Mining hydraulic oil cylinder

Abstract

The utility model discloses a mining hydraulic oil cylinder which comprises a cylinder body, a cylinder head and a piston rod are installed on the cylinder body, a jacking block is integrally formed on the piston rod, the mining hydraulic oil cylinder further comprises a protection assembly, the protection assembly comprises a plurality of first box bodies and a plurality of second box bodies, the first box bodies are fixedly connected to the cylinder head, and the second box bodies are fixedly connected to the cylinder head. The second box body is fixedly connected to the jacking block, a reel device is installed in the first box body, a protective net is wound on the reel device, a first opening is formed in a lower panel of the first box body, and the protective net penetrates through the first opening in the first box body and then is installed on the second box body. Compared with the prior art, the mining hydraulic oil cylinder is convenient to use in mining operation, the amount of dust adhered to the piston rod can be reduced, the impact force of broken ore which is fallen away can be effectively reduced, and the service life of the mining hydraulic oil cylinder can be effectively prolonged in a severe environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic cylinders, and in particular relates to a hydraulic cylinder for mining. Background Art

[0002] Hydraulic cylinders are widely used in the mining field. Most of the existing hydraulic cylinders do not have protection for the piston rod. After the cylinder is filled with liquid, the piston rod extends out of the cylinder and is directly exposed to the air.

[0003] During mining operations, a large amount of dust will be generated after the ore is broken under force. A large amount of dust will adhere to the piston rod of the hydraulic cylinder and enter the interior of the cylinder body along with the reciprocating motion of the piston rod, reducing the service life of the hydraulic cylinder. In addition, after the ore is broken under force, some broken ore will also fly away. The broken ore will hit the piston rod from time to time, which may damage the piston rod and cause damage to the hydraulic cylinder.

[0004] Therefore, in view of the above-mentioned technical problems, it is necessary to provide a mining hydraulic cylinder.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a mining hydraulic cylinder, which can be used to solve the above problems.

[0007] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a mining hydraulic cylinder, including a cylinder body, a cylinder head and a piston rod are installed on the cylinder body, a lifting block is integrally formed on the piston rod, and also includes a protective assembly, the protective assembly includes a plurality of first box bodies and a plurality of second box bodies, the first box body is fixedly connected to the cylinder head, the second box body is fixedly connected to the lifting block, a reel is installed on the first box body, a protective net is wound on the reel, a first opening is opened on the lower panel of the first box body, and the protective net is installed on the second box body after passing through the first opening on the first box body.

[0008] In one or more embodiments of the present invention, a second opening is formed on the second box body, and the second opening penetrates through the upper and lower cover plates of the second box body.

[0009] In one or more embodiments of the present invention, the protective net passes through the second opening on the second box body, and a baffle is fixedly connected to the protective net, and the baffle is movably connected to the lower panel of the second box body.

[0010] In one or more embodiments of the present invention, the baffle is made of magnetic material, and the baffle is magnetically attracted to the lower panel of the second box body.

[0011] In one or more embodiments of the present invention, a fixing plate is fixedly connected to the upper panel of the second box body, the fixing plates are a pair, and a pressing plate is fixedly connected between the pair of fixing plates.

[0012] In one or more embodiments of the present invention, a third opening is formed on the pressing plate, and a plug-in block is plugged into the third opening on the pressing plate.

[0013] In one or more embodiments of the present invention, a scraper is fixedly connected to one end surface of the plug-in block, and the scraper is in contact with the protective net.

[0014] In one or more embodiments of the present invention, a through hole is formed on the plug-in block, a plug pin is inserted into the through hole on the plug-in block, and the plug pin passes through the through hole on the plug-in block.

[0015] In one or more embodiments of the present invention, a positioning hole is provided on the upper panel of the second box body, and the positioning hole matches the latch.

[0016] In one or more embodiments of the present invention, a sliding groove is provided on the side wall of the second box body, and a drawer is slidably connected in the sliding groove.

[0017] Compared with the prior art, the mining hydraulic cylinder of the utility model is easy to use in mining operations, can reduce the amount of dust adhering to the piston rod, and can effectively reduce the impact force of the broken ore that is blown away, and can effectively extend the service life of the mining hydraulic cylinder in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art description. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a first structural schematic diagram of a mining hydraulic cylinder in one embodiment of the utility model;

[0020] Figure 2 This is a second structural schematic diagram of a mining hydraulic cylinder in one embodiment of the utility model;

[0021] Figure 3This is a first structural schematic diagram of a protection assembly of a mining hydraulic cylinder in one embodiment of the utility model;

[0022] Figure 4 This is a second structural schematic diagram of a protection assembly of a mining hydraulic cylinder in one embodiment of the utility model;

[0023] Figure 5 for Figure 4 The structural diagram at A in the middle;

[0024] Figure 6 This is a third structural schematic diagram of a protective assembly of a mining hydraulic cylinder in one embodiment of the utility model;

[0025] Figure 7 for Figure 6 Schematic diagram of the structure at B in the figure.

[0026] Description of main reference numerals:

[0027] 1. Cylinder body; 11. End cover; 12. Cylinder head; 13. Piston rod; 14. Lifting block; 2. First box body; 201. First opening; 21. Reel; 211. Protective net; 212. Baffle; 3. Second box body; 301. Second opening; 302. Positioning hole; 303. Slide; 31. Fixing plate; 32. Pressing plate; 321. Third opening; 33. Plug block; 34. Latch; 35. Scraper; 36. Drawer; 37. Handle. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] like Figure 1 As shown, a mining hydraulic oil cylinder in one embodiment of the utility model comprises a cylinder body 1, an end cover 11 is installed on the cylinder body 1, hydraulic oil is injected into the cylinder body 1 from the end cover 11, and a piston rod 13 in the cylinder body 1 is pushed out. In order to seal the hydraulic oil in the cylinder body 1, a cylinder head 12 is provided on one end of the cylinder body 1 close to the piston rod 13, and a lifting block 14 is integrally formed on one end of the piston rod 13 away from the cylinder body 1, and a bolt hole is opened on the lifting block 14 for connecting the mining hydraulic oil cylinder to the machine equipment.

[0030] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, a protection assembly is installed on the mining hydraulic cylinder, and the protection assembly includes four first box bodies 2 and four second box bodies 3. The four first box bodies 2 are welded to the four side walls of the cylinder head 12, and the four second box bodies 3 are welded to the four side walls of the lifting block 14. The first box body 2 matches the second box body 3.

[0031] A reel 21 is installed in the first box body 2, and a protective net 211 is wound on the reel 21. A first opening 201 is opened on the lower panel of the first box body 2. A second opening 301 is opened on the second box body 3, and the second opening 301 passes through the upper and lower covers of the second box body 3.

[0032] Specifically, when one end of the protective net 211 is pulled, the reel 21 rotates after receiving the pulling force, releasing the protective net 211 wound on the reel 21. The protective net 211 passes through the first opening 201 on the first box body 2 and the second opening 301 on the second box body 3 and is bonded to the lower cover plate of the second box body 3. When the piston rod 13 reciprocates, the protective net 211 can shrink and change along with the length of the piston rod 13 extending from the cylinder body 1, thereby protecting the piston rod 13. The four protective nets 211 wrap the piston rod 13, reducing the contact between dust and the piston rod 13, and also reducing the impact force of the crushed ore on the piston rod 13.

[0033] Furthermore, a stop bar 212 is sewn on one end of the protective net 211 that passes through the second opening 301. The stop bar 212 is wider than the second opening 301. When the protective net 211 contracts under the retraction force of the reel 21, the stop bar 212 is wider than the second opening 301. When the protective net 211 contracts, the lower panel of the second box body 3 blocks the stop bar 212, so that the protective net 211 pulled out to the lower panel of the second box body 3 cannot contract, and can continue to protect the piston rod 13. Compared with bonding the protective net 211 to the lower cover of the second box body 3, the sewn stop bar 212 is more secure.

[0034] Preferably, the baffle 212 is made of magnetic material, and the baffle 212 is magnetically attracted to the lower panel of the second box body 3. That is, the baffle 212 is adsorbed on the lower panel of the second box body 3 by magnetic attraction, is not affected by its own weight, does not cause additional force to the reel 21, and can extend the service life of the reel 21.

[0035] like Figures 3 to 7As shown, a fixing plate 31 is welded on the upper plate of the second box body 3, and the fixing plates 31 are a pair. A pressing plate 32 is welded between the pair of fixing plates 31, and the two ends of the pressing plate 32 are respectively welded to the opposite side walls of the fixing plate 31. A third opening 321 is opened on the pressing plate 32, and a plug-in block 33 is inserted into the third opening 321 on the pressing plate 32. A scraper 35 is welded on one end surface of the plug-in block 33, and the scraper 35 contacts the protective net 211.

[0036] Specifically, when there is a lot of dust adhering to the protective net 211, the blocking bar 212 is pulled downward, causing the protective net 211 to be continuously pulled out from the reel 21. Because the scraper 35 is in contact with the protective net 211, the scraper 35 can scrape off the dust adhering to the protective net 211, thereby preventing the dust-proof effect of the protective net 211 from being affected due to excessive dust on the protective net 211.

[0037] It is worth noting that the scraped dust will fly, and the flying dust will be blocked by the protective net 211 continuously pulled out from the reel 21, and will not adhere to the piston rod 13, but will cause damage to the workers' bodies after being inhaled.

[0038] like Figure 4 , Figure 6 and Figure 7 As shown, in order to collect the dust on the protective net 211 , a slide groove 303 is opened on the side wall of the second box body 3 , and a drawer 36 is slidably connected in the slide groove 303 , and the rear panel of the drawer 36 is lower than the upper panel of the second box body 3 .

[0039] Specifically, when cleaning the dust on the protective net 211, first pull the plug block 33 outward to separate the scraper 35 from the protective net 211, pull the protective net 211 with dust adhered to it downward to the bottom of the lower panel of the second box body 3, then push the plug block 33 inward to make the scraper 35 fit on the protective net 211, and finally release the stop bar 212. Under the retraction force of the reel 21, the protective net 211 moves in the direction of the reel 21, and the scraper 35 scrapes the dust on the protective net 211 and drops it into the drawer 36. When the dust in the drawer 36 is full, pinch the handle 37, pull the drawer 36 out of the slide slot 303, and pour the dust into the trash can.

[0040] like Figures 4 to 7 As shown, the plug block 33 is provided with a through hole, a plug pin 34 is inserted into the through hole of the plug block 33, and the plug pin 34 passes through the through hole of the plug block 33. The surface of the plug pin 34 is wrapped with a layer of rubber, and the plug pin 34 is interference fit with the through hole of the plug block 33. A positioning hole 302 is provided on the upper panel of the second box body 3, and the positioning hole 302 matches the plug pin 34.

[0041] Specifically, when cleaning the dust on the protective net 211, push the plug block 33 in the direction of the protective net 211. When the through hole on the plug block 33 coincides with the positioning hole 302 on the second box body 3, insert the pin 34 into the positioning hole 302 to limit the plug block 33. At this time, the scraper 35 just connects with the protective net 211 and applies a proper pressure to the protective net 211, which can clean the dust on the protective net 211 more cleanly. At the same time, the pressure plate 32 presses on the plug block 33, and the pressure plate 32 applies downward pressure to the plug block 33 to ensure that the scraper 35 welded at the end of the plug block 33 is always attached to the surface of the protective net 211 to ensure the cleaning effect.

[0042] It is worth noting that the mining hydraulic cylinder has different working postures when working. When the mining hydraulic cylinder is parallel to the ground, the drawer 36 in the chute 303 in the parallel position will fall under the action of gravity. In order to fix the drawer 36, when the mining hydraulic cylinder is working, the plug block 33 is pulled to make the scraper 35 fit on the side wall of the pressure plate 32, and then the pin 34 is inserted into the through hole on the plug block 33. The pin 34 just abuts against the front panel of the drawer 36. The scraper 35 and the pin 34 cooperate to clamp the drawer 36 in the chute 303 to prevent the drawer 36 from falling under the action of gravity.

[0043] When in use, the protective net 211 is pulled to make the protective net 211 pass through the second opening 301 on the second box body 3. After the protective net 211 passes through the second opening 301 on the second box body 3, the blocking bar 212 is sewed at the end of the protective net 211. The blocking bar 212 is adsorbed on the lower panel of the second box body 3. The four protective nets 211 wrap the piston rod 13, effectively reducing the amount of dust adhering to the piston rod 13.

[0044] After long-term use, when there is too much dust on the protective net 211 and the dust-proof effect is affected, pull the baffle 212 to move the protective net 211 downward. After the protective net 211 with dust attached is pulled to the lower panel of the second box body 3, push the plug block 33, and insert the pin 34 into the positioning hole 302 on the second box body 3. The scraper 35 will contact the protective net 211, release the baffle 212, and under the action of the retraction force of the reel 21, the protective net 211 moves upward, and the scraper 35 can scrape the dust on the protective net 211 into the drawer 36.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mining hydraulic cylinder, comprising a cylinder body, a cylinder head and a piston rod are mounted on the cylinder body, and a lifting block is integrally formed on the piston rod, characterized in that: It also includes a protection component, which includes a plurality of first box bodies and a plurality of second box bodies, the first box bodies are fixedly connected to the cylinder head, the second box bodies are fixedly connected to the lifting block, a reel is installed in the first box body, a protection net is wound on the reel, a first opening is opened on the lower panel of the first box body, and the protection net is installed on the second box body after passing through the first opening on the first box body.

2. A mining hydraulic cylinder according to claim 1, characterized in that: The second box body is provided with a second opening, and the second opening penetrates the upper and lower cover plates of the second box body.

3. A mining hydraulic cylinder according to claim 2, characterized in that: The protection net passes through the second opening on the second box body, and a baffle is fixedly connected to the protection net, and the baffle is movably connected to the lower panel of the second box body.

4. A mining hydraulic cylinder according to claim 3, characterized in that: The baffle is made of magnetic material and is magnetically attracted to the lower panel of the second box body.

5. A mining hydraulic cylinder according to claim 2, characterized in that: A fixing plate is fixedly connected to the upper panel of the second box body, the fixing plates are a pair, and a pressing plate is fixedly connected between the pair of fixing plates.

6. A mining hydraulic cylinder according to claim 5, characterized in that: The pressing plate is provided with a third opening, and a plug-in block is plugged into the third opening on the pressing plate.

7. A mining hydraulic cylinder according to claim 6, characterized in that: A scraper is fixedly connected to one end surface of the plug-in block, and the scraper is in contact with the protective net.

8. A mining hydraulic cylinder according to claim 7, characterized in that: The plug-in block is provided with a through hole, a plug-in pin is plugged into the through hole on the plug-in block, and the plug-in pin passes through the through hole on the plug-in block.

9. A mining hydraulic cylinder according to claim 8, characterized in that: A positioning hole is provided on the upper panel of the second box body, and the positioning hole matches the latch.

10. A mining hydraulic cylinder according to claim 9, characterized in that: A slide groove is provided on the side wall of the second box body, and a drawer is slidably connected in the slide groove.

Images