15.46 tons, so the first lower difference is 20-15.46=4.54 tons. The ideal state of the pin shaft 95 being easy to disassemble can be displayed intuitively by applying an outward pulling force to the pin shaft 95 in real time through the pin disassembly device 25, that is, during the above-mentioned lowering operation, the pin shaft 95 can be pulled outward at the moment it reaches the ideal state of easy disassembly, that is, at the moment it is not squeezed or is squeezed to a lesser extent.

[0067] The third step is to lift or lower the component in the opposite direction of the current extrusion. For example, in the second step, this involves lifting the top beam 91. Similarly, the process stops immediately after the pin 95 to be removed passes the ideal position for easy removal. The direction of extrusion on the pin 95 to be removed is now the same as the direction of the initial difference in lifting, and the difference sensed by the weight sensor 23 becomes the first upper difference. If the actual weight sensed by the weight sensor 23 is 15.26 tons, the first upper difference is 20 - 15.26 = 4.74 tons.

[0068] Step 4: Take the average of the first lower difference and the first upper difference. Since both the first lower difference and the first upper difference are obtained near the ideal state where the pin shaft 95 is easily detachable, that is, both the first lower difference and the first upper difference are the lifting forces when approaching the ideal state, and are located on both sides of this lifting force respectively. Therefore, taking the intermediate value of the two, that is, the average value, can roughly obtain the lifting force required when the pin shaft 95 reaches the ideal state of easy detachment, that is, (4.54 + 4.74) / 2 = 4.64t.

[0069] Step 5: Repeat the operations in Step 2 to Step 4 to obtain multiple such average values; then average the multiple average values to obtain the fixed difference, that is, a relatively accurate value of the required lifting force. After obtaining this fixed difference, when the same batch of hydraulic supports 9 are sent to the weighing platform 22 again, the lifting device 24 can directly lift the weight of this fixed difference, quickly making the pin shaft 95 to be disassembled reach the ideal state of easy detachment.

[0070] Preferably, during the pin removal operation of the pin removal device 25 in Step 2, the vibration generator 14 is used for auxiliary loosening. For example, when there is blockage such as coal scale and rust slag in the shaft hole and it is difficult to pull out the pin, after the impact body 256 impacts, the vibration generator 14 vibrates for a short time to promote the further falling out of the coal scale and rust slag, so as to further promote the rapid disassembly of the pin shaft 95.

[0071] Step 3: Clean each component of the hydraulic support 9 after pin removal. For the present embodiment provided with the flipping system 3, after flipping the top beam 91 and the shield beam 92, place them in the cleaning tank 41 for cleaning.

[0072] In addition, during the above disassembly and cleaning operation, after the next hydraulic support 9 vibrates in the loosening chamber 11 for the fixed time t, if the previous hydraulic support 9 is still performing Step 2, keep the next hydraulic support 9 in the loosening chamber 11 and keep the dust removal system 16 removing dust.

[0073] In this embodiment, dry vibration loosening is first performed, making the coal scale loose without dead ends. Subsequently, the precise control of the lifting force, as well as the falling of coal scale and rust slag during pin removal impact, are both made easier because of this. And the precise control of the lifting force can significantly reduce the extrusion effect on the pin shaft 95, and the easy falling out of coal scale and rust slag can significantly reduce the blocking effect of coal scale and rust slag. The disassembly of the pin shaft 95 is easier and faster. Coupled with the high-efficiency loosening effect of dry vibration loosening, the entire disassembly and cleaning process has low difficulty and high efficiency. In this embodiment, the use of manpower is reduced, the experience requirements are also reduced, and the manual labor intensity is significantly reduced.

[0074] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Hydraulic support disassembly and cleaning operation line, characterized in that: It includes a loose system, a disassembly system and a cleaning system arranged in sequence. There is a transfer mechanism for carrying the hydraulic support between the loose system and the disassembly system; the loose system includes a loose chamber that can accommodate the transfer mechanism and the hydraulic support. The transfer mechanism is provided with a vibrating table for fixing the hydraulic support. The vibrating table is provided with a support fixator and a vibration generator. There is a vibration buffer between the vibrating table and the transfer mechanism. The loose system is connected with a dust removal system; the disassembly system includes a disassembly frame. Inside the disassembly frame, there is a weighing platform that can carry the transfer mechanism. The weighing platform is connected with a weight sensor. Above the weighing platform on the disassembly frame, there is a lifting device. The lifting device is used to lift the components of the hydraulic support. By sensing the change of the total weight through the weight sensor, the precise control of the lifting degree of the lifting device is realized, so that the pins between the components on the hydraulic support quickly reach the ideal state of being easily disassembled; a pin removal device is installed on the disassembly frame; The pin removal device includes a support installed on the disassembly frame. The support is provided with a connecting pin body that can be connected to the outer end of the pin on the hydraulic support. The end of the connecting pin body far from the pin is connected with a pull pin seat through an elastic structure. A pull pin applicator that can pull the pull pin seat away from the connecting pin body is installed on the support. There is a clutch device between the force application end of the pull pin applicator and the pull pin seat. The pull pin seat is provided with a counter-collision body that crosses the connecting pin body and can contact the outer end face of the pin.

2. The hydraulic support disassembly and cleaning operation line according to claim 1, characterized in that: A position adjustment device is provided between the support and the disassembly frame.

3. The hydraulic support disassembly and cleaning production line according to claim 1, characterized in that: The lifting device includes a lifting seat. A lifting chain belt is installed on the lifting seat. Lifting hooks are installed on the lifting chain belt. A lifting applicator is provided between the upper end of the lifting chain belt and the lifting seat.

4. The hydraulic support disassembly, cleaning and assembly line according to claim 1, wherein: A flipping system is also provided between the disassembly system and the cleaning system. The transfer mechanism can transfer the hydraulic support to the cleaning system.

5. The hydraulic support disassembly and cleaning operation line according to claim 1, wherein: The cleaning system includes at least one cleaning pool. Ultrasonic generators are installed in the cleaning pool.

6. The hydraulic support disassembly and cleaning production line according to claim 5, characterized in that: The bottom pipeline of the cleaning pool is connected with a muddy water extraction device. The mud outlet end of the muddy water extraction device is connected with a muddy water separation device. The water outlet end of the muddy water separation device is connected with a clean water pool. A water body recycling device is provided between the clean water pool and the cleaning pool.

7. The hydraulic support disassembly and cleaning production line according to any one of claims 1 to 6, characterized in that: The disassembly and cleaning operation includes the following steps: Step 1: Place the hydraulic support on the vibrating table of the transfer mechanism and fix it with the support fixator; after the transfer mechanism transfers the hydraulic support into the loose chamber, turn on the dust removal system and the vibration generator, and loosen the coal scale on the hydraulic support through vibration; after vibrating for a fixed time t, stop the dust removal system and the vibration generator; Step 2: Move the transfer mechanism onto the weighing platform, and the weight sensor continuously senses the total weight on the weighing platform; lift the components of the hydraulic support that need to be lifted through the lifting device, and make the weight sensor sense that the total weight on the weighing platform decreases by a fixed difference, so that the pin to be disassembled reaches an ideal state for easy disassembly. Then, the pin removal device starts the pin removal operation; Step 3: Clean each component of the hydraulic support after pin removal separately; Among them, after the next hydraulic support vibrates in the loosening chamber for the fixed time t, if the previous hydraulic support is still performing Step 2, keep the next hydraulic support in the loosening chamber and keep the dust removal system performing dust removal.

8. The hydraulic support disassembly, cleaning and assembly line according to claim 7, characterized in that: The determination method of the fixed difference in Step 2 is as follows: First step: Determine an initial difference according to the weight of the component to be lifted; after the transfer mechanism carrying the hydraulic support moves onto the weighing platform, the lifting device lifts the component of the hydraulic support that needs to be lifted, so that the total weight sensed by the weight sensor decreases by the initial difference; Second step: According to the direction of the extrusion force on the pin to be disassembled at this time, lower or lift the lifted component in the direction opposite to the extrusion direction, and stop immediately after the pin to be disassembled crosses the ideal state for easy disassembly. At this time, the direction of the extrusion force on the pin to be disassembled is opposite to the direction when the initial difference is lifted, and the difference sensed by the weight sensor at this time becomes the first lower difference; Third step: Lift or lower the lifted component in the direction opposite to the extrusion direction at this time, and also stop immediately after the pin to be disassembled crosses the ideal state for easy disassembly. At this time, the direction of the extrusion force on the pin to be disassembled is the same as the direction when the initial difference is lifted, and the difference sensed by the weight sensor at this time becomes the first upper difference; Fourth step: Take the average value of the first lower difference and the first upper difference; Fifth step: Repeat the operations in the second step to the fourth step to obtain multiple average values; then average the multiple average values to obtain the fixed difference.

9. The hydraulic support disassembly and cleaning operation line according to claim 7, characterized in that: During the pin removal operation of the pin removal device in Step 2, use the vibration generator for auxiliary loosening.

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