CN212744035U - Reaction force arm device for fastening anchor rod - Google Patents
Reaction force arm device for fastening anchor rod Download PDFInfo
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- CN212744035U CN212744035U CN202021352296.0U CN202021352296U CN212744035U CN 212744035 U CN212744035 U CN 212744035U CN 202021352296 U CN202021352296 U CN 202021352296U CN 212744035 U CN212744035 U CN 212744035U
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Abstract
The utility model relates to a colliery stock fastening field specifically is a reaction force arm device for fastening stock. The device comprises a fixed seat fixed on a shell of the torque multiplier, a force arm rod movably connected on the fixed seat, and a support rod movably connected with the force arm rod through a connecting block. The support rod can be fixed on the fastened anchor rod, and resistance for preventing the force arm rod from rotating is provided for the force arm rod through the connecting block; simultaneously, the support rod and the arm-of-force rod can be freely adjusted through the connecting block to adapt to the size between the support rod and the arm-of-force rod, so that the support rod can provide service for the fastening work of a plurality of anchor rods on the periphery through the arm-of-force rod after being fixed. Therefore, when a coal mine worker fastens the anchor rod, the torque moment for preventing the shell of the torque multiplier from rotating can be provided very conveniently and quickly.
Description
Technical Field
The utility model relates to a colliery stock fastening field specifically is a reaction force arm device for fastening stock.
Background
In the coal mine production process, the anchor rod plays the effect of consolidating the tunnel country rock, and wherein the fastening degree direct influence of anchor rod is its reinforcement effect. In order to improve the fastening degree of the anchor rod, a coal miner commonly adopts a torque multiplier to fasten the nut of the anchor rod. When using the torque multiplier, it is necessary to prevent the outer shell from rotating, and then the strong torque can be transmitted to the bolt nut. Existing torque multipliers are generally equipped with a reaction moment arm, but it is difficult to find a suitable support point for providing resistance against rotation due to the moment arm. Therefore, in actual work, coal miners generally fix one end of the crowbar in the gap of the surrounding rock of the roadway, fix the other end of the crowbar by hands, and clamp the reaction force arm of the torque multiplier by the middle part of the crowbar so as to prevent the rotation of the crowbar. The fixing mode is time-consuming and labor-consuming, certain potential safety hazards exist, and a counterforce arm device for fastening the anchor rod, which can provide a supporting point conveniently and quickly, needs to be developed urgently.
Disclosure of Invention
In view of this, the utility model provides a reaction force arm device for fastening stock. The device comprises a fixed seat fixed on a shell of the torque multiplier, a force arm rod movably connected on the fixed seat, and a support rod movably connected with the force arm rod through a connecting block. The support rod can be fixed on the fastened anchor rod, and resistance for preventing the force arm rod from rotating is provided for the force arm rod through the connecting block; simultaneously, the support rod and the arm-of-force rod can be freely adjusted through the connecting block to adapt to the size between the support rod and the arm-of-force rod, so that the support rod can provide service for the fastening work of a plurality of anchor rods on the periphery through the arm-of-force rod after being fixed. Therefore, when a coal mine worker fastens the anchor rod, the torque moment for preventing the shell of the torque multiplier from rotating can be provided very conveniently and quickly.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a reaction arm device for fastening a bolt, comprising:
a torque multiplier for providing a torque to tighten the anchor;
the fixing seat is fixed with the torque multiplier shell and used for preventing the torque multiplier shell from rotating;
the force arm rod is cylindrical, the length of the force arm rod is not less than 1500mm, and the first end of the force arm rod is connected with the fixed seat and used for providing torque for preventing the fixed seat from rotating along with the torque multiplier; the second end of the connecting rod is connected with the connecting block; and
the bracing piece is cylindricly, and its length is not less than 300mm, its diameter with the diameter of arm of force pole is the same, and its first end is together fixed with the stock that has fastened, and its second end passes through the connecting block with the second end of arm of force pole links together for provide and prevent that arm of force pole from following fixing base pivoted resistance.
Further, the fixing base further includes:
a circular sleeve fixed with the torque multiplier housing; and
and the arm-force rod joint is integrally formed or welded in the middle of the outer circumference of the circular sleeve and is connected with the arm-force rod.
Further, the arm of force lever joint still includes:
the joint blind hole is cylindrical, the diameter of the joint blind hole is adaptive to that of the arm lever, the depth of the joint blind hole is not less than 30mm, the joint blind hole is arranged on the left side surface of the arm lever joint, and the axis of the joint blind hole is perpendicular to the axis of the circular sleeve in the same plane; the joint blind hole is matched with the first end of the arm lever;
the first positioning hole is cylindrical and penetrates through the upper side surface, the lower side surface and the joint blind hole of the arm lever; the axis of the connector is vertical to the axis of the connector blind hole in the same plane; and
the positioning pin is cylindrical, the diameter and the length of the positioning pin are matched with those of the first positioning hole, and the positioning pin is matched with the first positioning hole.
Further, the arm of force pole still includes:
the second positioning hole is cylindrical, has the same diameter as the first positioning hole, and penetrates through the circumferential surface of the arm lever; the axis of the force arm rod is vertical to the axis of the force arm rod in the same plane; the second positioning hole is matched with the first positioning hole through the positioning pin.
Further, the support rod further comprises:
the length of the fixing nut is not less than 30mm, and the inner circumferential surface of the fixing nut is provided with an internal thread which is matched with the anchor rod and is screwed together with the fastened anchor rod; the fixing nut is integrally formed or welded at the first end of the supporting rod, and the axis of the fixing nut coincides with the axis of the supporting rod.
Further, the connecting block further comprises:
the first connecting through hole is cylindrical, penetrates through the whole connecting block, has a diameter which is matched with that of the arm lever, and is sleeved on the second end of the arm lever in a sliding manner; and
the second connecting through hole is cylindrical, penetrates through the whole connecting block, has a diameter matched with that of the supporting rod, and is sleeved on the second end of the supporting rod in a sliding manner; and the axis of the second connecting through hole is perpendicular to the different plane of the axis of the first connecting through hole and is not communicated with the first connecting through hole.
Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:
the utility model provides a fastening is reaction force arm device for stock, includes torsion multiplier, fixing base, power armed lever, bracing piece and connecting block. Wherein the torque multiplier is used for providing torque for fastening the anchor rod. And the fixing seat is fixed with the torque multiplier shell and used for preventing the torque multiplier shell from rotating. The force arm rod is cylindrical, the length of the force arm rod is not less than 1500mm, and the first end of the force arm rod is connected with the fixed seat and used for providing torque for preventing the fixed seat from rotating along with the torque multiplier; the second end of the connecting rod is connected with the connecting block. The bracing piece is cylindricly, and its length is not less than 300mm, its diameter with the diameter of arm of force pole is the same, and the fixation nut of its first end is in the same place with the stock that has fastened, and its second end links together through the second end of connecting block with the arm of force pole for provide and prevent that the arm of force pole from following fixing base pivoted resistance.
When in use, firstly, the fixing nut at the first end of the supporting rod is screwed on the fastened anchor rod; assembling the first end of the arm-force rod and the fixed seat together, and sleeving the first connecting through hole of the connecting block on the second end of the arm-force rod; then, sleeving a second connecting through hole of the connecting block on the second end of the supporting rod; and finally, the matching position of the first connecting through hole of the connecting block and the force arm rod and the matching position of the second connecting through hole and the supporting rod are adjusted according to the position of the anchor rod required to be fastened by the torque multiplier.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: after the supporting rod of the device is fixed, the matching size of the supporting rod and the force arm rod can be freely adjusted through the connecting block in active connection, and service is provided for fastening work of a plurality of anchor rods on the periphery. Therefore, the device can conveniently and quickly provide the torque for preventing the shell of the torque multiplier from rotating for the anchor rod fastening work in the coal mine production process.
The above description is only illustrative of the technical solutions and not restrictive.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive effort.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the three-dimensional structure of the fixing base of the present invention;
FIG. 3 is a schematic view of the three-dimensional structure of the positioning pin of the present invention;
FIG. 4 is a schematic view of the three-dimensional structure of the arm lever of the present invention;
FIG. 5 is a schematic view of the three-dimensional structure of the support rod of the present invention;
fig. 6 is a schematic view of another perspective three-dimensional structure of the support rod of the present invention;
fig. 7 is a schematic view of the three-dimensional structure of the connecting block of the present invention;
fig. 8 is a schematic structural view of the manner of fitting the anchor rod of the present invention;
fig. 9 is a schematic structural view of another matching manner of the present invention and the anchor rod;
description of reference numerals:
10-a torque multiplier; 20-a fixed seat, 21-a circular sleeve, 22-a force arm rod connector, 221-a connector blind hole, 222-a first positioning hole and 223-a positioning pin; 30-arm lever, 31-second positioning hole; 40-support rod, 41-fixed nut; 50-connecting block, 51-first connecting through hole, 52-second connecting through hole; 60-anchor rod.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system architectures and techniques, in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
The utility model provides a pair of reaction force arm device for fastening stock can know according to description figure 1, a reaction force arm device for fastening stock, including torsion multiplier 10, fixing base 20, power armed lever 30, bracing piece 40 and connecting block 50. Wherein the torque multiplier 10 is used to provide a torque for tightening the anchor 60. The fixing seat 20 is fixed with the housing of the torque multiplier 10 for preventing the housing of the torque multiplier 10 from rotating. The arm lever 30 is cylindrical, the length of the arm lever is not less than 1500mm, and the first end of the arm lever is connected with the fixed seat 20 and used for providing torque for preventing the fixed seat 20 from rotating along with the torque multiplier 10; and a second end thereof is connected to the connection block 50. The support rod 40 is cylindrical, has a length not less than 300mm, has a diameter equal to that of the arm lever 30, has a first end fixed to the already fastened anchor rod 60, and has a second end connected to the second end of the arm lever 30 through the connecting block 50, so as to provide resistance for preventing the arm lever 30 from rotating along with the fixing base 20.
As an example, as shown in fig. 1 and 2, the fixing base 20 further includes a circular sleeve 21 and a force arm lever joint 22. Wherein the circular sleeve 21 is fixed with the housing of the torque multiplier 10. Spline teeth can be arranged on the inner circumferential surface of the circular sleeve 21 and are matched with the spline grooves and the shell of the torsion multiplier 10; or the circular sleeve 21 may also be welded to the torque multiplier 10 housing. The arm lever joint 22 is integrally formed or welded at the middle of the outer circumferential surface of the circular sleeve 21 and is connected with the arm lever 30.
In this embodiment, as shown in fig. 1 to 3, the arm joint further includes a joint blind hole 221, a first positioning hole 222, and a positioning pin 223. The joint blind hole 221 is cylindrical, the diameter of the joint blind hole is matched with that of the arm lever 30, the depth of the joint blind hole is not less than 30mm, the joint blind hole is arranged on the left side surface of the arm lever joint 22, and the axis of the joint blind hole is perpendicular to the axis of the circular sleeve 21 in the same plane; the joint blind hole 221 is fitted with the first end of the arm lever 30. This ensures that the moment provided by the arm-of-force lever 30 always acts along a radial section of the circular sleeve 21 to improve the stability of the operation of the device. The first positioning hole 222 is cylindrical and penetrates through the upper side surface and the lower side surface of the arm lever 30 and the joint blind hole 221; the axis of the connector is perpendicular to the axis of the blind joint hole 221 in the same plane. The positioning pin 223 has a cylindrical shape, a diameter and a length corresponding to those of the first positioning hole 222, and is fitted with the first positioning hole 222. The positioning pin 223 is only subjected to radial shearing force, but is not subjected to load in the axial direction, so that the positioning pin is not easy to fall off when the arm lever joint 22 and the arm lever 30 are acted.
In this embodiment, as shown in fig. 2 to 4, the arm lever 30 further includes a cylindrical second positioning hole 31, which has the same diameter as the first positioning hole 222 and penetrates through the circumferential surface of the arm lever 30; the axis of the arm lever is perpendicular to the axis of the arm lever 30 in the same plane. The second positioning hole 31 is matched with the first positioning hole 222 through the positioning pin 223, and the arm-of-force lever 30 and the fixed seat 20 are in a movable connection structure, so that the device is convenient to assemble, disassemble and store.
In this embodiment, as shown in fig. 8 and 9 in conjunction with fig. 5 and 6, the support rod 40 further includes a fixing nut having a length of not less than 30mm, and having an internal thread formed on an inner circumferential surface thereof to correspond to the anchor bar 60 and screwed with the already fastened anchor bar 60. The fixing nut is integrally formed or welded at the first end of the support rod 40, and the axis of the fixing nut coincides with the axis of the support rod 40, so that the support rod 40 is always coaxially arranged with the fastened anchor rod 60, and the fitting dimension of the arm lever 30 can be conveniently adjusted through the connecting block 50.
In this embodiment, as shown in fig. 1 and 7, the connection block 50 further includes a first connection through hole 51 and a second connection through hole 52. The first connecting through hole 51 is cylindrical and penetrates through the whole connecting block 50, the diameter of the first connecting through hole is matched with that of the arm lever 30, and the first connecting through hole is sleeved on the second end of the arm lever 30 in a sliding mode. The second connecting through hole 52 is cylindrical and penetrates through the whole connecting block 50, the diameter of the second connecting through hole is matched with that of the supporting rod 40, and the second connecting through hole is sleeved on the second end of the supporting rod 40 in a sliding manner; meanwhile, the axis of the second connecting through hole 52 is perpendicular to the plane different from the axis of the first connecting through hole 51, and does not communicate with the first connecting through hole 51. The arm-force rod 30 and the support rod 40 which are crossed in different planes can slide freely along the first connecting through hole 51 and the second connecting through hole 52 respectively, so that the matching size of the arm-force rod 30 and the support rod 40 can be adjusted conveniently and quickly.
It is noted that, in the present patent application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," comprising, "or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus, and the phrase" comprising a.once.a.limited element does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; 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 technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (6)
1. A reaction arm device for fastening an anchor rod, comprising:
a torque multiplier for providing a torque to tighten the anchor;
the fixing seat is fixed with the torque multiplier shell and used for preventing the torque multiplier shell from rotating;
the force arm rod is cylindrical, the length of the force arm rod is not less than 1500mm, and the first end of the force arm rod is connected with the fixed seat and used for providing torque for preventing the fixed seat from rotating along with the torque multiplier; the second end of the connecting rod is connected with the connecting block; and
the bracing piece is cylindricly, and its length is not less than 300mm, its diameter with the diameter of arm of force pole is the same, and its first end is together fixed with the stock that has fastened, and its second end passes through the connecting block with the second end of arm of force pole links together for provide and prevent that arm of force pole from following fixing base pivoted resistance.
2. A reaction arm arrangement for securing a rock bolt according to claim 1, wherein the anchor block further includes:
a circular sleeve fixed with the torque multiplier housing; and
and the arm-force rod joint is integrally formed or welded in the middle of the outer circumferential surface of the circular sleeve and is connected with the arm-force rod.
3. A reaction arm device for securing a rock bolt according to claim 2, wherein the arm lever joint further comprises:
the joint blind hole is cylindrical, the diameter of the joint blind hole is adaptive to that of the arm lever, the depth of the joint blind hole is not less than 30mm, the joint blind hole is arranged on the left side surface of the arm lever joint, and the axis of the joint blind hole is perpendicular to the axis of the circular sleeve in the same plane; the joint blind hole is matched with the first end of the arm lever;
the first positioning hole is cylindrical and penetrates through the upper side surface, the lower side surface and the joint blind hole of the arm lever; the axis of the connector is vertical to the axis of the connector blind hole in the same plane; and
the positioning pin is cylindrical, the diameter and the length of the positioning pin are matched with those of the first positioning hole, and the positioning pin is matched with the first positioning hole.
4. A reaction arm device for securing a rock bolt according to claim 3, wherein the force arm lever further includes:
the second positioning hole is cylindrical, has the same diameter as the first positioning hole, and penetrates through the circumferential surface of the arm lever; the axis of the force arm rod is vertical to the axis of the force arm rod in the same plane; the second positioning hole is matched with the first positioning hole through the positioning pin.
5. A reaction arm device for securing a rock bolt according to claim 4, wherein the support rod further includes:
the length of the fixing nut is not less than 30mm, and the inner circumferential surface of the fixing nut is provided with an internal thread which is matched with the anchor rod and is screwed together with the fastened anchor rod; the fixing nut is integrally formed or welded at the first end of the supporting rod, and the axis of the fixing nut coincides with the axis of the supporting rod.
6. A reaction arm device for securing a rock bolt according to claim 5, wherein the connecting block further includes:
the first connecting through hole is cylindrical, penetrates through the whole connecting block, has a diameter which is matched with that of the arm lever, and is sleeved on the second end of the arm lever in a sliding manner; and
the second connecting through hole is cylindrical, penetrates through the whole connecting block, has a diameter matched with that of the supporting rod, and is sleeved on the second end of the supporting rod in a sliding manner; and the axis of the second connecting through hole is perpendicular to the different plane of the axis of the first connecting through hole and is not communicated with the first connecting through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021352296.0U CN212744035U (en) | 2020-07-10 | 2020-07-10 | Reaction force arm device for fastening anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021352296.0U CN212744035U (en) | 2020-07-10 | 2020-07-10 | Reaction force arm device for fastening anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212744035U true CN212744035U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021352296.0U Active CN212744035U (en) | 2020-07-10 | 2020-07-10 | Reaction force arm device for fastening anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212744035U (en) |
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2020
- 2020-07-10 CN CN202021352296.0U patent/CN212744035U/en active Active
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