CN211145050U - Tunnel tipper middle rear wheel hub bolt with high fixity - Google Patents
Tunnel tipper middle rear wheel hub bolt with high fixity Download PDFInfo
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- CN211145050U CN211145050U CN201922162497.8U CN201922162497U CN211145050U CN 211145050 U CN211145050 U CN 211145050U CN 201922162497 U CN201922162497 U CN 201922162497U CN 211145050 U CN211145050 U CN 211145050U
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Abstract
A rear wheel hub bolt in a tunnel dump truck with high tightness comprises a screw body, a screw head arranged at the upper end of the screw body and external threads arranged on the outer wall of the screw body, wherein a hexagonal clamping groove is formed in the center of the upper surface of the screw head, and a dismounting hole is formed in the lower surface of the screw body; a supporting column is screwed in the dismounting hole, and the hardness of the supporting column material is greater than that of the screw body material; the upper surface of the supporting column and the inner wall of the dismounting hole are enclosed to form a fastening chamber; a limiting groove is formed at the bottom of the hexagonal clamping groove; the limiting groove is communicated with the fastening cavity through a lifting hole; the diameter of the lifting hole is smaller than that of the limiting groove, and a limiting step is formed between the limiting groove and the lifting hole. The utility model discloses a steadiness when rear wheel hub bolt can guarantee the bolt spiro union in the at utmost in the gallery tipper with high fixity, the condition that rear wheel hub is not hard up or drops in effectively avoiding appearing the bolt not hard up leading to stops the potential safety hazard.
Description
Technical Field
The utility model relates to a bolt, especially a rear wheel hub bolt in gallery tipper with high leakproofness.
Background
The tunnel dumper is a vehicle used in a tunnel environment and is mainly used for unloading goods, so that the tunnel dumper can frequently run on a bumpy road section, at the moment, a middle rear wheel of the tunnel dumper inevitably vibrates, bolts arranged on hubs of the middle rear wheel are also influenced by vibration force, when the bolts vibrate, the bolts are easily loosened outwards along the track of screw holes in wheel frames, when the bolts are loosened, the hubs of the middle rear wheel are difficult to fasten on the wheel frames, the hubs of the middle rear wheel shake, and in a serious situation, the situation that the hubs of the middle rear wheel fall off even in the running process is possible, the personal safety of the running personnel and the personal safety of peripheral personnel are damaged, and serious potential safety hazards exist.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a rear wheel hub bolt in gallery tipper with high fixity, steadiness when it can guarantee the bolt spiro union in the at utmost, the condition that rear wheel hub is not hard up or drops in effectively avoiding appearing the bolt not hard up leading to, stops the potential safety hazard.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model discloses a rear wheel hub bolt in gallery tipper with high fixity, including the spiral shell body, locate the spiral shell head of spiral shell body upper end and locate the external screw thread on the spiral shell body outer wall, spiral shell head upper surface center is equipped with hexagonal draw-in groove, its characterized in that: the lower surface of the screw body is provided with a dismounting hole; a supporting column is screwed in the dismounting hole, and the hardness of the supporting column material is greater than that of the screw body material; the upper surface of the supporting column and the inner wall of the dismounting hole are enclosed to form a fastening chamber; a limiting groove is formed at the bottom of the hexagonal clamping groove; the limiting groove is communicated with the fastening cavity through a lifting hole; the diameter of the lifting hole is smaller than that of the limiting groove, and a limiting step is formed between the limiting groove and the lifting hole; a lifting shaft matched with the lifting hole is arranged in the lifting hole; the upper end of the lifting shaft is hinged with a rotating block positioned in the limiting groove, and the diameter of the rotating block is the same as that of the lifting shaft; the left side and the right side of the rotating block are provided with mutually symmetrical limiting wings, and the limiting wings are clamped on the limiting steps; the inner walls of the front side and the rear side of the upper part of the lifting hole are provided with clamping grooves matched with the limiting wings, and the notch at the upper end of each clamping groove is flush with the orifice at the upper end of the lifting hole; the lower end of the lifting shaft penetrates into the fastening cavity downwards and is provided with a lifting plate; a spring sleeved outside the lifting shaft is arranged between the lifting plate and the upper side cavity wall of the fastening cavity, and the spring is in a compressed state; waist-shaped holes which are symmetrical to each other are formed in the left side and the right side of the lifting plate; swing holes communicated with the fastening chamber are formed in the left side and the right side of the upper part of the screw body; the middle part of the swinging hole is hinged with a fastening rod; the outer end of the fastening rod extends out of the screw body and is provided with a latch, and the inner end of the fastening rod extends into the fastening cavity and is connected with the lifting plate through a sliding rod arranged in the waist-shaped hole; the slide bar is attached to the wall of one side hole adjacent to the lifting shaft.
The upper end of the rotating block is provided with a lifting hole; the rotating block is internally provided with an embedded groove, the center of the lower surface of the rotating block is provided with a rotating hole communicated with the embedded groove, and the diameter of the rotating hole is smaller than that of the embedded groove; an embedded block matched with the embedded groove is arranged in the embedded groove; a rotating rod matched with the rotating hole is arranged in the rotating hole; the inserted block is connected with the lifting shaft through a rotating rod.
The lower surface of the lifting shaft is provided with a guide hole; a guide rod coaxial with the guide hole is arranged in the center of the upper surface of the support column, and the upper end of the guide rod extends into the guide hole; and a lifting space is formed between the end surface of the upper end of the guide rod and the bottom of the guide hole.
The upper surface of the support column is provided with a limiting pipe, and the limiting pipe is sleeved outside the lower part of the guide rod.
The upper end face of the limiting pipe is provided with a rubber pad.
The lower end of the orifice at the inner side of the swing hole is provided with an inclined plane notch communicated with the swing hole.
The utility model has the advantages that:
compared with the prior art, the rear wheel hub bolt in the tunnel dumper with high tightness adopting the structure of the utility model can lead the outer end of the fastening rod to extend outwards through the rotating block when the bolt is screwed in the screw hole of the wheel frame, and finally the latch arranged on the outer end of the fastening rod is tightly pressed on the internal thread of the screw hole of the wheel frame, at the moment, the position of the bolt can be effectively limited by the block between the latch and the internal thread of the screw hole of the wheel frame, and only the limiting wings at the left side and the right side of the rotating block are clamped on the limiting steps, so that the latch can be guaranteed to be always tightly pressed on the internal thread of the screw hole of the wheel frame, even if the bolt has vibration, under the action of the pressure, the bolt can be firmly clamped in the screw hole of the wheel frame, the condition that the bolt is loosened due to the influence of the vibration force is effectively avoided, thereby effectively avoiding the condition that the rear, the tightness of the bolt in the process of screwing is guaranteed to the maximum extent, and accidents are effectively avoided.
Drawings
Fig. 1 is a schematic structural view of a rear wheel hub bolt in the tunnel dump truck with high tightness according to the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1 and 2, the utility model provides a rear wheel hub bolt in tunnel dumper with high tightness, which comprises a screw body 1, a screw head 2 arranged at the upper end of the screw body 1 and an external thread 3 arranged on the outer wall of the screw body 1, wherein the center of the upper surface of the screw head 2 is provided with a hexagonal clamping groove 4, and the lower surface of the screw body 1 is provided with a dismounting hole 5; a supporting column 6 is screwed in the dismounting hole 5, and the hardness of the supporting column 6 is greater than that of the screw body 1; the upper surface of the support column 6 and the inner wall of the dismounting hole 5 are enclosed to form a fastening chamber 7; a limiting groove 8 is arranged at the bottom of the hexagonal clamping groove 4; the limiting groove 8 is communicated with the fastening chamber 7 through a lifting hole 9; the diameter of the lifting hole 9 is smaller than that of the limiting groove 8, and a limiting step 10 is formed between the limiting groove 8 and the lifting hole 9; a lifting shaft 11 matched with the lifting hole 9 is arranged in the lifting hole; the upper end of the lifting shaft 11 is hinged with a rotating block 12 positioned in the limiting groove 8, and the diameter of the rotating block 12 is the same as that of the lifting shaft 11; the left side and the right side of the rotating block 12 are provided with mutually symmetrical limiting wings 13, and the limiting wings 13 are clamped on the limiting steps 10; the inner walls of the front side and the rear side of the upper part of the lifting hole 9 are provided with clamping grooves 14 matched with the limiting wings 13, and the notch at the upper end of each clamping groove 14 is flush with the orifice at the upper end of the lifting hole 9; the lower end of the lifting shaft 11 penetrates into the fastening chamber 7 downwards and is provided with a lifting plate 15; a spring 16 sleeved outside the lifting shaft 11 is arranged between the lifting plate 15 and the upper side cavity wall of the fastening cavity 7, and the spring 16 is in a compressed state; waist-shaped holes 17 which are symmetrical to each other are arranged on the left side and the right side of the lifting plate 15; swing holes 18 communicated with the fastening chamber 7 are formed in the left side and the right side of the upper part of the screw body 1; the middle part of the swinging hole 18 is hinged with a fastening rod 19; the outer end of the fastening rod 19 extends out of the screw body 1 and is provided with a latch 20, and the inner end of the fastening rod 19 extends into the fastening chamber 7 and is connected with the lifting plate 15 through a sliding rod 21 arranged in the waist-shaped hole 17; the sliding rod 21 is attached to a side hole wall adjacent to the lifting shaft 11.
The upper end of the rotating block 12 is provided with a lifting hole 22; a caulking groove 23 is arranged in the rotating block 12, a rotating hole 24 communicated with the caulking groove 23 is arranged in the center of the lower surface of the rotating block 12, and the diameter of the rotating hole 24 is smaller than that of the caulking groove 23; an embedded block 25 matched with the embedded groove 23 is arranged in the embedded groove; a rotating rod 26 matched with the rotating hole 24 is arranged in the rotating hole; the insert 25 is connected to the lifting shaft 11 by means of a rotary rod 26.
The lower surface of the lifting shaft 11 is provided with a guide hole 27; a guide rod 28 coaxial with the guide hole 27 is arranged in the center of the upper surface of the support column 6, and the upper end of the guide rod 28 extends into the guide hole 27; the upper end surface of the guide rod 28 and the bottom of the guide hole 27 are provided with a lifting space.
The upper surface of the support column 6 is provided with a limiting pipe 29, and the limiting pipe 29 is sleeved outside the lower part of the guide rod 28.
The upper end face of the limiting pipe 29 is provided with a rubber pad 30.
The lower end of the inner side hole opening of the swing hole 18 is provided with an inclined plane notch 31 communicated with the swing hole.
The utility model discloses a use method as follows:
when the bolt is needed to be screwed, a worker can directly rotate the rotating block 12 through a tool, at the moment, the rotating block 12 can rotate along the track of the rotating rod 26, the limiting wing 13 can rotate along the direction of the rotating block 12, when the limiting wing 13 rotates to the position of the clamping groove 14, the limiting wing 13 loses the limitation of the limiting step 10, the spring 16 which is originally in a compressed state can explode to generate elasticity and instantly open, the lifting plate 15 moves downwards under the condition that the upper side cavity wall of the fastening cavity 7 is fastened, the lifting plate 15 is connected with the lifting shaft 11, the lifting shaft 11 moves downwards along the track of the lifting hole 9 under the driving of the lifting plate 15, at the moment, the limiting wing 13 is clamped into the clamping groove 14, because the middle part of the fastening rod 19 is hinged to the center of the swinging hole 18, the right end of the fastening rod 19 extends into the fastening cavity 7 and is connected with the lifting plate 15 through the sliding rod 21 arranged in the kidney-shaped hole 17, therefore, when the lifting plate 15 moves downwards, the inner end of the fastening rod 19 slides to the hole wall position far away from the lifting shaft 11 from the hole wall position of the waist-shaped hole 17 near the lifting shaft 11 through the slide rod 21, the left end of the fastening rod 19 tilts upwards and retracts into the upper part of the swing hole 18, at this time, the latch 20 arranged at the left end of the fastening rod 19 does not influence the engagement of the external thread 3 on the screw body 1 and the screw hole on the wheel frame, and the screw bolt can be screwed smoothly.
After the bolt is screwed, a worker can hook the lifting hole 22 through a hook-shaped tool to lift the rotating block 12, the lifting shaft 11 moves upwards at the moment, the lifting plate 15 moves upwards along with the lifting shaft 11, the spring 16 is compressed by the lifting plate 15, the limiting wing 13 moves upwards along the track of the clamping groove 14 in the process of moving upwards of the rotating block 12, when the limiting wing 13 is completely separated from the clamping groove 14, the rotating block 12 can rotate at the moment, when the limiting wing 13 rotates along with the rotating block 12, the position of the limiting wing 13 and the position of the clamping groove 14 are staggered, the lower surface of the limiting wing 13 is clamped on the limiting step 10, the position fixation after moving upwards of the lifting shaft 11 is realized, the position fixation after moving upwards of the lifting plate 15 is realized, when the lifting plate 15 moves upwards, the inner end of the fastening rod 19 can slide to the position adjacent to the side of the lifting shaft 11 from the hole wall position of the waist-shaped hole 17 far away from the lifting shaft 11 through a slide rod, at the moment, the outer end of the fastening rod 19 swings outwards by taking a self hinge point as a center, the position of the latch 20 gradually exceeds the external thread 3 outwards, and the latch 20 is tightly pressed on the internal thread of the screw hole of the wheel frame.
In conclusion, the utility model can make the outer end of the fastening rod 19 extend outwards through the rotating block when the bolt is screwed in the screw hole of the wheel frame, finally press the latch 20 arranged on the outer end of the fastening rod 19 tightly on the internal thread of the screw hole of the wheel frame, at the moment, the position of the bolt can be effectively limited by the block between the latch 20 and the internal thread of the screw hole of the wheel frame, and only the limiting wings 13 on the left and right sides of the rotating block 12 are required to be clamped on the limiting steps 10, so that the latch 20 can be guaranteed to be pressed tightly on the internal thread of the screw hole of the wheel frame all the time, even if the bolt has vibration, under the action of the pressure, the bolt can be firmly clamped in the screw hole of the wheel frame, thereby effectively avoiding the condition that the bolt is loosened due to the influence of vibration force, thereby effectively avoiding the condition that the hub of the middle and rear wheel is loosened or falls off due to, effectively preventing accidents.
The 11 lower surface of lift axle is equipped with guiding hole 27, support column 6 upper surface center is equipped with the guide bar 28 coaxial with guiding hole 27, the guide bar 28 upper end stretches into in the guiding hole 27, the lift interval has between 28 up end of guide bar end face and the guiding hole 27 hole bottom, guide bar 28 can form the guide effect at the lift axle 11 lower extreme, and lift axle 11 upper end then can lead through lift hole 9 inner wall, the stability when lift axle 11 goes up and down can be guaranteed in the upper and lower both ends direction simultaneously, thereby guarantee the axiality of lift axle, guarantee fastening rod 19 wobbling angle unanimity, make all latch 20 sticiss the power unanimity on the internal thread of wheel frame screw, further guarantee the fastening when latch restriction bolt is not hard up.
The upper surface of the supporting column 6 is provided with a limiting pipe 29, the limiting pipe 29 is sleeved outside the lower part of the guide rod 28, and the existence of the limiting pipe 29 can limit the downward moving degree of the lifting plate 15, so that the downward moving degree of the rotating block 12 hinged to the upper end of the lifting shaft 11 is limited, and the situation that the lifting hole 22 is difficult to be hooked by a hook-shaped tool to be pulled after entering the lifting hole 9 is avoided.
The lower end of the inner side orifice of the swing hole 18 is provided with an inclined plane notch 31 communicated with the swing hole, the existence of the inclined plane notch 31 can effectively increase the swing angle of the fastening rod 19, and the fastening rod 19 can be guaranteed to swing smoothly to the maximum extent.
The support column 6 is threaded in the dismounting hole 5, the material hardness of the support column 6 is greater than that of the screw body 1, the support column 6 can replace part of the material of the screw body 1, the hardness of the screw body 1 is effectively improved, the strength of a bolt is increased, and when parts in the fastening cavity 7 need to be dismounted, the dismounting work of the parts can be quickly completed only by screwing the support column 6 out of the dismounting hole 5.
Claims (6)
1. The utility model provides a rear wheel hub bolt in gallery tipper with high fixity, includes the spiral shell body, locates the spiral shell head of spiral shell body upper end and locates the external screw thread on the spiral shell body outer wall, and spiral shell head upper surface center is equipped with hexagonal draw-in groove, its characterized in that: the lower surface of the screw body is provided with a dismounting hole; a supporting column is screwed in the dismounting hole, and the hardness of the supporting column material is greater than that of the screw body material; the upper surface of the supporting column and the inner wall of the dismounting hole are enclosed to form a fastening chamber; a limiting groove is formed at the bottom of the hexagonal clamping groove; the limiting groove is communicated with the fastening cavity through a lifting hole; the diameter of the lifting hole is smaller than that of the limiting groove, and a limiting step is formed between the limiting groove and the lifting hole; a lifting shaft matched with the lifting hole is arranged in the lifting hole; the upper end of the lifting shaft is hinged with a rotating block positioned in the limiting groove, and the diameter of the rotating block is the same as that of the lifting shaft; the left side and the right side of the rotating block are provided with mutually symmetrical limiting wings, and the limiting wings are clamped on the limiting steps; the inner walls of the front side and the rear side of the upper part of the lifting hole are provided with clamping grooves matched with the limiting wings, and the notch at the upper end of each clamping groove is flush with the orifice at the upper end of the lifting hole; the lower end of the lifting shaft penetrates into the fastening cavity downwards and is provided with a lifting plate; a spring sleeved outside the lifting shaft is arranged between the lifting plate and the upper side cavity wall of the fastening cavity, and the spring is in a compressed state; waist-shaped holes which are symmetrical to each other are formed in the left side and the right side of the lifting plate; swing holes communicated with the fastening chamber are formed in the left side and the right side of the upper part of the screw body; the middle part of the swinging hole is hinged with a fastening rod; the outer end of the fastening rod extends out of the screw body and is provided with a latch, and the inner end of the fastening rod extends into the fastening cavity and is connected with the lifting plate through a sliding rod arranged in the waist-shaped hole; the slide bar is attached to the wall of one side hole adjacent to the lifting shaft.
2. The rear wheel hub bolt in an excavation dump truck having high fixability as set forth in claim 1, wherein: the upper end of the rotating block is provided with a lifting hole; the rotating block is internally provided with an embedded groove, the center of the lower surface of the rotating block is provided with a rotating hole communicated with the embedded groove, and the diameter of the rotating hole is smaller than that of the embedded groove; an embedded block matched with the embedded groove is arranged in the embedded groove; a rotating rod matched with the rotating hole is arranged in the rotating hole; the inserted block is connected with the lifting shaft through a rotating rod.
3. The rear wheel hub bolt in an excavation dump truck having high fixability as set forth in claim 1, wherein: the lower surface of the lifting shaft is provided with a guide hole; a guide rod coaxial with the guide hole is arranged in the center of the upper surface of the support column, and the upper end of the guide rod extends into the guide hole; and a lifting space is formed between the end surface of the upper end of the guide rod and the bottom of the guide hole.
4. The rear wheel hub bolt in an excavation dump truck having high fixability as set forth in claim 3, wherein: the upper surface of the support column is provided with a limiting pipe, and the limiting pipe is sleeved outside the lower part of the guide rod.
5. The rear wheel hub bolt in an excavation dump truck having high fixability according to claim 4, wherein: the upper end face of the limiting pipe is provided with a rubber pad.
6. The rear wheel hub bolt in an excavation dump truck having high fixability as set forth in claim 1, wherein: the lower end of the orifice at the inner side of the swing hole is provided with an inclined plane notch communicated with the swing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922162497.8U CN211145050U (en) | 2019-12-05 | 2019-12-05 | Tunnel tipper middle rear wheel hub bolt with high fixity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922162497.8U CN211145050U (en) | 2019-12-05 | 2019-12-05 | Tunnel tipper middle rear wheel hub bolt with high fixity |
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| Publication Number | Publication Date |
|---|---|
| CN211145050U true CN211145050U (en) | 2020-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922162497.8U Active CN211145050U (en) | 2019-12-05 | 2019-12-05 | Tunnel tipper middle rear wheel hub bolt with high fixity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211145050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946710A (en) * | 2020-09-02 | 2020-11-17 | 金道亮 | Antirust bolt with self-locking capability |
-
2019
- 2019-12-05 CN CN201922162497.8U patent/CN211145050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946710A (en) * | 2020-09-02 | 2020-11-17 | 金道亮 | Antirust bolt with self-locking capability |
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