CN212131255U - Forced oil injection lubricating system for open gear of coal mining machine walking box - Google Patents
Forced oil injection lubricating system for open gear of coal mining machine walking box Download PDFInfo
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- CN212131255U CN212131255U CN202020411451.5U CN202020411451U CN212131255U CN 212131255 U CN212131255 U CN 212131255U CN 202020411451 U CN202020411451 U CN 202020411451U CN 212131255 U CN212131255 U CN 212131255U
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Abstract
The utility model relates to a coal-winning machine walking case open gear forces oil spout lubricating system, including the cam, the spring reset's single action piston cylinder, there is the spring chamber of piston cylinder to be connected to nozzle device through the oil extraction pipeline, no spring chamber is through the oil inlet pipe connection lubricating oil source, the both sides cavity communicates with each other through the bypass pipeline, the cam is coaxial to be fixed on the driving wheel axle or the walking wheel axle of coal-winning machine walking case, the relative driving wheel axle of piston cylinder is arranged perpendicularly, the rim of cam keeps in contact with the tip of the piston rod that stretches out from no spring chamber, nozzle device sets up on the walking case box of coal-winning machine, and the nozzle is towards drive wheel and/or walking wheel, the oil extraction pipeline, be equipped with the oil extraction check valve on oil inlet pipeline and the bypass pipeline respectively. The utility model discloses can guarantee walking case open gear's lubricated state, reduce the noise when walking case moves by a wide margin, improve walking case open gear's life-span by a wide margin.
Description
Technical Field
The utility model relates to a force oil spout lubricating system, be particularly useful for to the open gear driven lubrication of shearer loader walking case, be particularly showing because of the dry friction that does not have lubrication or lubricated effect difference arouse, the solution effect of sound abnormal sound scheduling problem.
Background
The traction part of the roller coal mining machine transmits the output torque of the traction motor to the walking box through gear transmission. The walking box is an open transmission reduction box, only one-stage gear of the walking wheel assembly is arranged in some walking boxes of the coal mining machine, and two-stage or more than two-stage gear transmission systems are arranged in some walking boxes of the coal mining machine. The walking wheel assembly is the last gear train in the walking box transmission system and is an actuating mechanism for the traction and walking of the coal mining machine. The walking wheels on the walking wheel assemblies are meshed with pin rails on the scraper conveyor in a gear and rack mode to drive the coal mining machine to advance.
The gear transmission in the walking box is open transmission, the total power of the coal mining machine is small at the beginning of this century, the traction force is small, and the walking box can basically work in a dry friction state during the open gear transmission. In recent years, with the increase of the power of the coal mining machine (particularly the increase of the traction power), the traction force of the coal mining machine is greatly increased, and the problem of dry friction state of an open transmission gear train in a walking box is completely revealed. The main problems that arise are: the wheel teeth of each wheel are abnormally worn, and the wheel teeth generate harsh abnormal sound when being meshed, particularly when a coal mining machine cuts fault or partial hard rock. The direct source of abnormal noise is due to the dry friction of the gear drive of the traveling box and the dry friction of the guide shoes and the pin rows of the scraper conveyor. Even the gear train of the traveling box and the guide sliding shoe of some coal mining machines can be completely worn and failed in less than one month.
In recent years, in order to solve the problem, an oil dripping lubricating system is designed for an open transmission gear train of a walking box, and dry friction and abrasion are slowed down to a certain extent. However, the oil drop lubrication system in the industry at present mainly has the following three problems. Firstly, oil dripping lubrication depends on the gravity of oil drops of oil, so the oil tank must be designed right above a gear transmission system in a walking box, and the space right above the gear transmission system in the walking box is very limited, so that the volume of the oil tank of the system is very small, and is about two liters and three liters generally. Therefore, the oil in the small-volume oil tank can not be dripped in one production class generally, and the oil needs to be added for many times, which is very inconvenient. Secondly, the size of the oil dripping port of the oil tank is not easy to control, oil in the oil tank can quickly drip when the oil dripping port is large, and the oil dripping port is easy to block when the oil dripping port is small. Because the oil dripping port is arranged right below the oil tank, once the oil dripping port is blocked, the whole oil tank needs to be disassembled for processing, which is quite inconvenient, so that a plurality of users do not use the oil dripping port. Third, there are often times when the operator feels not good to use.
In order to solve the above problems, the industry has also continuously improved the control method of the oil dropping flow rate and speed of the oil dropping hole for oil dropping lubrication, but the improvement effect is not obvious.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a coal-winning machine walking case open gear forces oil spout lubricating system can avoid the people for cancellation lubrication, guarantees walking case open gear's lubricated state, reduces the noise when walking case moves by a wide margin, improves walking case open gear's life-span by a wide margin, has guaranteed the reliable operation and the stability of whole unit.
The utility model discloses a main technical scheme has:
a forced oil injection lubricating system for an open gear of a traveling box of a coal mining machine comprises a cam and a spring-reset single-acting piston cylinder, wherein a spring of the single-acting piston cylinder is positioned in a cavity of a cylinder barrel, a spring cavity is connected to a nozzle device through an oil discharge pipeline, a spring-free cavity is connected with a lubricating oil source through an oil inlet pipeline, the spring cavity is communicated with the spring-free cavity through a bypass pipeline, the cam is coaxially fixed on a driving wheel shaft of the traveling box of the coal mining machine or a shaft end of the traveling wheel shaft, the single-acting piston cylinder is vertically arranged relative to the driving wheel shaft, a rim of the cam is in contact with the end part of a piston rod extending out of the spring-free cavity, grease lubrication is adopted between the cam and the piston rod, when a convex arc section of the cam is in contact with the piston rod, the spring is compressed, when a flat section of the cam is in contact with the piston rod, and the oil injection port faces to a driving wheel and/or a traveling wheel in the traveling box, the oil discharge pipeline, the oil inlet pipeline and the bypass pipeline are respectively provided with an oil discharge one-way valve, an oil inlet one-way valve and a bypass one-way valve, wherein an inlet of the oil discharge one-way valve and an outlet of the bypass one-way valve are communicated with the spring cavity, and an outlet of the oil inlet one-way valve is communicated with the spring-free cavity.
The cam and the driving wheel shaft or the walking wheel shaft can be coaxially and fixedly connected through a spline or a pin.
One or more buffer adjusting pads which are overlapped with each other are preferably fixed at the end of the cylinder barrel in the spring-free cavity, and the piston rod penetrates through a through hole in the middle of the buffer adjusting pad.
The lubricating oil tank as a lubricating oil source can be installed on the body of the coal mining machine at any place except the inside of the traveling box.
The nozzle arrangement is preferably arranged directly above the drive wheels and/or directly above the road wheels.
The cam is preferably a multi-arc cam.
The forced oil injection lubricating system for the open gear of the coal mining machine walking box can further comprise a cam shaft, a rotary seal and a wear-resistant sleeve, one end of the cam shaft is coaxially fixed on the driving wheel shaft or the walking wheel shaft, the other end of the cam shaft penetrates through a bearing gland which is arranged at one end of the driving wheel shaft or the walking wheel shaft and is arranged on the walking box and extends to the outside of the walking box, the rotary seal is arranged between the cam shaft and the bearing gland, the cam shaft is separated from a bearing grease lubricating system in the walking box through the rotary seal, the part of the cam shaft which is arranged at the outer end of the bearing gland is sequentially sleeved with the wear-resistant sleeve and the cam, the cam and the cam shaft are circumferentially positioned through a key.
The piston cylinder with the single action can further comprise a guide sleeve, an outlet sleeve cup and a piston, wherein the guide sleeve is in threaded connection with one end of the cylinder barrel, which is not provided with a spring cavity, the piston rod penetrates through a center hole of the guide sleeve and is in sealed sliding connection with the guide sleeve, a dynamic seal, a guide belt and a dust ring are arranged on the hole wall of the center hole of the guide sleeve, the outlet sleeve cup is in threaded connection with one end of the cylinder barrel, which is provided with the spring cavity, an oil discharge channel is arranged on the outlet sleeve cup and is in sealed sliding connection with the piston and the cylinder barrel, and two ends of the spring are respectively connected to the piston and the outlet sleeve cup.
The utility model has the advantages that:
because the power of the cam is from the driving wheel or the travelling wheel of the travelling box of the coal mining machine, the driving wheel and the travelling wheel can rotate at a certain rotating speed as long as the coal mining machine travels, the oil injection lubrication system can be driven to perform forced injection lubrication on the open gears such as the straight driving wheel and the travelling wheel, and the dry friction operation of the open gear of the travelling box is avoided.
The lubricating oil tank can be arranged outside the traveling box, so that the problem that the internal space of the traveling box is small and only a small-capacity oil tank can be designed is solved, and the effect is particularly obvious for an ultrathin and thin coal seam coal mining machine. If the volume of the lubricating oil tank can reach more than 30 liters, the coal mining machine can continuously work for several shifts by adding once oil.
Because the oil discharged from the oil discharge pipeline has pressure, the possibility of blocking the nozzle of the nozzle device is reduced to the maximum extent.
The utility model discloses guaranteed walking case open gear's lubricated state, noise when can reducing walking case operation by a wide margin improves walking case open gear's life-span by a wide margin, has guaranteed the reliable operation and the stability of whole unit.
Drawings
FIG. 1 is a schematic diagram of the present invention;
fig. 2a is a schematic structural diagram of an embodiment of the present invention;
FIG. 2b is a view from the P direction of FIG. 2 a;
FIG. 3a is a schematic view of the installation structure of the cam;
FIG. 3b is a left side view of FIG. 3 a;
FIG. 4 is a schematic view of the spring of the single-acting piston cylinder in a compressed state;
fig. 5 is a schematic structural view of the single-acting piston cylinder with the spring in a reset state.
Reference numerals:
1. a cam; 2. a spring-return single-acting piston cylinder; 2-1, a spring; 2-2, a piston rod; 2-3, buffering the adjusting pad; 2-4. a cylinder barrel; 2-5, a guide sleeve; 2-6, an internal one-way oil return path; 2-7, an outlet sleeve cup; 2-8, a piston; 3. an oil discharge pipeline; 4. a nozzle device; 5. an oil inlet pipeline; 6. a bypass line; 7. a drive axle; 8. a camshaft; 9. a screw; 10. a gasket; 11. rotating and sealing; 12, wear-resistant sleeves; 13. a slotted nut; 14. a flat bond; 15. a cotter pin; 16. a stop valve; 17. a filter; 18. a shield.
Detailed Description
The utility model discloses a coal-winning machine walking case open gear forces oil spout lubricating system (be referred to for short oil spout lubricating system), as shown in fig. 1-5, single-action piston cylinder 2 including cam 1 and spring reset, spring 2-1 of single-action piston cylinder is located a cavity of cylinder 2-4, has the spring chamber to be connected to nozzle device 4 through oil drain pipeline 3, and no spring chamber is through advancing oil pipe way 5 and connecting the lubricating oil source, and there is the spring chamber to communicate with each other through the bypass pipeline 6 that is located outside the piston cylinder cavity with no spring chamber. The cam is coaxially fixed on a driving wheel shaft 7 of a walking box of the coal mining machine or the shaft end of the walking wheel shaft, and the embodiment shown in the attached drawing is arranged on the driving wheel shaft. The piston rod 2-2 of the single-acting piston cylinder is arranged perpendicularly relative to the drive wheel shaft, and the rim of the cam is in contact with the end of the piston rod that protrudes from the springless cavity. The spring is compressed when the convex arc section of the cam is in contact with the piston rod, and particularly, the compressed amount of the spring reaches the maximum when the highest part of the convex arc section of the cam is in contact with the piston rod; when the flat section of the cam is in contact with the piston rod, the spring is reset. The nozzle device is arranged on a walking box body of the coal mining machine, and an oil injection port faces towards a driving wheel and/or a walking wheel in the walking box. And the oil discharge pipeline, the oil inlet pipeline and the bypass pipeline are respectively provided with an oil discharge one-way valve, an oil inlet one-way valve and a bypass one-way valve, wherein an inlet of the oil discharge one-way valve and an outlet of the bypass one-way valve are communicated with the spring cavity, and an outlet of the oil inlet one-way valve is communicated with the spring-free cavity.
The part of the cam, which is in contact with the end of the piston rod, is lubricated by grease.
The utility model discloses a theory of operation is: the cam 1 is driven by a driving wheel shaft 7 or a walking wheel shaft of a walking box of the coal mining machine to synchronously rotate, when the part, which is in contact with the rod end of a piston rod of the piston cylinder, on the cam rotates from a flat section to a convex arc section, the piston rod moves towards the direction with a spring cavity, oil in the spring cavity is forcibly discharged to the nozzle device through an oil discharge pipeline and an oil discharge one-way valve on the oil discharge pipeline at a certain pressure, and the oil sprayed from the nozzle device is sprayed to the driving wheel and/or the walking wheel to lubricate the open gears. Meanwhile, the spring-free cavity absorbs oil from the lubricating oil source through the oil inlet pipeline and the oil inlet one-way valve on the oil inlet pipeline. Due to the arrangement of the bypass check valve, oil in the spring cavity cannot flow back to the spring-free cavity.
When the part of the cam, which is in contact with the rod end of the piston rod of the piston cylinder, rotates to the flat section from the convex arc section, the spring gradually resets to push the piston rod to return to the direction without the spring cavity, and in the process, due to the arrangement of the oil inlet check valve, oil in the spring cavity cannot flow back to a lubricating oil source; due to the arrangement of the bypass check valve, oil in the spring-free cavity can only be extruded into the spring cavity through the bypass pipeline and the bypass check valve on the bypass pipeline to supplement the oil in an equivalent manner, preparation is made for next oil injection, and the oil in the spring cavity cannot be reversely sucked back to the spring-free cavity.
And the lubricating oil can be periodically, continuously and equivalently supplemented from the lubricating oil source through the single-action piston cylinder as long as the driving wheel is in a normal working state, and is finally sprayed to the driving wheel and/or the traveling wheel through the nozzle device, so that the driving wheel and/or the traveling wheel are subjected to forced oil injection lubrication. The utility model discloses it is very obvious to the lubricated effect of coal-winning machine walking case open gear.
The cam and the driving wheel shaft or the walking wheel shaft can be coaxially and fixedly connected through a spline or a pin.
One or more buffer adjusting pads 2-3 which are overlapped with each other are preferably fixed at the end of the cylinder barrel in the spring-free cavity, and the piston rod penetrates through a through hole in the middle of the buffer adjusting pad. The oil discharge amount of each oil injection can be adjusted by adjusting the thickness and/or the number of the buffer adjusting pads.
The lubricating oil tank as a source of lubricating oil is mounted on the body of the coal mining machine, preferably in a place other than the inside of the traveling box of the coal mining machine, and may be hung on the outer wall of the casing of the traveling box, or installed inside the traction box, for example.
The cam is preferably a multi-arc cam, and the cam rotates for one circle and can push the piston rod to intermittently reciprocate for multiple times, so that the oil injection operation is correspondingly carried out for the same times. The specific multi-arc parameters of the multi-arc cam can be designed according to the transmission ratio of the traveling box driving wheel and the traveling wheel component, the number of teeth of the traveling wheel, the average belt load working traction speed of the coal mining machine and the like.
The nozzle device is preferably provided directly above the drive wheels and/or the road wheels, and is preferably located directly above the widthwise middle of the corresponding drive wheels or road wheels.
The oil injection lubrication system can be used for lubricating the open gears of the traveling box with a double-row gear structure and can also be used for lubricating the open gears of the traveling box with a single-row gear structure. The corresponding number of nozzle devices are arranged according to the different number of gears to be lubricated, and all the nozzle devices are connected with the oil discharge pipeline. In a similar way, the oil discharge pipe can be designed to be only used for lubricating one way of oil injection to the travelling wheels, and also can be designed to be used for lubricating two ways of oil injection to the travelling wheels and the driving wheels simultaneously.
A stop valve 16 is also installed at the outlet of the lubricating oil source to connect or disconnect the lubricating oil source. The outlet of the stop valve and the inlet of each nozzle device are respectively provided with a filter 17, so that the cleanness of lubricating oil in the system is ensured from the oil inlet and the oil outlet of the system.
A common shield 18 is provided outside the cam and the single-acting piston cylinder to protect the structure of each part of the system from damage caused by external impacts and the like.
As shown in fig. 3a and 3b, the specific structure related to the cam installation in this embodiment is: the camshaft 8 is coaxially fixed by means of a spigot at its right-hand shaft end to the shaft end of the drive wheel shaft 7 on the output side by means of a screw 9 and a washer 10. The left end of the camshaft 8 passes through the bearing gland and extends out of the walking box, and the camshaft is separated from a bearing grease lubrication system in the walking box through a rotary seal 11 on the bearing gland. The part of the camshaft at the outer end of the bearing gland is provided with a wear-resistant sleeve 12, a cam 1 and a slotted nut 13 in sequence in the axial direction. The cam 1 is positioned and fixed to the camshaft in the circumferential direction by a flat key 14. After the cam is installed in place, the slotted nut is connected to the cam shaft in a threaded mode, and the cam 1 is axially fastened and located. The cotter pin 15 is then used to traverse the camshaft 8 and to engage with the notches in the slotted nut 13 to prevent loosening. After the axial and circumferential positioning, the cam 1 will rotate synchronously with the driving wheel shaft.
As shown in figure 4, the single-acting piston cylinder in the embodiment mainly comprises a single-acting piston cylinder, a guide sleeve 2-5, a group of buffer adjusting pads 2-3, a cylinder barrel 2-4, a compression spring 2-1, an internal one-way oil return path 2-6, an outlet sleeve cup 2-7, a piston rod 2-2, a piston 2-8 with a seal and a guide belt and the like. The guide sleeve 2-5 is connected with one end of the cylinder barrel 2-4 without a spring cavity through threads, the piston rod 2-2 penetrates through a center hole of the guide sleeve, and the cam 1 drives the piston rod to slide in the center hole of the guide sleeve 2-5 in a sealing mode. And the hole wall of the central hole of the guide sleeve is provided with a dynamic seal, a guide belt and a dustproof ring. The outlet sleeve cup 2-7 is connected with one end of the cylinder barrel 2-4 with a spring through threads, and the central hole of the outlet sleeve cup is an oil discharge channel and an oil discharge connecting piece is connected with internal threads for connecting an oil discharge pipeline. Two ends of the compression spring are respectively connected to the piston and the outlet sleeve cup.
When the cam rotates from the flat section to the convex arc section, the piston 2-8 pushes the compression spring 2-1 to move and discharge pressure oil to the spring cavity, and because the oil of the internal one-way oil return path 2-6 can not flow from the spring cavity to the spring-free cavity, the oil can only be discharged through the outlet sleeve cup 2-7; when the cam rotates from the convex arc section to the flat section, the piston 2-8 moves towards the direction of the guide sleeve under the action of the elastic force of the compression spring 2-1 until the position of the buffer adjusting pad 2-3. Meanwhile, the oil inlet pipeline can only feed oil in a single direction, and the oil extruded from the part without the spring cavity can only return to the spring cavity through the internal one-way oil return channels 2-6. In the process, due to the action of the one-way valve on the oil discharge pipeline, oil in the oil discharge pipeline cannot be sucked back to the spring cavity along with the return of the piston. When the cam rotates continuously along with the driving wheel shaft of the coal mining machine, oil is continuously sucked from the lubricating oil tank and continuously discharged from the oil discharge pipeline under the action of the single-action piston oil cylinder reset by the spring.
The internal one-way oil return path 2-6 is the bypass path 6.
The cylinder barrel 2-4 can be fixed on the pressure bearing cover of the driving wheel shaft of the walking box by screws and the like.
The utility model discloses guaranteed walking case open gear's lubricated state, noise when can reducing walking case operation by a wide margin improves walking case open gear's life-span by a wide margin, has guaranteed the reliable operation and the stability of whole unit.
Claims (10)
1. The utility model provides a coal-winning machine walking case open gear forces oil spout lubricating system which characterized in that: the single-acting piston cylinder comprises a cam and a spring-reset single-acting piston cylinder, wherein a spring of the single-acting piston cylinder is positioned in a cavity of a cylinder barrel, a spring cavity is connected to a nozzle device through an oil discharge pipeline, a spring-free cavity is connected with a lubricating oil source through an oil inlet pipeline, the spring cavity is communicated with the spring-free cavity through a bypass pipeline, the cam is coaxially fixed on a driving wheel shaft of a coal mining machine walking box or the shaft end of the walking wheel shaft, the single-acting piston cylinder is vertically arranged relative to the driving wheel shaft, the rim of the cam is in contact with the end part of a piston rod extending out of the spring-free cavity, grease lubrication is adopted between the cam and the driving wheel shaft, when a convex arc section of the cam is in contact with the piston rod, the spring is compressed, when a flat section of the cam is in contact with the piston rod, the spring is reset, the nozzle device is arranged on a box body of, and the oil discharge pipeline, the oil inlet pipeline and the bypass pipeline are respectively provided with an oil discharge one-way valve, an oil inlet one-way valve and a bypass one-way valve, wherein an inlet of the oil discharge one-way valve and an outlet of the bypass one-way valve are communicated with the spring cavity, and an outlet of the oil inlet one-way valve is communicated with the spring-free cavity.
2. The forced oil injection lubrication system for the open gear of the traveling box of the coal mining machine as claimed in claim 1, wherein: the cam is coaxially and fixedly connected with the driving wheel shaft or the walking wheel shaft through a spline or a pin.
3. The forced oil injection lubrication system for the open gear of the traveling box of the coal mining machine as claimed in claim 1, wherein: one or more mutually-overlapped buffering adjusting pads are fixed at the end of the cylinder barrel in the spring-free cavity, and the piston rod penetrates through a through hole in the middle of the buffering adjusting pad.
4. The forced oil injection lubrication system for the open gear of the traveling box of the coal mining machine as claimed in claim 3, wherein: the lubricating oil tank as a lubricating oil source is arranged on the body of the coal mining machine and outside the inner part of the traveling box.
5. The forced oil injection lubrication system for the open gear of the traveling box of the coal mining machine as claimed in claim 3, wherein: the nozzle device is arranged right above the driving wheel and/or the travelling wheel.
6. The forced oil injection lubrication system for the open gear of the traveling box of the coal mining machine as claimed in claim 3, wherein: and a stop valve is arranged at the outlet of the lubricating oil source, and filters are respectively arranged at the outlet of the stop valve and the inlet of each nozzle device.
7. The forced oil injection lubrication system for the open gear of the traveling box of the coal mining machine as claimed in claim 3, wherein: and a shared protective cover is arranged outside the cam and the single-acting piston oil cylinder.
8. The forced oil injection lubrication system for the open gear of the walking box of the coal mining machine as claimed in claim 1, 2, 3, 4, 5, 6 or 7, wherein: the cam is a multi-arc cam.
9. The forced oil injection lubrication system for the open gear of the traveling box of the coal mining machine as claimed in claim 8, wherein: the wear-resistant mechanism is characterized by further comprising a cam shaft, a rotary seal and a wear-resistant sleeve, wherein one end of the cam shaft is coaxially fixed on the driving wheel shaft or the walking wheel shaft, the other end of the cam shaft penetrates through a bearing gland on the walking box and located at one end of the driving wheel shaft or the walking wheel shaft and extends to the outside of the walking box, the rotary seal is located between the cam shaft and the bearing gland, the cam shaft is separated from a bearing grease lubricating system inside the walking box through the rotary seal, the part, located at the outer end of the bearing gland, of the cam shaft is sequentially sleeved with the wear-resistant sleeve and the cam, the cam shaft and the cam shaft are circumferentially located through a key, and are.
10. The forced oil injection lubrication system for the open gear of the traveling box of the coal mining machine as claimed in claim 8, wherein: the piston cylinder comprises a cylinder barrel, a piston rod, an oil discharge channel, an outlet sleeve cup and a piston, wherein the piston rod is fixedly connected with the piston rod in a coaxial mode, the piston rod is connected with the piston rod in a sliding mode, the piston rod is connected with one end, without a spring cavity, of the cylinder barrel in a threaded mode, the piston rod penetrates through a center hole of the guide sleeve and is connected with the guide sleeve in a sliding mode in a sealing mode, a movable seal, a guide belt and a dust ring are arranged on the hole wall of the center hole of the guide sleeve, the outlet sleeve cup is connected with one end, with the spring cavity, of the cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020411451.5U CN212131255U (en) | 2020-03-27 | 2020-03-27 | Forced oil injection lubricating system for open gear of coal mining machine walking box |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020411451.5U CN212131255U (en) | 2020-03-27 | 2020-03-27 | Forced oil injection lubricating system for open gear of coal mining machine walking box |
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| CN212131255U true CN212131255U (en) | 2020-12-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113617955A (en) * | 2021-08-02 | 2021-11-09 | 浙江金马逊机械有限公司 | Pipe bending equipment and automatic material conveying and transferring device thereof |
| CN114946535A (en) * | 2022-06-27 | 2022-08-30 | 龙泉市康源生物科技有限公司 | Glossy ganoderma liquid spawn cultivates inoculation integration equipment |
| CN115773349A (en) * | 2023-02-13 | 2023-03-10 | 西安赫元机械制造有限责任公司 | Self-lubricating duplex rack wheel set for coal mining machine |
| CN117685346A (en) * | 2024-02-04 | 2024-03-12 | 成都理工大学 | Automatic lubricating device for gear rack system |
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2020
- 2020-03-27 CN CN202020411451.5U patent/CN212131255U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113617955A (en) * | 2021-08-02 | 2021-11-09 | 浙江金马逊机械有限公司 | Pipe bending equipment and automatic material conveying and transferring device thereof |
| CN113617955B (en) * | 2021-08-02 | 2023-01-10 | 浙江金马逊智能制造股份有限公司 | Pipe bending equipment and automatic material conveying and transferring device thereof |
| CN114946535A (en) * | 2022-06-27 | 2022-08-30 | 龙泉市康源生物科技有限公司 | Glossy ganoderma liquid spawn cultivates inoculation integration equipment |
| CN114946535B (en) * | 2022-06-27 | 2023-08-01 | 龙泉市康源生物科技有限公司 | Glossy ganoderma liquid strain cultivates inoculation integration equipment |
| CN115773349A (en) * | 2023-02-13 | 2023-03-10 | 西安赫元机械制造有限责任公司 | Self-lubricating duplex rack wheel set for coal mining machine |
| CN115773349B (en) * | 2023-02-13 | 2023-04-18 | 西安赫元机械制造有限责任公司 | Self-lubricating duplex rack wheel set for coal mining machine |
| CN117685346A (en) * | 2024-02-04 | 2024-03-12 | 成都理工大学 | Automatic lubricating device for gear rack system |
| CN117685346B (en) * | 2024-02-04 | 2024-04-09 | 成都理工大学 | Automatic lubricating device for gear rack system |
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