CN209977149U - Damping device for coal mining machine - Google Patents
Damping device for coal mining machine Download PDFInfo
- Publication number
- CN209977149U CN209977149U CN201920680056.4U CN201920680056U CN209977149U CN 209977149 U CN209977149 U CN 209977149U CN 201920680056 U CN201920680056 U CN 201920680056U CN 209977149 U CN209977149 U CN 209977149U
- Authority
- CN
- China
- Prior art keywords
- coal mining
- mining machine
- fixing plate
- damping
- buffer spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a damping device for a coal mining machine, which belongs to the field of coal mining equipment and comprises a base shell with a circular opening at the top, a shock absorption device is arranged in the cavity of the base shell, the shock absorption device comprises an upper fixed plate and a lower fixed plate, connect the upper connecting sleeve respectively in the position at four angles of upper fixed plate, the lower connecting sleeve is connected respectively in the position at four angles of lower fixed plate, four upper connecting sleeves correspond the suit and are in four telescopic outside upsides, four lower connecting sleeves correspond the suit and are in four telescopic outside downsides, every telescopic top is connected with the one end of last buffer spring, the last groove connection that the other end of going up buffer spring and base housing top were seted up, every telescopic bottom is connected with buffer spring's one end down, lower buffer spring's the other end is connected with the lower groove of base housing bottom seting up, be connected with at least two sets of damper between upper fixed plate and lower fixed plate. Realize the shock attenuation to the coal-winning machine through multiple shock attenuation component, have the effectual advantage of shock attenuation.
Description
Technical Field
The utility model belongs to the technical field of coal mine equipment, specific damping device for coal cutter that says so.
Background
The coal mining machine is one of important equipment for realizing mechanization and modernization of coal mine production, the mechanical coal mining can reduce physical labor, improve safety and achieve the purposes of high yield, high efficiency and low consumption, when the coal mining machine cuts coal underground, particularly cuts coal or rocks with high coal hardness, the coal mining machine can generate great vibration, the vibration force is mainly transmitted to a rocker arm by a coal mining disc of the coal mining machine, the rocker arm is hinged with the machine body so as to transmit the vibration to the whole machine, and if the vibration is too large when the coal mining machine works underground, the service life of a gear and a bearing of a mechanical part can be influenced, and the anti-loosening performance of an electric element in the connection of the whole machine and an electric cabinet can be influenced.
In order to realize the shock absorption of the coal mining machine, a shock absorption base is generally arranged at the lower end of a supporting leg of the coal mining machine; traditional vibration damping mount who is applied to coal-winning machine includes two backup pads and is located and is provided with spring apparatus between two backup pads, however when the vibration amplitude is great, causes damping device's damage easily, and only carries out the shock attenuation in a position usually, has perhaps put a vibration damping apparatus, and the shock attenuation effect is not obvious to there is the poor shortcoming of shock attenuation effect.
Disclosure of Invention
In order to solve the defects in the prior art, the purpose of the utility model is to provide a damping device for a coal mining machine. The utility model discloses a through the setting of upper buffer spring, lower buffer spring, the shock attenuation gasbag and the damping spring in at least two sets of shock attenuation subassemblies, when the supporting legs in the coal-winning machine moves down, upper buffer spring, lower buffer spring can realize the cushioning effect, and drive upper adapter sleeve and lower adapter sleeve and move down in the sleeve, the shock attenuation gasbag in at least two sets of shock attenuation subassemblies can realize the shock attenuation to the coal-winning machine; when the supporting legs in the coal mining machine drive the upper connecting sleeve and the lower connecting sleeve to move upwards in the sleeve, the damping air bags and the damping springs in at least two groups of damping assemblies can realize damping on the coal mining machine, so that the coal mining machine can be damped, and the coal mining machine has the advantage of good damping effect.
The utility model provides a technical scheme that its technical problem adopted does: the utility model provides a damping device for a coal cutter, which comprises a base shell with a circular opening at the top, wherein the damping device is arranged in a cavity of the base shell, the damping device comprises an upper fixing plate and a lower fixing plate positioned below the upper fixing plate, upper connecting sleeves are respectively connected at the positions of four corners of the upper fixing plate, lower connecting sleeves are respectively connected at the positions of four corners of the lower fixing plate, four upper connecting sleeves are correspondingly sleeved at the upper sides of four sleeves, four lower connecting sleeves are correspondingly sleeved at the lower sides of the four sleeves, the top of each sleeve is connected with one end of an upper buffer spring, the other end of the upper buffer spring is connected with an upper groove arranged at the top of the base shell, the bottom of each sleeve is connected with one end of a lower buffer spring, the other end of the lower buffer spring is connected with a lower groove arranged at the bottom of, at least two groups of damping components are connected between the upper fixing plate and the lower fixing plate; and a coal mining machine supporting foot is fixedly arranged at the center position above the upper fixing plate, and the upper end of the coal mining machine supporting foot passes through the round opening of the base shell and then is connected with a coal mining machine.
The working principle is as follows: the coal mining machine is arranged on the damping device of the utility model through the supporting legs of the coal mining machine, when the coal mining machine moves, the coal mining machine generates upward or downward acting force, when the coal mining machine moves downward, the upper buffer spring stretches, the lower buffer spring compresses, and when the upper connecting sleeve and the lower connecting sleeve are driven to move downward in the sleeve, the damping air bags in at least two groups of damping components can realize damping on the coal mining machine; when the coal mining machine moves upwards, the lower buffer spring is stretched, the upper buffer spring is compressed, and the upper connecting sleeve and the lower connecting sleeve are driven to move upwards in the sleeve, so that the damping air bags in at least two groups of damping assemblies can realize damping on the coal mining machine; when the coal mining machine stops moving, the upper buffer spring, the lower buffer spring and the shock absorption assembly rebound to the original positions.
Preferably, the damping assembly comprises a damping airbag, the upper end of the damping airbag is connected with the lower end of an upper connecting seat, the lower end of the damping airbag is connected with the upper end of a lower connecting seat, the upper end of the upper connecting seat is hinged with the lower ends of two upper connecting rods, the upper ends of the two upper connecting rods are hinged with the bottom of an upper fixing plate respectively, and the two upper connecting rods and the upper fixing plate enclose a triangle; the lower end of the lower connecting seat is hinged to the upper ends of the two lower connecting rods, the lower ends of the two lower connecting rods are hinged to the top of the lower fixing plate respectively, and the two lower connecting rods and the lower fixing plate are enclosed to form a triangle.
The utility model discloses replaced the shock attenuation gasbag with the spring among the shock-absorbing component, the gasbag shock attenuation is an inflatable type damping device, is the vibrations that utilize the atmospheric pressure resistance to prevent the coal-winning machine that shakes, and the shock attenuation gasbag is better than spring shock attenuation's stability, and the shock attenuation is effectual. And the utility model discloses two go up the connecting rod and enclose into triangle-shaped and two lower connecting rods and bottom plate with the upper fixed plate enclose into triangle-shaped, triangle-shaped's setting can increase the stability of connecting, and then increases the stability of shock attenuation effect.
Preferably, the shock-absorbing air bag comprises at least two oblate air bags communicated with each other, and the at least two oblate air bags are inflated.
Preferably, at least two groups of shock absorption assemblies connected between the upper fixing plate and the lower fixing plate are stressed in the same way when in a static state. The balance and the uniformity of shock absorption during the movement of the coal mining machine are improved.
Preferably, a circle of reinforcing ribs are welded on the periphery of the connection between the supporting legs of the coal mining machine and the upper fixing plate. The firmness of connection between the supporting legs of the coal mining machine and the upper fixing plate is improved.
Preferably, a rubber ring is arranged between the supporting legs of the coal mining machine and the round opening of the base shell, a groove for placing the base shell is formed in the outer ring of the rubber ring, and the inner ring of the rubber ring is in contact with the supporting legs of the coal mining machine. The friction between the coal mining machine and the base shell during movement is reduced, and the coal mining machine and the base shell are protected.
Preferably, the central position of the bottom of the lower fixing plate is connected with one end of a damping spring, and the other end of the damping spring is connected with the bottom surface of the base shell. The added damping spring has an auxiliary effect on the damping of the coal mining machine.
Preferably, the inner diameter of the upper connecting sleeve is 2-5mm larger than the outer diameter of the sleeve.
Preferably, the inner diameter of the lower connecting sleeve is 2-5mm larger than the outer diameter of the sleeve.
Preferably, the upper groove and the lower groove have the same groove depth. And the depth of the groove is 1/3 the length of the rest state of the upper buffer spring or the lower buffer spring.
Compared with the prior art, the utility model the following advantage has:
(1) the utility model discloses a through the setting of upper buffer spring, lower buffer spring, the shock attenuation gasbag and the damping spring in at least two sets of shock attenuation subassemblies, when the supporting legs in the coal-winning machine moves down, upper buffer spring, lower buffer spring can realize the cushioning effect, and drive upper adapter sleeve and lower adapter sleeve and move down in the sleeve, the shock attenuation gasbag in at least two sets of shock attenuation subassemblies can realize the shock attenuation to the coal-winning machine; when the supporting legs in the coal mining machine drive the upper connecting sleeve and the lower connecting sleeve to move upwards in the sleeve, the damping air bags and the damping springs in at least two groups of damping assemblies can realize damping on the coal mining machine, so that the coal mining machine can be damped, and the coal mining machine has the advantage of good damping effect.
(2) The utility model discloses two go up the connecting rod and enclose into triangle-shaped and two lower connecting rods and bottom plate with the upper fixed plate enclose into triangle-shaped, triangle-shaped's setting can increase the stability of connecting, and then increases the stability of shock attenuation effect.
(3) The utility model discloses at least two sets of damper assembly who is connected between upper fixed plate and the bottom plate atress when being in quiescent condition is unanimous, equilibrium and absorbing homogeneity when having increased the coal-winning machine motion.
(4) The utility model discloses the welding has the round strengthening rib in the periphery that coal-winning machine supporting legs and upper fixed plate are connected, has increased the fastness of being connected between coal-winning machine supporting legs and the upper fixed plate.
(5) The utility model discloses replaced the shock attenuation gasbag with the spring among the shock-absorbing component, the gasbag shock attenuation is an inflatable type damping device, is the vibrations that utilize the atmospheric pressure resistance to prevent the coal-winning machine that shakes, and the shock attenuation gasbag is better than spring shock attenuation's stability, and the shock attenuation is effectual.
(6) The utility model discloses set up the rubber circle between base shell and coal-winning machine supporting legs, when having alleviateed the coal-winning machine motion with friction between the base shell all has the guard action to coal-winning machine and base shell.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a structural sectional view of a shock absorbing device for a coal mining machine;
FIG. 2 is a schematic view of the structure in the direction A-A of FIG. 1;
FIG. 3 is a structural plan view of a shock absorbing device for a coal cutter;
FIG. 4 is an enlarged view of the structure of portion A of FIG. 1;
FIG. 5 is an enlarged view of the rubber ring portion;
in the figure, the coal mining machine comprises a base shell 1, a base shell 2, reinforcing ribs 3, a damping spring 4, an upper buffering spring 5, an upper groove 6, a lower fixing plate 7, a sleeve 8, a cavity 9, a coal mining machine supporting foot 10, an upper fixing plate 11, an upper connecting sleeve 12, a lower connecting sleeve 13, a lower buffering spring 14, a damping air bag 15, an upper connecting seat 16, an upper connecting rod 17, a lower connecting rod 18 and a rubber ring.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The working principle is as follows: the coal mining machine is arranged on the damping device of the utility model through the supporting legs of the coal mining machine, when the coal mining machine moves, the coal mining machine generates an upward or downward acting force, when the coal mining machine moves downwards, the upper buffer spring stretches, the lower buffer spring compresses, and when the upper connecting sleeve and the lower connecting sleeve are driven to move downwards in the sleeve, the damping air bags in the two groups of damping components can realize the damping of the coal mining machine; when the coal mining machine moves upwards, the lower buffer spring is stretched, the upper buffer spring is compressed, and the upper connecting sleeve and the lower connecting sleeve are driven to move upwards in the sleeve, so that the damping air bags in the two groups of damping assemblies can realize damping on the coal mining machine; when the coal mining machine stops moving, the upper buffer spring, the lower buffer spring and the shock absorption assembly rebound to the original positions.
As shown in fig. 4, in this embodiment, the shock absorption assembly includes a shock absorption airbag 14, an upper end of the shock absorption airbag 14 is connected to a lower end of an upper connection seat 15, a lower end of the shock absorption airbag 14 is connected to an upper end of a lower connection seat, an upper end of the upper connection seat 15 is hinged to lower ends of two upper connection rods 16, upper ends of the two upper connection rods 16 are hinged to the bottom of the upper fixing plate 10, and the two upper connection rods 16 and the upper fixing plate 10 form a triangle; the lower end of the lower connecting seat is hinged with the upper ends of the two lower connecting rods 17, the lower ends of the two lower connecting rods 17 are hinged with the top of the lower fixing plate 6 respectively, and the two lower connecting rods 17 and the lower fixing plate 6 enclose a triangle.
The utility model discloses replaced the shock attenuation gasbag with the spring among the shock-absorbing component, the gasbag shock attenuation is an inflatable type damping device, is the vibrations that utilize the atmospheric pressure resistance to prevent the coal-winning machine that shakes, and the shock attenuation gasbag is better than spring shock attenuation's stability, and the shock attenuation is effectual. And the utility model discloses two go up the connecting rod and enclose into triangle-shaped and two lower connecting rods and bottom plate with the upper fixed plate enclose into triangle-shaped, triangle-shaped's setting can increase the stability of connecting, and then increases the stability of shock attenuation effect.
In this embodiment, the damping airbag includes two connected oblate airbags, and the two oblate airbags are inflated. In this embodiment, the two sets of damping assemblies connected between the upper fixing plate 10 and the lower fixing plate 6 are stressed in the same manner when in a static state. The balance and the uniformity of shock absorption during the movement of the coal mining machine are improved. In this embodiment, a circle of reinforcing ribs 2 is welded on the periphery of the connection between the supporting legs 9 of the coal mining machine and the upper fixing plate 10. The firmness of connection between the supporting legs of the coal mining machine and the upper fixing plate is improved.
As shown in fig. 5, in this embodiment, a rubber ring is disposed between the coal mining machine supporting foot 9 and the circular opening of the base housing 1, a groove for placing the base housing is formed in an outer ring of the rubber ring, and an inner ring of the rubber ring is in contact with the coal mining machine supporting foot. The friction between the coal mining machine and the base shell during movement is reduced, and the coal mining machine and the base shell are protected.
In this embodiment, the central position of the bottom of the lower fixing plate 6 is connected to one end of the damping spring 3, and the other end of the damping spring 3 is connected to the bottom surface of the base housing 1. The added damping spring has an auxiliary effect on the damping of the coal mining machine. In this embodiment, the inner diameter of the upper connecting sleeve 11 is 2mm larger than the outer diameter of the sleeve 7. In this embodiment, the inner diameter of the lower connecting sleeve 12 is 2mm larger than the outer diameter of the sleeve 7. In this embodiment, the upper groove 5 and the lower groove have the same groove depth. And the depth of the groove is 1/3 the length of the rest state of the upper buffer spring or the lower buffer spring.
Embodiment 2, as shown in fig. 1, 2, and 3, a damping device for a coal mining machine includes a base housing 1 having a circular opening at the top, a damping device is disposed in a cavity 8 of the base housing 1, the damping device includes an upper fixing plate 10 and a lower fixing plate 6 located below the upper fixing plate 10, upper connection sleeves 11 are respectively connected at four corners of the upper fixing plate 10, lower connection sleeves 12 are respectively connected at four corners of the lower fixing plate 6, the four upper connection sleeves 11 are correspondingly sleeved at upper sides of the four sleeves 7, the four lower connection sleeves 12 are correspondingly sleeved at lower sides of the four sleeves 7, the top of each sleeve 7 is connected with one end of an upper buffer spring 4, the other end of the upper buffer spring 4 is connected with an upper groove 5 formed at the top of the base housing 1, the bottom of each sleeve 7 is connected with one end of a lower buffer spring 13, the other end of the lower buffer spring 13 is connected with a lower groove formed at the bottom of the base shell 1, and four groups of damping components are connected between the upper fixing plate 10 and the lower fixing plate 6; a coal mining machine supporting foot 9 is fixedly installed at the center position above the upper fixing plate 10, and the upper end of the coal mining machine supporting foot 9 penetrates through the circular opening of the base shell 1 and then is connected with a coal mining machine.
The working principle is as follows: the damping device of the coal mining machine is installed on the damping device of the utility model through the supporting feet of the coal mining machine, when the coal mining machine moves, the coal mining machine generates upward or downward acting force, when the coal mining machine moves downward, the upper buffer spring stretches, the lower buffer spring compresses, and when the upper connecting sleeve and the lower connecting sleeve are driven to move downward in the sleeve, the damping air bags in the four groups of damping components can realize damping on the coal mining machine; when the coal mining machine moves upwards, the lower buffer spring is stretched, the upper buffer spring is compressed, and the upper connecting sleeve and the lower connecting sleeve are driven to move upwards in the sleeve, so that the damping air bags in the four groups of damping assemblies can realize damping on the coal mining machine; when the coal mining machine stops moving, the upper buffer spring, the lower buffer spring and the shock absorption assembly rebound to the original positions.
As shown in fig. 4, in this embodiment, the shock absorption assembly includes a shock absorption airbag 14, an upper end of the shock absorption airbag 14 is connected to a lower end of an upper connection seat 15, a lower end of the shock absorption airbag 14 is connected to an upper end of a lower connection seat, an upper end of the upper connection seat 15 is hinged to lower ends of two upper connection rods 16, upper ends of the two upper connection rods 16 are hinged to the bottom of the upper fixing plate 10, and the two upper connection rods 16 and the upper fixing plate 10 form a triangle; the lower end of the lower connecting seat is hinged with the upper ends of the two lower connecting rods 17, the lower ends of the two lower connecting rods 17 are hinged with the top of the lower fixing plate 6 respectively, and the two lower connecting rods 17 and the lower fixing plate 6 enclose a triangle.
The utility model discloses replaced the shock attenuation gasbag with the spring among the shock-absorbing component, the gasbag shock attenuation is an inflatable type damping device, is the vibrations that utilize the atmospheric pressure resistance to prevent the coal-winning machine that shakes, and the shock attenuation gasbag is better than spring shock attenuation's stability, and the shock attenuation is effectual. And the utility model discloses two go up the connecting rod and enclose into triangle-shaped and two lower connecting rods and bottom plate with the upper fixed plate enclose into triangle-shaped, triangle-shaped's setting can increase the stability of connecting, and then increases the stability of shock attenuation effect.
In this embodiment, the damping airbag includes three connected oblate airbags, and the three oblate airbags are inflated. In this embodiment, four sets of shock absorbing assemblies connected between the upper fixing plate 10 and the lower fixing plate 6 are stressed uniformly when in a static state. The balance and the uniformity of shock absorption during the movement of the coal mining machine are improved. In this embodiment, a circle of reinforcing ribs 2 is welded on the periphery of the connection between the supporting legs 9 of the coal mining machine and the upper fixing plate 10. The firmness of connection between the supporting legs of the coal mining machine and the upper fixing plate is improved.
As shown in fig. 5, in this embodiment, a rubber ring is disposed between the coal mining machine supporting foot 9 and the circular opening of the base housing 1, a groove for placing the base housing is formed in an outer ring of the rubber ring, and an inner ring of the rubber ring is in contact with the coal mining machine supporting foot. The friction between the coal mining machine and the base shell during movement is reduced, and the coal mining machine and the base shell are protected.
In this embodiment, the central position of the bottom of the lower fixing plate 6 is connected to one end of the damping spring 3, and the other end of the damping spring 3 is connected to the bottom surface of the base housing 1. The added damping spring has an auxiliary effect on the damping of the coal mining machine. In this embodiment, the inner diameter of the upper connecting sleeve 11 is greater than the outer diameter of the sleeve 7 by 5 mm. In this embodiment, the inner diameter of the lower connecting sleeve 12 is greater than the outer diameter of the sleeve 7 by 5 mm. In this embodiment, the upper groove 5 and the lower groove have the same groove depth. And the depth of the groove is 1/3 the length of the rest state of the upper buffer spring or the lower buffer spring.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Besides the technical features described in the specification, other technical features are known to those skilled in the art, and further description of the other technical features is omitted here in order to highlight the innovative features of the present invention.
Claims (10)
1. The damping device for the coal mining machine is characterized by comprising a base shell (1) with a circular opening at the top, wherein the damping device is arranged in a cavity (8) of the base shell (1) and comprises an upper fixing plate (10) and a lower fixing plate (6) positioned below the upper fixing plate (10), upper connecting sleeves (11) are respectively connected at the positions of four corners of the upper fixing plate (10), lower connecting sleeves (12) are respectively connected at the positions of four corners of the lower fixing plate (6), the four upper connecting sleeves (11) are correspondingly sleeved at the outer upper sides of four sleeves (7), the four lower connecting sleeves (12) are correspondingly sleeved at the outer lower sides of the four sleeves (7), the top of each sleeve (7) is connected with one end of an upper buffer spring (4), the other end of the upper buffer spring (4) is connected with an upper groove (5) formed in the top of the base shell (1), the bottom of each sleeve (7) is connected with one end of a lower buffer spring (13), the other end of the lower buffer spring (13) is connected with a lower groove formed in the bottom of the base shell (1), and at least two groups of damping assemblies are connected between the upper fixing plate (10) and the lower fixing plate (6); a coal mining machine supporting foot (9) is fixedly installed at the center position above the upper fixing plate (10), and the upper end of the coal mining machine supporting foot (9) penetrates through the circular opening of the base shell (1) and then is connected with a coal mining machine.
2. The damping device for the coal mining machine is characterized in that the damping assembly comprises a damping air bag (14), the upper end of the damping air bag (14) is connected with the lower end of an upper connecting seat (15), the lower end of the damping air bag (14) is connected with the upper end of a lower connecting seat, the upper end of the upper connecting seat (15) is hinged with the lower ends of two upper connecting rods (16), the upper ends of the two upper connecting rods (16) are hinged with the bottom of an upper fixing plate (10) respectively, and the two upper connecting rods (16) and the upper fixing plate (10) enclose a triangle; the lower end of the lower connecting seat is hinged to the upper ends of the two lower connecting rods (17), the lower ends of the two lower connecting rods (17) are hinged to the top of the lower fixing plate (6) respectively, and the two lower connecting rods (17) and the lower fixing plate (6) enclose a triangle.
3. The vibration absorbing device for a coal mining machine according to claim 2, wherein the vibration absorbing air bag comprises at least two oblate air bags communicated with each other, and the at least two oblate air bags are inflated.
4. A shock absorbing device for a coal mining machine according to claim 1 or 2, characterized in that at least two groups of shock absorbing components connected between the upper fixing plate (10) and the lower fixing plate (6) are stressed in the same way when in a static state.
5. The damping device for the coal mining machine according to claim 1, characterized in that a circle of reinforcing ribs (2) are welded on the periphery of the connection of the coal mining machine supporting feet (9) and the upper fixing plate (10).
6. The damping device for the coal mining machine according to claim 1, characterized in that a rubber ring is arranged between the supporting feet (9) of the coal mining machine and the circular opening of the base shell (1), a groove for placing the base shell is formed in the outer ring of the rubber ring, and the inner ring of the rubber ring is in contact with the supporting feet of the coal mining machine.
7. The damping device for the coal mining machine is characterized in that the central position of the bottom of the lower fixing plate (6) is connected with one end of a damping spring (3), and the other end of the damping spring (3) is connected with the bottom surface of the base shell (1).
8. A shock-absorbing device for a coal mining machine according to claim 1, characterized in that the inner diameter of the upper connecting sleeve (11) is 2-5mm larger than the outer diameter of the sleeve (7).
9. A damping device for a coal mining machine according to claim 1, characterized in that the inner diameter of the lower connecting sleeve (12) is 2-5mm larger than the outer diameter of the sleeve (7).
10. A vibration damper for a coal mining machine according to claim 1, characterized in that the upper groove (5) and the lower groove have the same groove depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920680056.4U CN209977149U (en) | 2019-05-14 | 2019-05-14 | Damping device for coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920680056.4U CN209977149U (en) | 2019-05-14 | 2019-05-14 | Damping device for coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209977149U true CN209977149U (en) | 2020-01-21 |
Family
ID=69262088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920680056.4U Expired - Fee Related CN209977149U (en) | 2019-05-14 | 2019-05-14 | Damping device for coal mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209977149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610209A (en) * | 2021-01-15 | 2021-04-06 | 上海内墨科技有限公司 | Special terrain tunneling device for protecting tunneling drill bit during mining |
-
2019
- 2019-05-14 CN CN201920680056.4U patent/CN209977149U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610209A (en) * | 2021-01-15 | 2021-04-06 | 上海内墨科技有限公司 | Special terrain tunneling device for protecting tunneling drill bit during mining |
| CN112610209B (en) * | 2021-01-15 | 2021-10-26 | 苏州许本科技有限公司 | Special terrain tunneling device for protecting tunneling drill bit during mining |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205715433U (en) | A kind of electromechanical equipment damping device | |
| CN106224431B (en) | A kind of mining machinery damping base | |
| CN211685599U (en) | Unmanned aerial vehicle support damping device for aerial survey remote sensing | |
| CN210105851U (en) | Novel supporting device of coal mining machine | |
| CN207018424U (en) | A kind of electromechanical equipment damping device | |
| CN209977149U (en) | Damping device for coal mining machine | |
| CN112706914A (en) | Helicopter undercarriage with protection function | |
| CN212205843U (en) | Novel spring damping landing buffer structure | |
| CN109027106A (en) | A kind of pneumatic element damping device | |
| CN208982898U (en) | A kind of Mars Miner damping base | |
| CN208483594U (en) | A kind of lathe damping device | |
| CN212429618U (en) | Novel steel machine base | |
| CN210950611U (en) | Damping supporting seat for mechanical equipment | |
| CN205479111U (en) | Oil development drilling platform damping device | |
| CN209294565U (en) | A kind of pipeline low frequency suspension and support | |
| CN217897856U (en) | Pressure gauge support cylinder for oil field logging | |
| RU2657725C1 (en) | Pneumatic shock absorber with two rubber cord casings of cylinder type | |
| CN210510130U (en) | Electromechanical device damping device | |
| CN210935425U (en) | Shock attenuation chemical industry centrifuge | |
| CN212455332U (en) | Shock absorber for electromechanical device | |
| CN209370351U (en) | A kind of damper | |
| CN220505663U (en) | Damping device for electromechanical equipment of mine | |
| CN213982532U (en) | Damping device for electromechanical device | |
| CN218543036U (en) | TPU polyurethane buffer pad for shock absorber | |
| CN110902104A (en) | Corrugated paper packing box with shock attenuation effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |