CN212671577U - Airborne jumbolter - Google Patents
Airborne jumbolter Download PDFInfo
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- CN212671577U CN212671577U CN202021538996.9U CN202021538996U CN212671577U CN 212671577 U CN212671577 U CN 212671577U CN 202021538996 U CN202021538996 U CN 202021538996U CN 212671577 U CN212671577 U CN 212671577U
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Abstract
The utility model belongs to the technical field of the mechanized equipment technique of digging and specifically relates to an airborne roofbolter is related to alleviate the guide rail stack setting of the two-level propulsion structure that exists among the prior art, cause the vertical size of rig great, the great problem of occupation space. This machine carries roofbolter includes: a primary propulsion mechanism and a secondary propulsion mechanism; the primary propulsion mechanism comprises a guide frame which can extend or retract along the propulsion direction and is provided with a sliding path parallel to the propulsion direction; the secondary propelling mechanism comprises a guide plate, and the guide plate is connected with the guide frame in a sliding manner; the secondary propulsion mechanism can extend or retract along the sliding path under the guiding action of the guide plate. The utility model provides a technical scheme is favorable to reducing the vertical size of rig, and rig occupation space is less.
Description
Technical Field
The utility model belongs to the technical field of the mechanized equipment technique of digging and specifically relates to a machine carries roofbolter is related to.
Background
The anchor rod drilling machine is a device for drilling anchor rod holes in a top plate or a side wall of an underground roadway and completing the working procedures of partially or completely installing anchor rods and anchor cables. In order to improve the drilling efficiency, the anchor rod drilling machine widely used in the market at present mostly adopts a multi-stage propelling stroke.
In the prior art, the guide rails are respectively and correspondingly arranged on the primary propelling structure and the secondary propelling structure of the secondary propelling device of the jumbolter, as shown in fig. 1, the primary propelling structure is guided by the first guide rail 113 ', the secondary propelling structure is guided by the second guide rail 114', and the first guide rail 113 'and the second guide rail 114' are overlapped to form a large longitudinal size of the jumbolter and occupy a large space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an airborne jumbolter to alleviate the guide rail stack setting of the two-level propulsion structure that exists among the prior art, cause jumbolter's vertical size great, the great problem of occupation space.
In order to solve the technical problem, the utility model provides a technical scheme lies in:
an airborne roofbolter, comprising: a primary propulsion mechanism and a secondary propulsion mechanism;
the primary propulsion mechanism comprises a guide frame which can extend or retract along a propulsion direction and is provided with a sliding path parallel to the propulsion direction;
the secondary propelling mechanism comprises a guide plate, and the guide plate is connected with the guide frame in a sliding manner; the secondary propelling mechanism can extend or retract along the sliding path under the guiding action of the guide plate.
Further, in the present invention,
the guide frame comprises a front fixing plate, a rear fixing plate, a primary slide bar group and a secondary slide bar group, wherein the primary slide bar group and the secondary slide bar group are positioned between the front fixing plate and the rear fixing plate, and the extension directions of the primary slide bar group and the secondary slide bar group are parallel to the propulsion direction;
the second-stage sliding rod group is located above the first-stage sliding rod group, and the guide plate is sleeved on the second-stage sliding rod group.
Further, in the present invention,
the primary propulsion mechanism also comprises a fixed frame body and a primary propulsion oil cylinder;
the two ends of the fixed frame body along the pushing direction are respectively a first end and a second end, the pushing direction of the guide frame is the direction in which the first end points to the second end, and the retracting direction of the guide frame is the direction in which the second end points to the first end;
one end of the primary propulsion oil cylinder is connected to the front fixing plate of the guide frame, and the other end of the primary propulsion oil cylinder is connected to the first end of the fixing frame body.
Further, in the present invention,
the fixed frame body comprises a bottom plate and a guide rail seat;
the first-stage sliding rod group is connected with the guide rail seat in a sliding mode.
Further, in the present invention,
the bottom plate is provided with a limiting block, and the primary sliding rod group is provided with a supporting ring;
the limiting block is arranged at a position close to the first end of the fixing frame body;
the support ring is in the stopper with the motion between the guide rail seat.
Further, in the present invention,
the secondary propulsion mechanism also comprises a secondary propulsion oil cylinder;
one end of the secondary propulsion oil cylinder is fixedly connected with the guide plate, and the other end of the secondary propulsion oil cylinder is fixedly connected with the rear fixing plate.
Further, in the present invention,
the airborne jumbolter also comprises an execution mechanism, wherein the execution mechanism comprises a pulley and a power head;
the pulley is arranged on the secondary slide bar group in a sliding manner;
the power head is fixedly connected to the pulley.
Further, in the present invention,
the second-stage propulsion oil cylinder is a double-chain multiplication oil cylinder.
Further, in the present invention,
the pulley is fixedly connected with a chain of the secondary propulsion oil cylinder, and the other end of the chain of the secondary propulsion oil cylinder is connected with the primary propulsion oil cylinder.
The embodiment of the utility model provides a following beneficial effect has been brought:
the airborne jumbolter provided by the utility model comprises a primary propulsion mechanism and a secondary propulsion mechanism; the primary propulsion mechanism comprises a guide frame which can extend or retract along a propulsion direction and is provided with a sliding path parallel to the propulsion direction; the secondary propelling mechanism comprises a guide plate, and the guide plate is connected with the guide frame in a sliding manner; the secondary propelling mechanism can extend or retract along the sliding path under the guiding action of the guide plate.
In the process that the jumbolter is changed from a retracted state to an expanded state, firstly, the guide frame extends out along the propelling direction so as to realize primary propelling; after the primary propulsion is finished, the secondary propulsion mechanism extends out along the sliding path under the guidance of the guide plate, so that the secondary propulsion is realized.
In the process of changing the jumbolter from the unfolding state to the folding state, firstly, the secondary propelling mechanism is reversely retracted along the sliding path under the guidance of the guide plate, and then, the guide frame is reversely retracted along the sliding path.
According to the analysis process above, the utility model provides a second grade advancing mechanism among jumbolter slides along the leading truck through the deflector and realizes the direction, need not additionally to set up the slide rail of direction, owing to left out the slide rail again, consequently must reduce the height in vertical direction to the great occupation space too big problem of jumbolter longitudinal dimension that the guide rail stack setting of having avoided the second grade propulsion structure among the prior art caused.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly introduced 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 view of a prior art on-board jumbolter;
fig. 2 is a schematic view of a retraction state of an onboard jumbolter according to an embodiment of the present invention;
fig. 3 is a schematic view of an extended state of an airborne jumbolter according to an embodiment of the present invention;
fig. 4 is a schematic view of a fixing frame body according to an embodiment of the present invention;
fig. 5 is a schematic view of a guide frame provided in an embodiment of the present invention;
fig. 6 is a schematic view of a pulley device according to an embodiment of the present invention;
fig. 7 is a schematic view of a guide plate according to an embodiment of the present invention;
fig. 8 is a schematic view of a two-stage thrust cylinder provided by the embodiment of the present invention.
Icon: 100-a first-stage propulsion mechanism; 200-a secondary propulsion mechanism; 300-a pulley; 400-power head;
110-a guide frame; 111-a front fixing plate; 112-rear fixing plate; 113-primary slider group; 114-secondary slider group; 113' -a first guide rail; 114' -a second rail;
120-fixing frame body; 121-a bottom plate; 122-a rail seat; 123-a limiting block;
130-a primary propulsion cylinder; 140-a support ring;
210-a guide plate; 220-two-stage propulsion oil cylinder.
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. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
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. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 according to specific situations by those skilled in the art.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict. Wherein fig. 1 is a schematic view of a prior art airborne jumbolter; fig. 2 is a schematic view of a retraction state of an onboard jumbolter according to an embodiment of the present invention; fig. 3 is a schematic view of an extended state of an airborne jumbolter according to an embodiment of the present invention; fig. 4 is a schematic view of a fixing frame body according to an embodiment of the present invention; fig. 5 is a schematic view of a guide frame provided in an embodiment of the present invention; fig. 6 is a schematic view of a pulley device according to an embodiment of the present invention; fig. 7 is a schematic view of a guide plate according to an embodiment of the present invention; fig. 8 is a schematic view of a two-stage thrust cylinder provided by the embodiment of the present invention.
Example one
The anchor rod drilling machine is a device for drilling anchor rod holes in a top plate or a side wall of an underground roadway and completing the working procedures of partially or completely installing anchor rods and anchor cables. In order to improve the drilling efficiency, the anchor rod drilling machine widely used in the market at present mostly adopts a multi-stage propelling stroke.
In the prior art, a guide rail is respectively and correspondingly arranged on a primary propelling structure and a secondary propelling structure of a secondary propelling device of the anchor rod drilling machine. As shown in fig. 1, the primary propelling structure is guided by the first guide rail 113 ', and the secondary propelling structure is guided by the second guide rail 114', and it is easy to see that the first guide rail 113 'and the second guide rail 114' are arranged in an overlapping manner, so that the jumbolter has a large longitudinal size and occupies a large space.
In view of this, the embodiment of the present invention provides an airborne jumbolter, as shown in fig. 2 and 3, including: a primary propulsion mechanism 100 and a secondary propulsion mechanism 200; the primary advancing mechanism 100 includes a guide frame 110, the guide frame 110 being capable of extending or retracting in an advancing direction, and the guide frame 110 being provided with a sliding path parallel to the advancing direction; the secondary propulsion mechanism 200 comprises a guide plate 210, and the guide plate 210 is slidably connected with the guide frame 110; the secondary propulsion mechanism 200 is capable of extending or retracting along a sliding path under the guidance of the guide plate 210.
The embodiment of the utility model provides a following beneficial effect has been brought: because the utility model provides a machine carries roofbolter, include: a primary propulsion mechanism 100 and a secondary propulsion mechanism 200; the primary advancing mechanism 100 includes a guide frame 110, the guide frame 110 being capable of extending or retracting in an advancing direction, and the guide frame 110 being provided with a sliding path parallel to the advancing direction; the secondary propulsion mechanism 200 comprises a guide plate 210, and the guide plate 210 is slidably connected with the guide frame 110; the secondary propulsion mechanism 200 is capable of extending or retracting along a sliding path under the guidance of the guide plate 210.
In the process of changing the jumbolter from the stowed state to the deployed state, first, the guide frame 110 is extended in the advancing direction to realize primary advancement; after the primary propulsion is completed, the secondary propulsion mechanism 200 is extended along the sliding path under the guidance of the guide plate 210, thereby performing the secondary propulsion.
In the process of the jumbolter being changed from the deployed state to the stowed state, first, the secondary advancing mechanism 200 is reversely retracted along the sliding path under the guidance of the guide plate 210, and then, the guide frame 110 is reversely retracted along the sliding path.
From above analytic process, the utility model provides a second grade advancing mechanism 200 among the roofbolter slides along leading truck 110 through deflector 210 and realizes the direction, need not additionally to set up the slide rail of direction, owing to left out the slide rail again, consequently must reduce the height in vertical direction to the great occupation space problem of roofbolter longitudinal dimension that has avoided the guide rail stack setting of two second grade advancing structure to cause among the prior art.
In an alternative to this embodiment, it is preferable that,
as shown in fig. 5, the guide frame 110 includes a front fixing plate 111, a rear fixing plate 112, a primary slider group 113 and a secondary slider group 114, which are located between the front fixing plate 111 and the rear fixing plate 112 and extend in a direction parallel to the pushing direction, and the secondary slider group 114 is located above the primary slider group 113.
Further, the primary slider group 113 and the secondary slider group 114 are connected to the front fixing plate 111 and the rear fixing plate 112 by a connecting member. Specifically, the front fixing plate 111 and the rear fixing plate 112 are provided with fixing bolts, and the first-stage sliding rod set 113 and the second-stage sliding rod set 114 are connected with the fixing bolts on the front fixing plate 111 and the rear fixing plate 112 through nuts at both ends.
In an alternative to this embodiment, it is preferable that,
the jumbolter is also provided with a guide plate, and the guide plate 210 is sleeved on the secondary slide bar group 114.
As shown in fig. 7, a through hole is formed on the guide plate 210, and the secondary slide bar set 114 passes through the through hole on the guide plate 210 and is slidably connected with the guide plate 210.
When the primary propulsion stroke ends and the secondary propulsion stroke begins, the guide plate 210 slides along the secondary slide bar group 114 to guide the secondary propulsion mechanism 200, no additional slide rail is required to be arranged, and the overall height of the anchor rod drilling machine is greatly reduced.
Further, a gasket is disposed in the through hole, and lubricating oil is coated between the gasket and the secondary slide rod set 114. The gasket and the lubricating oil can effectively reduce the friction between the guide plate 210 and the secondary sliding rod set 114 in the secondary propelling stroke, and the propelling efficiency of the mechanism is improved.
As a modification of the above manner, the guiding plate 210 may also be configured as a guiding ring structure, for example, including two guiding rings, the two guiding rings are respectively sleeved on two sliding rods of the secondary sliding rod set 114, and each guiding ring is fixedly connected with the secondary propelling mechanism 200.
In an alternative to this embodiment, it is preferable that,
the primary propulsion mechanism 100 further includes a stationary frame 120 and a primary propulsion cylinder 130. The two ends of the fixing frame body 120 along the pushing direction are respectively a first end and a second end, the pushing direction of the guide frame 110 is the direction in which the first end points to the second end, and the retracting direction of the guide frame 110 is the direction in which the second end points to the first end. One end of the primary thrust cylinder 130 is connected to the front fixing plate 111 of the guide frame 110, and the other end is connected to a first end of the fixing frame body 120.
Further, as shown in fig. 4, the fixing frame body 120 includes a base plate 121 and a rail seat 122, and the primary slide bar group 113 is slidably coupled to the rail seat 122.
Furthermore, the primary thrust cylinder 130 is connected to the front fixing plate 111 of the guide frame 110 by a screw thread, and is fixed to the first end of the fixing frame body 120 by inserting. The guide rail seat 122 is disposed at the second end close to the bottom plate 121, and a guide rail groove is formed in the upper portion of the guide rail seat, the groove forming direction of the guide rail groove is parallel to the propelling direction, and the two slide bars of the first-stage slide bar group 113 respectively pass through the guide rail groove and can be pushed out or retracted along the guide rail groove.
Further, the rail seat 122 is welded to the base plate 121, or the rail seat 122 and the base plate 121 are fixedly connected by bolts.
In an alternative to this embodiment, it is preferable that,
the bottom plate 121 is provided with a limiting block 123, the first-stage sliding rod group 113 is provided with a supporting ring 140, the limiting block 123 is arranged at a position close to the first end of the fixing frame body 120, and the supporting ring 140 moves between the limiting block 123 and the guide rail seat 122.
Furthermore, the limiting block 123 is welded on the bottom plate 121, and the support ring 140 is sleeved on the first-stage sliding rod set 113.
During the pushing stroke, due to the downward force applied to the primary slide bar set 113 by the reaction of the perforation, the primary slide bar set 113 is slightly deformed so that the support ring 140 comes into contact with the bottom plate 121. After the contact, the bottom plate 121 generates an upward supporting force on the primary sliding rod set 113 through the supporting ring 140, that is, the moment of the acting force generated by the bottom plate 121 on the primary sliding rod set 113 becomes smaller, or the length of the cantilever of the guide frame 110 is reduced, so that the guide frame 110 is prevented from being deformed too much due to too large stress in the propelling process.
In the retracting stroke, when the support ring 140 moves back to the position of the limit block 123, the support ring 140 cannot be retracted continuously due to the limit of the limit block 123, which is the limit position when the support ring 140 is retracted, so that the support ring 140 is ensured to move between the limit block 123 and the guide rail seat 122, and the primary slide bar group 113 is effectively supported in time.
In an alternative to this embodiment, it is preferable that,
the onboard roofbolter also includes an actuator that includes a sled 300 and a power head 400. The sled 300 is slidably mounted to the secondary sled set 114 and the power head 400 is fixedly attached to the sled 300.
Further, as shown in fig. 6, the pulley 300 is formed by connecting a thin plate and four sliders. Specifically, a boss is arranged in the middle of the thin plate, the four sliding blocks are fixedly connected with the corner positions of the lower surface of the thin plate respectively, sliding grooves are formed in the sliding blocks, the slotting direction of the sliding grooves is parallel to the propelling direction, and the secondary sliding rod group 114 penetrates through the sliding grooves to be in sliding connection with the pulley 300.
Furthermore, the power head 400 is provided with a groove, and the groove is embedded in a boss on the thin plate and is fixedly connected with the pulley 300 through a bolt.
In an alternative to this embodiment, it is preferable that,
the secondary propulsion mechanism further comprises a secondary propulsion oil cylinder 220, one end of the secondary propulsion oil cylinder 220 is fixedly connected with the guide plate 210, and the other end of the secondary propulsion oil cylinder 220 is fixedly connected with the rear fixing plate 112.
In an alternative to this embodiment, it is preferable that,
the secondary propulsion cylinder 220 is configured as a double chain multiplication cylinder.
Specifically, as shown in fig. 8, two ends of the secondary propulsion cylinder 220 are connected to sprockets, and two chains are wound around the sprockets respectively and are driven by meshing of the chains and the sprockets. The double-chain multiplication structure can enable the oil cylinder to be stressed uniformly without unbalance loading, so that the service life of the secondary propulsion oil cylinder 220 is effectively prolonged.
In an alternative to this embodiment, it is preferable that,
the pulley 300 is fixedly connected with the chain of the secondary propulsion cylinder 220, and the other end of the chain of the secondary propulsion cylinder 220 is connected with the primary propulsion cylinder 130.
In an alternative to this embodiment, it is preferable that,
one end of the guide plate 210, which is far away from the primary propulsion stroke, is provided with a buffer device, and the buffer device can effectively avoid rigid collision between the guide plate 210 and the front fixing plate 111 after the secondary propulsion stroke reaches the limit position, thereby prolonging the service life of the mechanism.
Further, the damping means is provided as a piece of a damper spring. When the guide plate 210 is about to reach the limit position, the damping spring may effectively slow down the advancing speed of the guide plate 210, and finally stop the guide plate 210 without colliding with the front fixing plate 111.
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 (9)
1. An airborne jumbolter, comprising: a primary propulsion mechanism (100) and a secondary propulsion mechanism (200);
the primary advancing mechanism (100) comprises a guide frame (110), the guide frame (110) can extend or retract along the advancing direction, and the guide frame (110) is provided with a sliding path parallel to the advancing direction;
the secondary propulsion mechanism (200) comprises a guide plate (210), and the guide plate (210) is connected with the guide frame (110) in a sliding manner; the secondary propulsion mechanism (200) can extend or retract along the sliding path under the guiding action of the guide plate (210).
2. An on-board roofbolter according to claim 1,
the guide frame (110) comprises a front fixing plate (111), a rear fixing plate (112), a primary sliding rod group (113) and a secondary sliding rod group (114), wherein the primary sliding rod group and the secondary sliding rod group are positioned between the front fixing plate (111) and the rear fixing plate (112), and the extension directions of the primary sliding rod group and the secondary sliding rod group are parallel to the propulsion direction;
the secondary slide bar group (114) is positioned above the primary slide bar group (113), and the guide plate (210) is sleeved on the secondary slide bar group (114).
3. An on-board roofbolter according to claim 2,
the primary propulsion mechanism (100) further comprises a fixed frame body (120) and a primary propulsion oil cylinder (130);
the two ends of the fixed frame body (120) along the pushing direction are respectively a first end and a second end, the pushing direction of the guide frame (110) is the direction in which the first end points to the second end, and the retracting direction of the guide frame (110) is the direction in which the second end points to the first end;
one end of the primary propulsion oil cylinder (130) is connected to the front fixing plate (111) of the guide frame (110), and the other end of the primary propulsion oil cylinder is connected to the first end of the fixing frame body (120).
4. An on-board roofbolter according to claim 3,
the fixing frame body (120) comprises a bottom plate (121) and a guide rail seat (122);
the primary slide bar group (113) is connected with the guide rail seat (122) in a sliding manner.
5. An on-board roofbolter according to claim 4,
a limiting block (123) is arranged on the bottom plate (121), and a support ring (140) is arranged on the primary sliding rod group (113);
the limiting block (123) is arranged at a position close to the first end of the fixing frame body (120);
the support ring (140) moves between the limiting block (123) and the guide rail seat (122).
6. An on-board roofbolter according to claim 3,
the secondary propulsion mechanism further comprises a secondary propulsion oil cylinder (220);
one end of the secondary propulsion oil cylinder (220) is fixedly connected with the guide plate (210), and the other end of the secondary propulsion oil cylinder is fixedly connected with the rear fixing plate (112).
7. An on-board roofbolter according to claim 6,
the device further comprises an actuating mechanism, wherein the actuating mechanism comprises a pulley (300) and a power head (400);
the pulley (300) is slidably mounted on the secondary sliding rod group (114);
the power head (400) is fixedly connected to the trolley (300).
8. An on-board roofbolter according to claim 7,
the two-stage propulsion oil cylinder (220) is a double-chain multiplication oil cylinder.
9. An on-board roofbolter according to claim 8,
the pulley (300) is fixedly connected with one end of a chain of the secondary propulsion oil cylinder (220), and the other end of the chain of the secondary propulsion oil cylinder (220) is connected with the primary propulsion oil cylinder (130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021538996.9U CN212671577U (en) | 2020-07-29 | 2020-07-29 | Airborne jumbolter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021538996.9U CN212671577U (en) | 2020-07-29 | 2020-07-29 | Airborne jumbolter |
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| CN212671577U true CN212671577U (en) | 2021-03-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090196A (en) * | 2021-04-30 | 2021-07-09 | 中煤科工开采研究院有限公司 | Jumbolter and jumbolter carriage |
| CN113685139A (en) * | 2021-08-27 | 2021-11-23 | 中国煤炭科工集团太原研究院有限公司 | Positioning guide device and anchor rod drill carriage |
-
2020
- 2020-07-29 CN CN202021538996.9U patent/CN212671577U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090196A (en) * | 2021-04-30 | 2021-07-09 | 中煤科工开采研究院有限公司 | Jumbolter and jumbolter carriage |
| CN113685139A (en) * | 2021-08-27 | 2021-11-23 | 中国煤炭科工集团太原研究院有限公司 | Positioning guide device and anchor rod drill carriage |
| CN113685139B (en) * | 2021-08-27 | 2023-09-19 | 中国煤炭科工集团太原研究院有限公司 | Positioning guide device and anchor rod drill carriage |
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