CN210087360U - High-pressure rotary joint for mounting anchor rod - Google Patents
High-pressure rotary joint for mounting anchor rod Download PDFInfo
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- CN210087360U CN210087360U CN201920417742.2U CN201920417742U CN210087360U CN 210087360 U CN210087360 U CN 210087360U CN 201920417742 U CN201920417742 U CN 201920417742U CN 210087360 U CN210087360 U CN 210087360U
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Abstract
The utility model discloses a high pressure rotary joint of stock installation belongs to resin stock installation technical field. The device comprises a rotating shaft (1), a left shaft sleeve (8), a right shaft sleeve (2) and a sleeve (4), wherein the sleeve (4) is provided with an injection hole (41); the middle of the rotating shaft (1) is a convex connecting part (11), a grouting through hole (9) is formed in the rotating shaft (1), a first sealing ring (6) and a second sealing ring (3) are sleeved on two sides of the middle of the connecting part (11), bearings (7) are arranged on the outer sides of the first sealing ring (6) and the second sealing ring (3), and the two ends of the sleeve (4) are arranged on the left shaft sleeve (8) and the right shaft sleeve (2). Can connect high pressure water, roofbolter and stock three through this device, realize stock anchor and stock pretension simultaneously, solve current resin stock and relapse dismouting mounting tool problem consuming time and wasting force in the installation.
Description
Technical Field
The utility model discloses a high-pressure rotary joint for stock installation belongs to resin stock installation technical field.
Background
The anchor rod is the most basic component of roadway support in the contemporary coal mine, and the anchor rod reinforces the surrounding rocks of the roadway together to support the surrounding rocks per se. Its function is to prestress the bolt. The existing resin anchor rod mainly comprises a rod body, a tray, a nut and other components, wherein an anchor head is arranged at one end of the rod body, the tray is tightly attached to surrounding rock by screwing the nut at the other end of the rod body, and anchoring is realized through an anchoring agent. The material for binding and anchoring is an anchoring agent, the resin anchoring agent is formed by cutting and packaging two parts of resin daub and curing agent into a roll shape, and the rod body can be bound with the coal and rock of the anchored body after mixing.
When the resin anchor rod is in actual use at present, holes need to be punched firstly, the anchoring agent is installed in the holes manually after the holes are punched, then the anchor rod body is driven by the anchor rod drilling machine to rotate and stir the cartridges to realize anchoring, and meanwhile, the anchor rod is easy to lose efficacy due to the influence of factors such as a plurality of resin cartridges, poor top plate hole forming, low machine torque and the like, and the operation of workers is difficult due to multiple processes and complex operation. Meanwhile, the names of Chinese patent, publication No. CN103867220A and publication No. 2014.06.18 are that the anchor rod body recorded in the internally-injected hollow resin anchor rod is of a hollow structure, the interior of the anchor rod body is a medicament cavity, and the mixing of the anchoring agent is realized by pushing a piston, but the technical scheme disclosed by the patent cannot solve the problem of the integration of anchoring and pre-tightening of the resin anchor rod.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that present traditional resin stock needs to relapse dismouting mounting tool, causes the installation inconvenient.
The utility model provides a technical scheme that its technical problem adopted is: the high-pressure rotary joint for mounting the anchor rod comprises a rotating shaft, a left shaft sleeve, a right shaft sleeve and a sleeve, wherein the middle part of the outer wall of the sleeve is provided with an injection hole; the rotating shaft is of a stepped shaft structure, the middle part of the rotating shaft is a connecting part of a convex structure, a grouting through hole is arranged in the rotating shaft and comprises a radial hole and an axial hole which are communicated, one end of the radial hole, far away from the axial hole, extends out of the outer wall of the connecting part, the axial hole is of a blind hole structure, one end of the axial hole extends to the end face of the rotating shaft, and the rotating shaft penetrates into the sleeve and can rotate in the sleeve; the first sealing ring and the second sealing ring are respectively sleeved on step surfaces on two sides of the middle of the connecting part, the outer walls of the first sealing ring and the second sealing ring are respectively attached to the inner wall of the sleeve, bearings are respectively sleeved on the step surfaces on the outer sides of the first sealing ring and the second sealing ring, and the left shaft sleeve and the right shaft sleeve are arranged on the outer sides of the two bearings and can be detachably connected with the sleeve.
The grouting through hole in the device is of a cross structure, and a radial hole of the grouting through hole penetrates through the whole rotating shaft.
The rotating shaft in the device can rotate to enable the axis of the injection hole to coincide with the axis of the radial hole of the grouting through hole in the rotating shaft.
In the device, the first sealing ring is a copper sealing ring, and the second sealing ring is a rubber sealing ring.
Wherein, the outer end of the injection hole in the device is provided with a quick coupling.
The cross sections of the left shaft sleeve and the right shaft sleeve in the device are U-shaped structures, and a through hole for the rotating shaft to penetrate out is formed in the middle of the bottom end of the device.
Wherein, among the above-mentioned device sleeve pipe both ends are provided with connecting thread, and the connecting thread of both ends revolves to opposite, and left axle sleeve and right axle sleeve are inside all to be provided with the connecting thread of adaptation for left axle sleeve and right axle sleeve respectively with sleeve pipe threaded connection.
Wherein, the distance between the connecting part and the inner wall of the sleeve in the device is 5-20 mm.
The utility model has the advantages that: the device has simple structure and convenient use. This device left side axle sleeve and right axle sleeve set up the middle part of pivot in the sleeve to middle part symmetry in the pivot is provided with first sealing ring and second sealing ring, and the outer end sets up the bearing and realizes pivot and sheathed tube sealed rotation, and sets up the slip casting through-hole in pivot inside, sets up the filling hole on the sleeve pipe. When the structure is actually used, high-pressure water can be connected with the injection hole, and the anchoring agent in the rod body is pushed by the high-pressure water to realize anchoring. But after the anchoring is finished, the anchor rod drilling machine is directly connected with the other end of the rotary joint, so that the pre-tightening of the anchor rod is realized, a nut of the anchor rod does not need to be screwed manually, the integration of the anchoring and the pre-tightening is realized, and the anchoring period is shortened.
Drawings
Fig. 1 is a schematic view of the full-section structure of the utility model.
Fig. 2 is the utility model discloses the connection structure schematic diagram with roofbolter and stock during the use.
Labeled as: the anchor rod drilling machine comprises a rotating shaft 1, a connecting part 11, a right shaft sleeve 2, a second sealing ring 3, a sleeve 4, a filling hole 41, a quick connector 5, a first sealing ring 6, a bearing 7, a left shaft sleeve 8, a grouting through hole 9, a nut 12, a tray 13, a piston 14, a rod body 15, an anchoring agent bag 16 and an anchor rod drilling machine 17.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and 2, the high-pressure swivel joint for mounting an anchor rod of the present invention comprises a rotating shaft 1, a left shaft sleeve 8, a right shaft sleeve 2 and a sleeve 4, wherein an injection hole 41 is arranged in the middle of the outer wall of the sleeve 4; the rotating shaft 1 is of a stepped shaft structure, the middle part of the rotating shaft is a connecting part 11 of a convex structure, a grouting through hole 9 is arranged in the rotating shaft 1, the grouting through hole 9 comprises a radial hole and an axial hole which are communicated, one end of the radial hole, far away from the axial hole, extends out of the outer wall of the connecting part 11, the axial hole is of a blind hole structure, one end of the axial hole extends to the end face of the rotating shaft 1, and the rotating shaft 1 penetrates into the sleeve 4 and can rotate in the sleeve 4; the first sealing ring 6 and the second sealing ring 3 are respectively sleeved on step faces on two sides of the middle of the connecting portion 11, the outer walls of the first sealing ring 6 and the second sealing ring 3 are attached to the inner wall of the sleeve 4, the bearing 7 is sleeved on the step faces on the outer sides of the first sealing ring 6 and the second sealing ring 3, and the left shaft sleeve 8 and the right shaft sleeve 2 are arranged on the outer sides of the bearing 7 on two sides and can be detachably connected with the sleeve 4. As can be understood by those skilled in the art, because the middle part of the rotating shaft 1 is the connecting part 11 with the convex-shaped structure, and the whole rotating shaft 1 is a stepped shaft, the first sealing ring 6 and the second sealing ring 3 are symmetrically sleeved on the step surfaces at two sides of the middle part of the connecting part 11 of the rotating shaft 1, and the outer walls of the first sealing ring 6 and the second sealing ring 3 can be directly and tightly attached to the inner wall of the sleeve 4 to realize axial sealing; in order to reduce abrasion, the device preferably sleeves a bearing 7 on a stepped shaft outside the first sealing ring 6 and the second sealing ring 3, the left shaft sleeve 8 and the right shaft sleeve 2 are arranged at two ends of the sleeve 4, and meanwhile, the middle of the rotating shaft 1 is arranged in the sleeve 4 by applying an axial acting force by adjusting the distance between the left shaft sleeve 8 and the right shaft sleeve 2, so that the rotating shaft 1 and the sleeve 4 are sealed and rotated. Meanwhile, the rotating shaft 1 of the device is rotatably connected with the sleeve 4, the injection hole 41 is formed in the sleeve 4, the grouting through hole 9 is formed in the rotating shaft 1, the device aims at achieving integration of drilling and anchoring, and the high-pressure water mainly acts on pushing the piston 14 to extrude the anchoring agent bag 16 to achieve anchoring of the rod body 15, so that a certain gap exists between the outer wall of the middle of the connecting portion 11 of the rotating shaft 1 and the inner wall of the sleeve 4, and the high-pressure water can enter the rotating shaft 1 conveniently when the rotating shaft rotates along with the anchor rod drilling machine 17. This device is when in actual use, can be connected high pressure water and filling hole 41, be provided with slip casting through-hole 9 end with pivot 1 simultaneously and be connected with the stock body of rod, be connected the other end and the jumbolter 17 of pivot 1, provide the rotation power of stock body of rod 15 through jumbolter 17, make tray 13 near the country rock lateral wall through nut 12, realize the pretension of stock, and the high pressure water of following slip casting through-hole 9 exhaust directly flows into hollow stock body of rod 15, promote piston 14 and provide power for the anchor agent mixes, thereby realize anchor and pretension integration, shorten the anchor cycle.
Preferably, in the above device, the grouting through hole 9 has a cross-shaped structure, and a radial hole of the grouting through hole 9 penetrates through the entire rotating shaft 1. It will be appreciated by those skilled in the art that in order to ensure the water inflow under high pressure, the device preferably has a cross-shaped structure of the grouting through hole 9, such that the radial hole entirely penetrates through the rotating shaft 1, i.e. the connecting portion 11, such that the high pressure water can be introduced into both sides of the grouting through hole 9 to maintain the power required for pushing the anchoring agent.
Preferably, the rotating shaft 1 of the above device is rotated so that the axis of the injection hole 41 coincides with the axis of the radial through hole of the rotating shaft 1. It will be appreciated by those skilled in the art that it is further preferred that the apparatus is adapted to rotate the shaft 1 such that the axis of the injection hole 41 coincides with the axis of the radial through hole of the shaft 1.
Preferably, in the above device, the first seal ring 6 is a copper seal ring, and the second seal ring 3 is a rubber seal ring. It can be understood by those skilled in the art that the device is only preferable that the first sealing ring 6 is a copper sealing ring, and the second sealing ring 3 is a rubber sealing ring, so that the sealing effect of the whole device is better, and the abrasion of the sealing rings is minimum.
Preferably, the above device is provided with a quick coupling 5 at the outer end of the injection hole 41. As will be understood by those skilled in the art, in order to facilitate the connection of the injection hole 41 with the high pressure water, the present apparatus is preferably provided with a quick coupling 5 at an outer end of the injection hole 41, thereby shortening the connection time of the injection hole 41 and the high pressure water pipe.
Preferably, in the device, the cross sections of the left shaft sleeve 8 and the right shaft sleeve 2 are of U-shaped structures, and the middle part of the bottom end of the left shaft sleeve and the right shaft sleeve is provided with a through hole for the rotating shaft 1 to penetrate out. As can be understood by those skilled in the art, the device is only preferably that the cross-sectional structures of the left shaft sleeve 8 and the right shaft sleeve 2 are U-shaped, and in order to facilitate the penetration of the rotating shaft 1, it is further preferable that the middle part of the bottom end is provided with a through hole for the penetration of the rotating shaft 1.
Preferably, in the above device, two ends of the sleeve 4 are provided with connecting threads, the rotating directions of the connecting threads at the two ends are opposite, and the left shaft sleeve 8 and the right shaft sleeve 2 are both internally provided with adaptive connecting threads, so that the left shaft sleeve 8 and the right shaft sleeve 2 are respectively in threaded connection with the sleeve 4. As can be understood by those skilled in the art, in order to make the whole device operate, the structure of the device is more stable, preferably, connecting threads with opposite turning directions are arranged at two ends of the sleeve 4, and meanwhile, connecting threads which are respectively matched with the two ends of the connecting end of the left shaft sleeve 8 and the connecting end of the right shaft sleeve 2 are arranged at the connecting end of the left shaft sleeve 8 and the connecting end of the right shaft sleeve 2, so that the end of the sleeve 4 can be respectively in threaded connection with the left; meanwhile, the reverse threads are arranged to effectively prevent the reaction force of high-pressure water from directly acting on the sleeve 4 when the device is actually used, so that the sleeve 4 rotates to cause one end of the left shaft sleeve 8 or one end of the right shaft sleeve 2 to be loosened.
Preferably, the distance between the connecting part 11 and the inner wall of the casing 4 in the above device is 5 to 20 mm. It can be understood by those skilled in the art that the pressure-holding condition is avoided in order to facilitate the smooth flow of the high-pressure water from the injection hole into the rotating shaft 1 along the gap between the connecting part 11 and the sleeve 4. Therefore, the distance between the connecting part 11 and the inner wall of the casing 4 is preferably 5 to 20mm, that is, the distance between the maximum diameter of the rotating shaft 1 and the inner wall of the casing 4 is preferably 5 to 20 mm.
Claims (8)
1. A high pressure rotary joint for stock installation, its characterized in that: the device comprises a rotating shaft (1), a left shaft sleeve (8), a right shaft sleeve (2) and a sleeve (4), wherein an injection hole (41) is formed in the middle of the outer wall of the sleeve (4); the rotating shaft (1) is of a stepped shaft structure, the middle part of the rotating shaft is a connecting part (11) of a convex structure, a grouting through hole (9) is formed in the rotating shaft (1), the grouting through hole (9) comprises a radial hole and an axial hole which are communicated, one end of the radial hole, which is far away from the axial hole, extends out of the outer wall of the connecting part (11), the axial hole is of a blind hole structure, one end of the axial hole extends to the end face of the rotating shaft (1), and the rotating shaft (1) penetrates into the sleeve (4) and can rotate in the sleeve (4); the connecting portion (11) middle part both sides step face is gone up to overlap respectively and is equipped with first sealing ring (6) and second sealing ring (3), the outer wall of first sealing ring (6) and second sealing ring (3) all with the laminating of sleeve pipe (4) inner wall, all overlap on the step face in first sealing ring (6) and second sealing ring (3) outside and be equipped with bearing (7), left side axle sleeve (8) and right axle sleeve (2) set up in the outside of both sides bearing (7) and can dismantle with sleeve pipe (4) and be connected.
2. A high pressure swivel for bolting according to claim 1, characterised in that: the grouting through hole (9) is of a cross structure, and a radial hole of the grouting through hole (9) penetrates through the whole rotating shaft (1).
3. A high pressure swivel for bolting according to claim 2, characterised in that: the rotating shaft (1) is rotated to enable the axis of the injection hole (41) to coincide with the radial hole axis of the grouting through hole (9) on the rotating shaft (1).
4. A high pressure swivel for bolting according to claim 1, characterised in that: the first sealing ring (6) is a copper sealing ring, and the second sealing ring (3) is a rubber sealing ring.
5. A high pressure swivel for bolting according to claim 1, characterised in that: the outer end of the injection hole (41) is provided with a quick joint (5).
6. A high pressure swivel for bolting according to claim 1, characterised in that: the cross sections of the left shaft sleeve (8) and the right shaft sleeve (2) are U-shaped structures, and a through hole for the rotating shaft (1) to penetrate out is formed in the middle of the bottom end of the left shaft sleeve.
7. A high pressure swivel for bolting according to any of the claims 1 to 6, characterised in that: the two ends of the sleeve (4) are provided with connecting threads, the rotating directions of the connecting threads at the two ends are opposite, and the connecting threads matched with the left shaft sleeve (8) and the right shaft sleeve (2) are arranged inside the left shaft sleeve (8) and the right shaft sleeve (2) respectively so that the left shaft sleeve (8) and the right shaft sleeve (2) are in threaded connection with the sleeve (4).
8. A high pressure swivel for bolting according to claim 1, characterised in that: the distance between the connecting part (11) and the inner wall of the sleeve (4) is 5-20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920417742.2U CN210087360U (en) | 2019-03-29 | 2019-03-29 | High-pressure rotary joint for mounting anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920417742.2U CN210087360U (en) | 2019-03-29 | 2019-03-29 | High-pressure rotary joint for mounting anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087360U true CN210087360U (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920417742.2U Active CN210087360U (en) | 2019-03-29 | 2019-03-29 | High-pressure rotary joint for mounting anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882224A (en) * | 2019-03-29 | 2019-06-14 | 攀枝花学院 | Chicksan for rockbolt installation |
-
2019
- 2019-03-29 CN CN201920417742.2U patent/CN210087360U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882224A (en) * | 2019-03-29 | 2019-06-14 | 攀枝花学院 | Chicksan for rockbolt installation |
| CN109882224B (en) * | 2019-03-29 | 2023-12-26 | 攀枝花学院 | High-pressure rotary joint for anchor rod installation |
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