CN210195655U - Shock attenuation apron and dig rig chassis soon - Google Patents
Shock attenuation apron and dig rig chassis soon Download PDFInfo
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- CN210195655U CN210195655U CN201921001076.0U CN201921001076U CN210195655U CN 210195655 U CN210195655 U CN 210195655U CN 201921001076 U CN201921001076 U CN 201921001076U CN 210195655 U CN210195655 U CN 210195655U
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Abstract
The utility model belongs to the technical field of the chassis shock attenuation technique and specifically relates to a shock attenuation apron and dig rig chassis soon. The shock absorption cover plate comprises a cover plate main body and a shock absorption assembly; the shock absorption assembly comprises reinforcing ribs and a buffer piece; the cross section of the reinforcing rib is U-shaped, the opening end of the reinforcing rib faces the cover plate main body, and when the reinforcing rib is fixedly arranged below the cover plate main body, an installation space can be formed between the reinforcing rib and the cover plate main body; the buffer piece is positioned in the mounting space, and two ends of the buffer piece are respectively abutted against the bottom plate of the reinforcing rib and the cover plate main body; through setting up the strengthening rib in apron main part below, reinforce the intensity of apron main part, improve the bearing capacity of apron main part, and when digging the rig work soon and taking place vibrations, the bolster can absorb most vibrations to slow down the vibrations of top part, and the tensile stress of the part that the apron main part received can pass through the strengthening rib dispersion, thereby reduces the risk of local stress and apron main part fracture.
Description
Technical Field
The utility model belongs to the technical field of the chassis shock attenuation technique and specifically relates to a shock attenuation apron and dig rig chassis soon.
Background
At present, the rotary drilling rig is complex in structure and has more used parts, and a plurality of parts with certain weight, such as an air filter, an electric control cabinet, a tool box and the like, are arranged on an upper cover plate of a chassis of the rotary drilling rig; however, the upper cover plate is generally made of thin plates, the bearing capacity is insufficient, and if the plate is thickened, the weight of the whole machine is reduced due to the increase of the weight of components; and the thin upper cover plate has limited bearing capacity, and can crack due to vibration in the working process of the rotary drilling rig.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shock attenuation apron and dig rig chassis soon to solve the upper portion apron main part on chassis among the prior art to a certain extent and thinner, bearing capacity is limited, and easy because the technical problem who shakes emergence fracture.
The utility model provides a damping cover plate, which comprises a cover plate main body and a damping component; the shock absorption assembly comprises reinforcing ribs and a buffer piece; the reinforcing ribs are U-shaped, the opening ends of the reinforcing ribs face the cover plate main body, and the reinforcing ribs are connected with the lower plate surface of the cover plate main body; an installation space is formed between the reinforcing ribs and the lower plate surface of the cover plate main body; the bolster is located in the installation space, just the both ends of bolster respectively with the apron main part with the bottom plate of strengthening rib supports and leans on.
Further, the shock absorption assembly further comprises a connecting screw seat; one end of the connecting screw seat is positioned on the outer side of the reinforcing rib; the other end of the connecting screw seat penetrates through the bottom plate of the reinforcing rib and is abutted with the lower plate surface of the cover plate main body; an internal thread connecting hole is formed in the connecting screw seat and penetrates through two ends of the connecting screw seat; the cover plate main body is provided with a mounting hole corresponding to the internal thread connecting hole, and the internal thread connecting hole is communicated with the mounting hole.
Furthermore, one end, far away from the cover plate main body, of the connecting screw seat is provided with a limiting through hole, the limiting through hole is communicated with the internal thread connecting hole, and the diameter of the limiting through hole is larger than that of the internal thread connecting hole.
Furthermore, a boss part is arranged at one end of the connecting wire seat, which is positioned at the outer side of the reinforcing rib, and the end surface of the boss part, which faces the reinforcing rib, is abutted against the reinforcing rib; the connecting screw seat is connected with the reinforcing rib through the boss part.
Furthermore, the number of the connecting screw seats and the number of the mounting holes are multiple; the plurality of connecting screw seats are arranged on the reinforcing ribs at intervals along a first direction and correspond to the plurality of mounting holes in the cover plate main body one to one; the first direction is a length extending direction of the reinforcing ribs.
Further, the number of the shock absorption assemblies is multiple, and the shock absorption assemblies are distributed at intervals along the second direction; the second direction is perpendicular to the first direction.
Further, the number of the buffer members is multiple; the plurality of buffer parts correspond to the connecting wire seats one by one and are sleeved outside the connecting wire seats.
Further, the buffer is a rubber pad or a spring.
Further, the thickness of the reinforcing rib is 5-10 mm.
The utility model also provides a dig rig chassis soon, including above-mentioned arbitrary the shock attenuation apron.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a damping cover plate, which comprises a cover plate main body and a damping component; the cover plate main body is horizontally arranged, and components such as an air filter, an electric control cabinet and the like are arranged on the cover plate main body; the shock absorption assembly is positioned below the cover plate main body and is fixedly connected with the lower plate surface of the cover plate main body. The shock absorption assembly comprises reinforcing ribs and a buffer piece; the reinforcing ribs are positioned below the cover plate main body and fixedly connected with the cover plate main body; thereby through set up the strengthening rib in apron main part below, reinforce the intensity of apron main part, improve the bearing capacity of apron main part.
The cross section of the reinforcing rib is U-shaped, the open end of the reinforcing rib faces the cover plate main body, and when the reinforcing rib is fixedly arranged below the cover plate main body, an installation space can be formed between the reinforcing rib and the cover plate main body; the buffer piece is positioned in the mounting space, one end of the buffer piece is abutted against the bottom plate of the reinforcing rib, and the other end of the buffer piece is abutted against the cover plate main body; the buffer part has certain elasticity, and when the buffer part is arranged between the reinforcing rib and the cover plate main body, the buffer part is in a compressed state and has certain compression amount, so that the buffer part can provide an upward acting force for the cover plate main body and can offset part of the acting force of the part above the cover plate main body on the cover plate main body. And when the rotary drilling rig works and the whole machine vibrates, the buffer piece can absorb most of the vibration to slow down the vibration of the cover plate main body, so that the vibration of the parts above the cover plate main body is slowed down, the damage of the parts above the cover plate main body due to the vibration is reduced to a certain extent, and the risk of cracking of the cover plate main body is reduced.
The utility model also provides a dig rig chassis soon, include the shock attenuation apron, therefore dig the rig chassis soon and also have the beneficial effect of shock attenuation apron.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a shock-absorbing cover plate according to an embodiment of the present invention at a first viewing angle;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
fig. 3 is a schematic cross-sectional structure view of a shock-absorbing assembly of a shock-absorbing cover plate according to an embodiment of the present invention.
Reference numerals:
1-cover plate main body, 11-mounting hole, 2-damping component, 21-reinforcing rib, 22-buffer component, 23-connecting screw seat, 24-internal thread connecting hole, 25-limiting through hole, 26-boss part, a-first direction and b-second direction.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following describes a damping cover plate and a rotary drilling rig chassis according to some embodiments of the present application with reference to fig. 1 to 3.
The present application provides a shock-absorbing cover plate, as shown in fig. 1 to 3, comprising a cover plate body 1 and a shock-absorbing assembly 2; the shock absorption assembly 2 comprises a reinforcing rib 21 and a buffer piece 22;
the reinforcing ribs 21 are U-shaped, the open ends of the reinforcing ribs face the cover plate main body 1, and the reinforcing ribs are connected with the lower plate surface of the cover plate main body 1; an installation space is formed between the reinforcing ribs 21 and the lower plate surface of the cover plate main body 1;
the buffer member 22 is located in the installation space, and two ends of the buffer member 22 respectively abut against the cover plate main body 1 and the bottom plate of the reinforcing rib 21.
The shock absorption cover plate comprises a cover plate main body 1 and a shock absorption assembly 2; the cover plate main body 1 is horizontally arranged, and components such as an air filter, an electric control cabinet and the like are arranged on the cover plate main body 1; the shock absorption assembly 2 is positioned below the cover plate main body 1 and is fixedly connected with the lower plate surface of the cover plate main body 1. The shock absorption assembly 2 comprises a reinforcing rib 21 and a buffer piece 22; the reinforcing ribs 21 are positioned below the cover plate main body 1 and fixedly connected with the cover plate main body 1; thus, the reinforcing ribs 21 are provided below the cover plate body 1 to reinforce the strength of the cover plate body 1 and improve the load-bearing capacity of the cover plate body 1.
The cross section of the reinforcing rib 21 is U-shaped, the open end of the reinforcing rib 21 faces the cover plate main body 1, and when the reinforcing rib 21 is fixedly arranged below the cover plate main body 1, an installation space can be formed between the reinforcing rib 21 and the cover plate main body 1; the buffer member 22 is positioned in the installation space, one end of the buffer member 22 abuts against the bottom plate of the reinforcing rib 21, and the other end of the buffer member 22 abuts against the cover plate main body 1; the cushion member 22 has a certain elasticity, and when the cushion member 22 is mounted between the rib 21 and the cover main body 1, it is in a compressed state and has a certain amount of compression, so that the cushion member 22 can provide an upward acting force to the cover main body 1 and can offset part of the acting force of the upper part of the cover main body 1 to the cover main body 1. When the rotary drilling rig works and the whole machine vibrates, the buffer part 22 can absorb most of the vibration to slow down the vibration of the cover plate main body 1, so that the vibration of the part above the cover plate main body 1 is slowed down, the damage of the part above the cover plate main body 1 due to the vibration is reduced to a certain extent, and the risk of cracking of the cover plate main body 1 is reduced.
Preferably, the reinforcing ribs 21 and the buffer 22 positioned in the reinforcing ribs 21 are correspondingly positioned below the area where the component is positioned above the cover plate main body 1, so that the strength of the joint of the cover plate main body 1 and the component is reinforced; meanwhile, when vibration occurs, the buffer member 22 can absorb most of the vibration and slow down the vibration of the upper part, and the tensile stress of the part received by the cover plate main body 1 can be dispersed through the reinforcing ribs 21, so that the risk of local stress and overall cracking is reduced.
The connection between the reinforcing rib 21 and the cover plate body 1 may be welding or bolting. During specific installation, the buffer pieces 22 are placed in the reinforcing ribs 21, the shock absorption assemblies 2 are placed below corresponding positions according to the installation positions of the parts above the cover plate main body 1, and then the reinforcing ribs 21 are welded or bolted to the cover plate main body 1. Preferably, the connection between the reinforcing ribs 21 and the cover plate main body 1 is a welding connection, so that the connection strength between the reinforcing ribs 21 and the cover plate main body 1 is ensured, and the reinforcing ribs 21 are stably and firmly arranged below the cover plate main body 1.
In one embodiment of the present application, preferably, as shown in fig. 2 and 3, the shock-absorbing assembly 2 further includes a connecting wire seat 23; one end of the connecting wire seat 23 is positioned outside the reinforcing rib 21; the other end of the connecting screw seat 23 penetrates through the bottom plate of the reinforcing rib 21 and is abutted with the lower plate surface of the cover plate main body 1;
an internal thread connecting hole 24 is formed in the connecting screw seat 23, and the internal thread connecting hole 24 penetrates through two ends of the connecting screw seat 23; the cover plate main body 1 is provided with a mounting hole 11 corresponding to the internal thread connecting hole 24, and the internal thread connecting hole 24 is communicated with the mounting hole 11.
In this embodiment, the damping module 2 further includes a connecting screw seat 23, the connecting screw seat 23 is disposed perpendicular to the cover plate main body 1, one end of the connecting screw seat 23 is located outside the reinforcing rib 21 and is connected to the bottom plate of the reinforcing rib 21, and the other end of the connecting screw seat 23 penetrates through the bottom plate of the reinforcing rib 21 and abuts against the lower plate surface of the cover plate main body 1. An internal thread connecting hole 24 is formed in the connecting screw seat 23, the internal thread connecting hole 24 penetrates through the connecting screw seat 23, a mounting hole 11 is formed in the cover plate main body 1, and the mounting hole 11 is communicated with the internal thread connecting hole 24 in the connecting screw seat 23; the part is positioned above the cover plate main body 1, and the mounting threaded hole below the part can be communicated with the mounting hole 11 and the internal thread connecting hole 24; the fastening piece can be connected with the component positioned above the cover plate main body 1 through the internal thread connecting hole 24 and the mounting hole 11 in sequence, so that the component is stably and firmly mounted on the cover plate main body 1 and is mounted above the shock absorption assembly 2; thereby reinforcing the strength of the joint of the cover plate main body 1 and the parts by the reinforcing ribs 21 of the damper assembly 2; meanwhile, when vibration occurs, the buffer part 22 can absorb most of the vibration and slow down the vibration of the upper part, and the reinforcing ribs 21 disperse the tensile stress of the parts received by the cover plate main body 1, so that the risk of local stress and overall cracking of the cover plate main body 1 is reduced to a certain extent.
In one embodiment of the present application, preferably, as shown in fig. 2, one end of the connecting screw seat 23 away from the cover plate main body 1 is provided with a limiting through hole 25, and the diameter of the limiting through hole 25 is larger than that of the internal threaded connecting hole 24.
In this embodiment, one end of the connecting screw seat 23, which is far away from the cover plate main body 1, is provided with a limiting through hole 25, the limiting through hole 25 and the internal threaded connecting hole 24 are located on the same axis, and one end of the limiting through hole 25, which is located in the connecting screw seat 23, is communicated with the internal threaded connecting hole 24; while the diameter of the limiting through hole 25 is larger than that of the female screw connecting hole 24. When the components are connected together with the cover plate body 1 and the damper assembly 2 by the fastening members through the connecting screw seats 23, the nut ends of the fastening members can be inserted into the limiting through holes 25.
In one embodiment of the present application, preferably, as shown in fig. 1, one end of the connecting wire seat 23 located outside the reinforcing bar 21 is provided with a boss portion 26, and an end surface of the boss portion 26 facing one end of the reinforcing bar 21 abuts against the reinforcing bar 21; the connecting wire seat 23 is connected to the reinforcing bar 21 via the boss portion 26.
In this embodiment, one end of the connecting wire seat 23 is provided with a boss portion 26, and the boss portion 26 is located at one end of the connecting wire seat 23 located outside the reinforcing bar 21; when one end of the connecting wire seat 23 passes through the reinforcing rib 21 and abuts against the cover plate main body 1, the end surface of the boss portion 26 of the connecting wire seat 23 facing one end of the reinforcing rib 21 abuts against the bottom plate of the reinforcing rib 21, and the boss portion 26 and the reinforcing rib 21 are fixedly connected together, thereby fixedly connecting the connecting wire seat 23 and the reinforcing rib 21. The connection between the boss 26 and the reinforcing rib 21 may be welding or bolting, and preferably, the connection between the two is welding.
Meanwhile, a boss part 26 is arranged at one end of the connecting wire seat 23, and the connecting wire seat is abutted against and connected with the reinforcing rib 21 through the boss part 26; the stress of the cover plate main body 1 can be dispersed to the reinforcing ribs 21 through the connecting screw seats 23, so that the strength of the cover plate main body 1 is improved.
In one embodiment of the present application, preferably, as shown in fig. 1, the number of the connecting wire seats 23 and the mounting holes 11 is plural; the plurality of connecting screw seats 23 are arranged on the reinforcing ribs 21 at intervals along the first direction a, and correspond to the plurality of mounting holes 11 on the cover plate main body 1 one to one.
In this embodiment, a plurality of mounting threaded holes are distributed on a component above the cover plate main body 1 along the first direction a, and correspondingly, a plurality of mounting holes 11 distributed at intervals are arranged on the cover plate main body 1 along the first direction a; the reinforcing ribs 21 of the damper assembly 2 extend in the first direction a and are disposed below the corresponding regions of the cover main body 1 in the component mounting region; the reinforcing rib 21 is provided with a plurality of connecting screw seats 23, the connecting screw seats 23 are arranged at intervals along the first direction a and correspond to the mounting holes 11 on the cover plate main body 1 one by one; therefore, the components are more stably installed on the cover plate main body 1, the acting force of the components acting on the cover plate main body 1 is uniformly dispersed on the reinforcing ribs 21, and the risk of local stress and overall cracking of the cover plate main body 1 is reduced to a certain extent.
In one embodiment of the present application, preferably, as shown in fig. 1, the number of the shock absorbing assemblies 2 is plural, and the plurality of shock absorbing assemblies 2 are distributed at intervals along the second direction b; the second direction b is perpendicular to the first direction a.
In the embodiment, the number of the installation threaded holes of the component is a plurality, and the installation threaded holes are distributed in a matrix form along a first direction a and a second direction b perpendicular to the first direction a; the number of the shock absorption assemblies 2 is also multiple, the shock absorption assemblies 2 are arranged at intervals along the second direction b, the reinforcing rib 21 of each shock absorption assembly 2 extends along the first direction a, and a plurality of connecting screw seats 23 arranged at intervals are arranged on each shock absorption assembly 2 along the first direction a; a plurality of mounting holes 11 distributed in a matrix form are formed in the cover plate main body 1 corresponding to mounting threaded holes in the parts and internal threaded connecting holes 24 in a connecting screw seat 23; the components are then stably and securely connected together with the cover plate body 1 and the shock-absorbing assembly 2 by the fasteners.
Meanwhile, by arranging a plurality of shock absorption assemblies 2 arranged at intervals along the second direction b, the tensile stress on the cover plate main body 1 can be dispersed to the reinforcing ribs 21 at a higher level, and the local stress of the cover plate main body 1 is reduced to a certain extent, and the risk of overall cracking is reduced.
In one embodiment of the present application, preferably, as shown in fig. 1 to 3, the buffer member 22 is plural in number; the plurality of buffering members 22 correspond to the connecting wire seats 23 one by one, and are sleeved outside the connecting wire seats 23.
In this embodiment, the number of the buffering members 22 between the reinforcing rib 21 and the cover plate main body 1 is plural, and the plural buffering members 22 correspond to the connecting wire seats 23 one by one and are sleeved outside the connecting wire seats 23; through setting up a plurality of bolster 22, when taking place vibrations, bolster 22 can absorb most vibrations to slow down the vibrations of top part, and the tensile stress of the part that apron main part 1 received can pass through strengthening rib 21 dispersion, thereby reduces the risk of local stress and whole fracture.
In one embodiment of the present application, the bumper 22 is preferably a rubber pad or spring, as shown in fig. 3.
In this embodiment, the buffer 22 may be rubber or a spring, which has a certain elasticity and can absorb most of the vibration when the vibration occurs, so as to slow down the vibration of the upper component, and to some extent, reduce the risk of cracking of the cover plate body 1 due to the vibration.
In one embodiment of the present application, the reinforcing beads 21 preferably have a plate thickness of 5 to 10mm, as shown in fig. 3.
In this embodiment, the ribs 21 have a plate thickness of 5 to 10mm, and the ribs 21 have a sufficient thickness to enhance the strength thereof, thereby allowing them to withstand the stress applied to the cover main body 1 and the upper member.
The application also provides a rotary drilling rig chassis which comprises the damping cover plate in any one of the embodiments.
In this embodiment, the chassis of the rotary drilling rig comprises the damping cover plate, so that the chassis of the rotary drilling rig has all the beneficial effects of the damping cover plate, and the description is omitted.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A shock-absorbing cover plate is characterized by comprising a cover plate main body and a shock-absorbing component; the shock absorption assembly comprises reinforcing ribs and a buffer piece;
the reinforcing ribs are U-shaped, the opening ends of the reinforcing ribs face the cover plate main body, and the reinforcing ribs are connected with the lower plate surface of the cover plate main body; an installation space is formed between the reinforcing ribs and the lower plate surface of the cover plate main body;
the bolster is located in the installation space, just the both ends of bolster respectively with the apron main part with the bottom plate of strengthening rib supports and leans on.
2. The shock absorbing deck as recited in claim 1, wherein said shock absorbing assembly further comprises a connecting screw seat;
one end of the connecting screw seat is positioned on the outer side of the reinforcing rib; the other end of the connecting screw seat penetrates through the bottom plate of the reinforcing rib and is abutted with the lower plate surface of the cover plate main body;
an internal thread connecting hole is formed in the connecting screw seat and penetrates through two ends of the connecting screw seat; the cover plate main body is provided with a mounting hole corresponding to the internal thread connecting hole, and the internal thread connecting hole is communicated with the mounting hole.
3. The shock-absorbing cover plate according to claim 2, wherein a limiting through hole is formed in one end, away from the cover plate main body, of the connecting screw seat, the limiting through hole is communicated with the internal threaded connecting hole, and the diameter of the limiting through hole is larger than that of the internal threaded connecting hole.
4. The shock absorbing cover plate according to claim 2, wherein a boss portion is provided at an end of the connecting wire seat located outside the reinforcing rib, and an end surface of the boss portion facing the reinforcing rib abuts against the reinforcing rib; the connecting screw seat is connected with the reinforcing rib through the boss part.
5. The shock absorbing deck as recited in claim 2, wherein the number of the connection screw seats and the mounting holes is plural;
the plurality of connecting screw seats are arranged on the reinforcing ribs at intervals along a first direction and correspond to the plurality of mounting holes in the cover plate main body one to one;
the first direction is a length extending direction of the reinforcing ribs.
6. The shock absorbing deck as set forth in claim 5, wherein said shock absorbing members are plural in number, and said plural shock absorbing members are spaced apart in said second direction; the second direction is perpendicular to the first direction.
7. The shock absorbing deck as recited in claim 5, wherein said buffer member is plural in number; the plurality of buffer parts correspond to the connecting wire seats one by one and are sleeved outside the connecting wire seats.
8. The shock absorbing deck as recited in claim 1, wherein said shock absorbing member is a rubber pad or a spring.
9. The vibration-damping deck according to claim 1, wherein the reinforcing ribs have a plate thickness of 5 to 10 mm.
10. A rotary drilling rig chassis, characterized by comprising the damping cover plate of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921001076.0U CN210195655U (en) | 2019-06-28 | 2019-06-28 | Shock attenuation apron and dig rig chassis soon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921001076.0U CN210195655U (en) | 2019-06-28 | 2019-06-28 | Shock attenuation apron and dig rig chassis soon |
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| Publication Number | Publication Date |
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| CN210195655U true CN210195655U (en) | 2020-03-27 |
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| CN201921001076.0U Active CN210195655U (en) | 2019-06-28 | 2019-06-28 | Shock attenuation apron and dig rig chassis soon |
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| CN (1) | CN210195655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273644A (en) * | 2019-06-28 | 2019-09-24 | 三一重机有限公司 | Damping cover board and base plate of rotary drill rig |
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2019
- 2019-06-28 CN CN201921001076.0U patent/CN210195655U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273644A (en) * | 2019-06-28 | 2019-09-24 | 三一重机有限公司 | Damping cover board and base plate of rotary drill rig |
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