CN221002737U - Pick holder for heading machine - Google Patents
Pick holder for heading machine Download PDFInfo
- Publication number
- CN221002737U CN221002737U CN202322676557.4U CN202322676557U CN221002737U CN 221002737 U CN221002737 U CN 221002737U CN 202322676557 U CN202322676557 U CN 202322676557U CN 221002737 U CN221002737 U CN 221002737U
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- Prior art keywords
- pick
- rack
- holder
- fixedly connected
- wall
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- 238000001125 extrusion Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 abstract description 8
- 239000008187 granular material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model belongs to the technical field of heading machines, and discloses a cutting pick holder for a heading machine. This pick toothholder for entry driving machine, including the toothholder body, offer the mounting hole that is used for installing the pick in the toothholder body, the upper surface fixedly connected with of toothholder body is sealed to fill up first, and the lower surface fixedly connected with fixed base of toothholder body has offered in the fixed base with mounting hole assorted through-hole. This pick holder for entry driving machine can accomplish sealedly automatically after the pick installation, need not to use other appurtenance cooperation can accomplish the sealedly between pick and the holder, prevents debris and granule entering and causes the influence between pick and the holder to guarantee life and the work efficiency of pick and holder, solved the problem that proposes among the background art.
Description
Technical Field
The utility model relates to the technical field of heading machines, in particular to a cutting pick holder for a heading machine.
Background
The development machine is mechanical equipment for underground engineering, is mainly used for excavating tunnels, mines, underground pipelines and the like, is generally composed of a powerful propulsion system and an excavating head, can perform efficient excavating operation underground, plays an important role in underground engineering, and can improve working efficiency and reduce labor cost.
The cutting system component of the head of the development machine is particularly important in the use process, and generally consists of a cutting pick and a tooth holder, the tooth holder provides support and the cutting pick is used for cutting by installing the cutting pick in the tooth holder, certain scraps and sundries can enter a gap between the cutting pick and the tooth holder when the existing tooth holder is installed and used, and the cutting pick is worn with the tooth holder due to long-term high-load operation, so that the gap is increased, the service life and the working efficiency of the cutting pick and the tooth holder are affected, and therefore, the tooth holder for the development machine is designed.
Disclosure of utility model
The utility model aims to provide a cutting pick holder for a heading machine, which can seal a gap between a cutting pick and the holder after the cutting pick is installed, prevent chips and sundries from entering the holder to cause influence, and solve the problems in the background art.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the pick holder for the heading machine comprises a holder body, wherein a mounting hole for mounting the pick is formed in the holder body, a first sealing pad is fixedly connected to the upper surface of the holder body, a fixed base is fixedly connected to the lower surface of the holder body, and a through hole matched with the mounting hole is formed in the fixed base;
the inner wall of through-hole has seted up the ring channel, sliding connection has the bottom plate in the ring channel, the inner wall fixedly connected with second sealed pad of bottom plate, the lower surface fixedly connected with first rack of bottom plate, the interior bottom wall sliding connection of ring channel has the second rack, still swing joint has the drive wheel between the front and back inner wall of ring channel, and the drive wheel meshes with first rack and second rack respectively, the one end fixedly connected with extrusion piece of ring channel is kept away from to the second rack.
Through the technical scheme, the cutting pick can be automatically sealed when being installed, the gap between the cutting pick and the tooth holder body is sealed, dust and particles are prevented from entering the gap, the service life and the working efficiency of the cutting pick and the tooth holder body are affected, and meanwhile, the normal work, the installation and the disassembly of the cutting pick are not affected.
Preferably, the cross section of the extrusion block is in a right trapezoid shape, and the extrusion block extends out of the annular groove and is positioned in the through hole.
Through the technical scheme, the design of the extrusion block enables the cutting pick to be automatically extruded into the annular groove when being inserted, so that sealing action is carried out.
Preferably, one end of the first rack away from the driving wheel is fixedly connected with an extension spring, and the other end of the extension spring is contacted with the inner wall of the annular groove.
Through the technical scheme, when the cutting pick is disassembled, the extension spring resets to drive the bottom plate to reset, so that the sealing effect of the follow-up cutting pick during installation is not affected.
Preferably, the number of the bottom plates and the number of the second sealing gaskets are two and arc-shaped, and the shape formed by the two bottom plates is round and is matched with the mounting hole.
Preferably, the first rack and the second rack are in diagonal design, the second rack is positioned in the annular groove, and the bottom plate is movably connected with the inner top wall of the annular groove.
Through the technical scheme, the second rack and the first rack can move relatively through the driving wheel, and the extrusion block retracts and the bottom plate is sealed.
By adopting the technical scheme, the utility model has the beneficial effects that:
1. This pick holder for entry driving machine can accomplish sealedly automatically after the pick installation, need not to use other appurtenance cooperation can accomplish the sealedly between pick and the holder, prevents debris and granule entering and causes the influence between pick and the holder to guarantee life and the work efficiency of pick and holder, solved the problem that proposes among the background art.
2. This pick holder for entry driving machine, simple structure, simple operation seal when carrying out the pick installation automatically, can remove sealing state when the pick is dismantled, do not influence the installation dismantlement and the operating condition of pick, and is very simple and convenient.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a front cross-sectional view of the present utility model;
fig. 3 is an enlarged view of fig. 2a in accordance with the present utility model.
In the figure: 1 tooth holder body, 2 mounting holes, 3 first sealing pads, 4 fixed bases, 5 annular grooves, 6 bottom plates, 7 second sealing pads, 8 first racks, 9 second racks, 10 driving wheels, 11 extrusion blocks, 12 extension springs and 13 through holes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present utility model provides a technical solution: the pick holder for the heading machine comprises a holder body, wherein a mounting hole 2 for mounting the pick is formed in the holder body 1, a first sealing pad 3 is fixedly connected to the upper surface of the holder body 1, a fixed base 4 is fixedly connected to the lower surface of the holder body 1, and a through hole 13 matched with the mounting hole 2 is formed in the fixed base 4;
The inner wall of the through hole 13 is provided with an annular groove 5, the annular groove 5 is connected with a bottom plate 6 in a sliding manner, the inner wall of the bottom plate 6 is fixedly connected with a second sealing gasket 7, the lower surface of the bottom plate 6 is fixedly connected with a first rack 8, the inner bottom wall of the annular groove 5 is connected with a second rack 9 in a sliding manner, a driving wheel 10 is further movably connected between the front inner wall and the rear inner wall of the annular groove 5, the driving wheel 10 is respectively meshed with the first rack 8 and the second rack 9, and one end, far away from the annular groove 5, of the second rack 9 is fixedly connected with an extrusion block 11.
Through the technical scheme, the cutting pick can be automatically sealed when being installed, the gap between the cutting pick and the tooth holder body 1 is sealed, dust and particles are prevented from entering the gap, the service life and the working efficiency of the cutting pick and the tooth holder body 1 are affected, and meanwhile, the normal work, the installation and the disassembly of the cutting pick are not affected.
Preferably, the cross section of the extrusion block 11 is in a right trapezoid shape, and the extrusion block 11 extends out of the annular groove 5 and is positioned in the through hole 13.
Through the technical scheme, the design of the extrusion block 11 automatically extrudes the cutting pick into the annular groove 5 when the cutting pick is inserted, so that the cutting pick performs sealing action.
Preferably, one end of the first rack 8 far away from the driving wheel 10 is fixedly connected with an extension spring 12, and the other end of the extension spring 12 is contacted with the inner wall of the annular groove 5.
Through the technical scheme, when the cutting pick is disassembled, the extension spring 12 resets to drive the bottom plate 6 to reset, so that the sealing effect of the subsequent cutting pick during installation is not affected.
Preferably, the number of the bottom plates 6 and the second sealing gaskets 7 is two and the two bottom plates 6 are arc-shaped, and the two bottom plates 6 are round and are matched with the mounting holes 2.
Preferably, the first rack 8 and the second rack 9 are diagonally designed, the second rack 9 is positioned in the annular groove 5, and the bottom plate 6 is movably connected with the inner top wall of the annular groove 5.
Through the technical scheme, the second rack 9 and the first rack 8 can relatively move through the driving wheel 10, the extrusion block 11 is retracted, and the bottom plate 6 is sealed.
This pick for entry driving machine toothholder during operation, install the pick in the toothholder body 1 through mounting hole 2, the top extrusion first sealed pad 3 of pick and seal the top in clearance between pick and the toothholder body 1 through first sealed pad 3, the bottom of pick passes through the through-hole 13 in the fixed base 4 and drives extrusion piece 11 and inwards move this moment, through the cooperation of second rack 9, first rack 8 and drive wheel 10, bottom plate 6 relative movement and make the surface of pick is hugged closely to second sealed pad 7, seal the bottom in clearance between pick and the toothholder body 1, can accomplish the seal between pick and the toothholder body 1, can effectively prevent dust and granule entering the toothholder body 1 and cause the injury, and simple structure is suitable for the popularization simultaneously.
It is noted that 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. Moreover, 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.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Pick holder for entry driving machine, including the holder body, its characterized in that: the tooth holder comprises a tooth holder body, wherein a mounting hole for mounting a cutting pick is formed in the tooth holder body, a first sealing pad is fixedly connected to the upper surface of the tooth holder body, a fixed base is fixedly connected to the lower surface of the tooth holder body, and a through hole matched with the mounting hole is formed in the fixed base;
the inner wall of through-hole has seted up the ring channel, sliding connection has the bottom plate in the ring channel, the inner wall fixedly connected with second sealed pad of bottom plate, the lower surface fixedly connected with first rack of bottom plate, the interior bottom wall sliding connection of ring channel has the second rack, still swing joint has the drive wheel between the front and back inner wall of ring channel, and the drive wheel meshes with first rack and second rack respectively, the one end fixedly connected with extrusion piece of ring channel is kept away from to the second rack.
2. A pick holder for a heading machine as defined in claim 1, wherein: the cross section of the extrusion block is in a right trapezoid shape, and the extrusion block extends out of the annular groove and is positioned in the through hole.
3. A pick holder for a heading machine as defined in claim 2, wherein: one end of the first rack, which is far away from the driving wheel, is fixedly connected with an extension spring, and the other end of the extension spring is contacted with the inner wall of the annular groove.
4. A pick holder for a heading machine as defined in claim 3, wherein: the number of the bottom plates and the number of the second sealing gaskets are two, the two bottom plates are arc-shaped, and the two bottom plates are round and are matched with the mounting holes.
5. A pick holder for a heading machine as defined in claim 4, wherein: the first rack and the second rack are in diagonal design, the second rack is positioned in the annular groove, and the bottom plate is movably connected with the inner top wall of the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322676557.4U CN221002737U (en) | 2023-10-07 | 2023-10-07 | Pick holder for heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322676557.4U CN221002737U (en) | 2023-10-07 | 2023-10-07 | Pick holder for heading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221002737U true CN221002737U (en) | 2024-05-24 |
Family
ID=91112985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322676557.4U Active CN221002737U (en) | 2023-10-07 | 2023-10-07 | Pick holder for heading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221002737U (en) |
-
2023
- 2023-10-07 CN CN202322676557.4U patent/CN221002737U/en active Active
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