CN220769505U - Device for rotating, drawing and locking anchor rod - Google Patents

Abstract

The utility model relates to the technical field of tunnel support construction, and aims to solve the problems that an existing anchor rod mechanism does not have a drawing function, an anchor rod is scrapped when the drawing force is detected to be substandard, and re-anchoring is needed; the box body is provided with an outer shaft assembly and an inner shaft assembly, the outer shaft assembly is sleeved outside the inner shaft assembly, and the front end of the inner shaft assembly is connected with the anchor rod; the outer shaft assembly and the inner shaft assembly being connectable to the input shaft assembly, the input shaft assembly being capable of driving the outer shaft assembly and the inner shaft assembly separately or simultaneously; the inside of box still is provided with drawing mechanism, drawing mechanism with interior axle subassembly is connected, drawing mechanism can drive interior axle subassembly axial displacement.

Description

Device for rotating, drawing and locking anchor rod

Technical Field

The utility model relates to the technical field of tunnel support construction, in particular to a device for rotating, drawing and locking an anchor rod.

Background

The anchor bolt support is a common reinforcement support mode in tunnel construction, and is used for controlling the stress release and deformation of surrounding rock and increasing the structural safety.

The prior art discloses the stock mechanism that can slip casting and screw nut, but need carry out the pulling force to it and detect after the stock construction is accomplished, because current stock mechanism does not possess the drawing function, can lead to the stock to scrap when its pulling force detects not up to standard, need anchor again, destroys supporting construction's stability.

Disclosure of Invention

The utility model aims to provide a device for rotating, drawing and locking an anchor rod, which solves the problems that the existing anchor rod mechanism does not have a drawing function, the anchor rod is scrapped when the drawing force is not detected to reach the standard, and re-anchoring is needed.

The utility model is realized by adopting the following technical scheme:

the utility model provides a device for rotating, drawing and locking an anchor rod, which comprises a box body, wherein an input shaft assembly is arranged in the box body, and the input shaft assembly is connected with a driving mechanism;

the box body is provided with an outer shaft assembly and an inner shaft assembly, the outer shaft assembly is sleeved outside the inner shaft assembly, and the front end of the inner shaft assembly is connected with the anchor rod; the outer shaft assembly and the inner shaft assembly being connectable to the input shaft assembly, the input shaft assembly being capable of driving the outer shaft assembly and the inner shaft assembly separately or simultaneously;

the inside of box still is provided with drawing mechanism, drawing mechanism with interior axle subassembly is connected, drawing mechanism can drive interior axle subassembly axial displacement.

As a preferable technical scheme:

the novel inner shaft assembly is characterized in that a sensor support is further arranged in the box body, two sensors are arranged on the sensor support and used for identifying the position of the inner shaft assembly, the two sensors are a first sensor and a second sensor respectively, and the first sensor is located at the front end of the second sensor.

As a preferable technical scheme:

the input shaft assembly comprises an input shaft, and two ends of the input shaft are rotationally connected with the box body;

the input shaft is provided with a first clutch, a second clutch, a first spur gear and a second spur gear, the first clutch is used for establishing connection between the first spur gear and the input shaft, and the input shaft drives the first spur gear to rotate; the second clutch is used for establishing connection between the second spur gear and the input shaft, and the input shaft drives the second spur gear to rotate.

As a preferable technical scheme:

the driving mechanism is a motor, and the motor is connected with one end of the input shaft.

As a preferable technical scheme:

the second clutch comprises a clutch inner ring, a clutch outer ring and a clutch plunger, the clutch inner ring is sleeved outside the input shaft, the clutch plunger is sleeved on the clutch inner ring, and the clutch outer ring is sleeved outside the clutch inner ring and the clutch plunger; a key sleeve is arranged on the input shaft, and the clutch plunger is abutted with the key sleeve;

the clutch outer ring is provided with a hydraulic hole, and oil is supplied to the second clutch through the hydraulic hole, so that the clutch plunger can extend out, and the key sleeve is pushed to enter one end of the second spur gear;

the inner side of the end of the second spur gear is also provided with a key sleeve, and after the two key sleeves are connected, the connection between the second spur gear and the input shaft is established.

As a preferable technical scheme:

the inner side of the end of the second spur gear is also provided with a first spring supporting ring and a first compression spring, the first spring supporting ring is sleeved on the input shaft, one end of the first compression spring is connected to the first spring supporting ring, the other end of the first compression spring is in butt joint with a key sleeve on the input shaft, and the first compression spring is used for resetting the key sleeve.

As a preferable technical scheme:

the outer shaft assembly includes an outer shaft having a third spur gear mounted thereon that meshes with the first spur gear.

As a preferable technical scheme:

the front end cover of outer axle is equipped with the sleeve, sleeve part cover is established on the outer axle, seted up first spout on the outer axle, be connected with first spacing post on the sleeve, first spacing post can slide in the first spout, third spring support ring is installed to telescopic rear end, install the second spring support ring on the outer axle, third spring support ring with be equipped with the second compression spring between the second spring support ring.

As a preferable technical scheme:

an outer sleeve is sleeved outside the outer shaft assembly, and one end of the outer sleeve is connected to the box body.

As a preferable technical scheme:

the inner shaft assembly comprises a fixed inner shaft and an inner shaft, the inner shaft is connected to the front end of the fixed inner shaft, a fourth spur gear is mounted on the fixed inner shaft, and the second spur gear is meshed with the fourth spur gear.

As a preferable technical scheme:

the fixed inner shaft is provided with a second chute, the rear end of the inner shaft is connected with a second limit column, and the second limit column can slide in the second chute.

As a preferable technical scheme:

the drawing mechanism comprises a tensioning cylinder, an outer cylinder of the tensioning cylinder is fixed on the box body, a piston rod of the tensioning cylinder is connected with the inner shaft, the inner shaft is driven to axially move through expansion and contraction of the piston rod of the tensioning cylinder, a spring is arranged in the tensioning cylinder, and in a floating state of the tensioning cylinder, the piston rod is subjected to pushing force of the spring to push the piston rod outwards.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

the device has the functions of automatic rotation tensioning (or rotation stirring), drawing and nut locking when the anchor rod is installed, and simultaneously, a grouting channel and an interface are arranged. The utility model can realize the whole process automatic construction of the shell-expanding anchor rod and the resin anchor rod, and simultaneously has the automatic drawing function, so that the problems of anchor rod scrapping and re-drilling anchoring caused by substandard drawing force detection after the anchor rod construction can be effectively avoided, and the construction quality and efficiency are improved.

Drawings

Fig. 1 is a schematic structural view of an apparatus for rotating, pulling and locking an anchor rod according to the present utility model.

Fig. 2 is a cross-sectional view taken along the direction A-A in fig. 1.

FIG. 3 is a schematic diagram of an input shaft assembly according to the present utility model.

Fig. 4 is a schematic structural view of the second clutch according to the present utility model.

Fig. 5 is a schematic view of the structure of the outer shaft assembly according to the present utility model.

Fig. 6 is a cross-sectional view taken along the direction A-A in fig. 5.

Fig. 7 is a schematic structural view of the inner shaft assembly according to the present utility model.

Fig. 8 is a cross-sectional view taken along the direction A-A in fig. 7.

Icon: 1 box, 2 motor, 3 pull-out mechanism, 4 input shaft assembly, 4-1 input shaft, 4-2 first clutch, 4-3 second clutch, 4-4 first spur gear, 4-5 second spur gear, 4-6 first spring support ring, 4-7 first compression spring, 4-3-1 clutch inner race, 4-3-2 clutch outer race, 4-3-3 clutch plunger, 4-3-4 inner and outer spline housing, 4-3-5 first rolling bearing, 4-3-6 second rolling bearing, 4-3-7 first circlip, 4-3-8 second circlip, 4-3-9 first O-ring, 4-3-10 second O-ring, 5 outer shaft assembly, 5-1 outer shaft, 5-2 third spur gear, 5-3 sleeve, 5-4 second spring support ring, 5-5 second compression spring, 5-6 third spring support ring, 5-7 first limit post, 5-8 third rolling bearing, 5-9 fourth bearing, 5-10 fourth bearing, 5-7 fourth inner shaft assembly, 4-3-9 first circlip, 4-3-8 second circlip, 4-3-9 first inner shaft assembly, 5-2 inner shaft assembly, 5-3-2 third ring, 5-3 inner shaft assembly, 5-3-3 third ring, 5-3 inner shaft assembly, the hydraulic pipe comprises, by weight, 11-4 first limiting semi-rings, 11-5 first drawing load-bearing rings, 11-6 grouting extension pipes, 11-7 connecting nuts, 11-8 inner shaft nuts, 11-9 fifth rolling bearings, 11-10 sixth rolling bearings, 11-11 washers, 11-12 limiting nuts, 11-13 sixth elastic check rings, 11-14 seventh elastic check rings, 11-15 second limiting semi-rings, 11-16 second drawing load-bearing rings, 11-17 thrust sliding bearings, 11-18 eighth elastic check rings, 12 outer sleeves and 13 hydraulic pipes.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are 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.

Example 1

As shown in fig. 1 and 2, the present embodiment proposes a device for rotation, drawing and locking of an anchor rod, comprising a case 1, and a motor 2 is installed at the outer side of the case 1.

The inside of box 1 is provided with input shaft subassembly 4, input shaft subassembly 4 with motor 2 is connected, motor 2 will moment of torsion and rotational speed through the pivot export to input shaft subassembly 4.

The box body 1 is provided with an outer shaft assembly 5 and an inner shaft assembly 11, and the outer shaft assembly 5 is sleeved outside the inner shaft assembly 11. The outer shaft assembly 5 is connected to the input shaft assembly 4, the input shaft assembly 4 being capable of transmitting rotation to the outer shaft assembly 5; the inner shaft assembly 11 is connected to the input shaft assembly 4, the input shaft assembly 4 being capable of transmitting rotation to the inner shaft assembly 11. The input shaft assembly 4 is capable of driving the outer shaft assembly 5 and the inner shaft assembly 11 separately or simultaneously.

The front end of the inner shaft assembly 11 can be connected with an anchor rod, a drawing mechanism 3 is further arranged in the box body 1, the drawing mechanism 3 is connected with the inner shaft assembly 11, and the drawing mechanism 3 can drive the inner shaft assembly 11 to axially move.

In this embodiment, as shown in fig. 3, the input shaft assembly 4 includes an input shaft 4-1, two ends of the input shaft 4-1 are connected to the housing 1 through bearings, and the input shaft 4-1 is rotatable relative to the housing 1. One end of the input shaft 4-1 is connected with the motor 2, and the motor 2 is used for driving the input shaft 4-1 to rotate. The other end of the input shaft 4-1 is connected with a fixing nut 8 for positioning the input shaft 4-1 and preventing the axial movement of the input shaft. And a blank cap 6 is arranged at one end of the input shaft 4-1 connected with the fixed nut 8.

The input shaft 4-1 is symmetrically provided with a first clutch 4-2 and a second clutch 4-3, the first clutch 4-2 and the second clutch 4-3 are connected with the input shaft 4-1 through bearings, and when the input shaft 4-1 rotates, the first clutch 4-2 and the second clutch 4-3 cannot rotate along with the input shaft.

The input shaft 4-1 is symmetrically provided with a first spur gear 4-4 and a second spur gear 4-5, the first spur gear 4-4 is connected with the first clutch 4-2, and the second spur gear 4-5 is connected with the second clutch 4-3. The first spur gear 4-4 and the second spur gear 4-5 are connected to the input shaft 4-1 by bearings, and the first spur gear 4-4 and the second spur gear 4-5 do not rotate when the input shaft 4-1 rotates.

As shown in fig. 4, the second clutch 4-3 includes a clutch inner ring 4-3-1, a clutch outer ring 4-3-2, and a clutch plunger 4-3-3, wherein the clutch inner ring 4-3-1 is a variable diameter shaft, one end of the clutch inner ring 4-3-1 has a large diameter and one end has a small diameter, and a step is formed on the outer side of the clutch inner ring 4-3-1.

The clutch plunger 4-3-3 is sleeved at one end of the clutch inner ring 4-3-1 with smaller diameter, the clutch outer ring 4-3-2 is sleeved outside the clutch inner ring 4-3-1 and the clutch plunger 4-3-3, a first O-shaped sealing ring 4-3-9 is arranged between the clutch outer ring 4-3-2 and the clutch inner ring 4-3-1 and between the clutch outer ring 4-3 and the clutch plunger 4-3, and a second O-shaped sealing ring 4-3-10 is arranged between the clutch plunger 4-3-3 and the clutch inner ring 4-3-1.

The clutch inner ring 4-3-1 is sleeved outside the input shaft 4-1, and a first rolling bearing 4-3-5 is arranged between the clutch inner ring 4-3-1 and the input shaft 4-1. An inner spline sleeve and an outer spline sleeve 4-3-4 are arranged on the outer surface of the input shaft 4-1, and a second rolling bearing 4-3-6 is arranged between the clutch plunger 4-3-3 and the inner spline sleeve 4-3-4.

The clutch is characterized in that a first elastic retainer ring 4-3-7 is arranged on the inner side of the clutch inner ring 4-3-1, the first elastic retainer ring 4-3-7 is used for limiting the first rolling bearing 4-3-5, a second elastic retainer ring 4-3-8 is arranged on the inner side of the clutch outer ring 4-3-2, and the second elastic retainer ring 4-3-8 is used for limiting the clutch inner ring 4-3-1.

The clutch outer ring 4-3-2 is provided with a hydraulic hole, the hydraulic hole is used for being connected with a hydraulic pipe 13, the hydraulic pipe 13 can supply oil to the second clutch 4-3 to enable the clutch plunger 4-3 to extend out, so that the inner and outer spline housing 4-3-4 is pushed to move, the inner and outer spline housing 4-3-4 extends into one end of the second spur gear 4-5, a key housing is also arranged on the inner side of the end of the second spur gear 4-5, after the two are connected, connection is established between the second spur gear 4-5 and the input shaft 4-1, and the key housing can rotate in a transmission mode, so that the second spur gear 4-5 can rotate along with the input shaft 4-1.

The inner side of the end of the second spur gear 4-5 is also provided with a first spring supporting ring 4-6 and a first compression spring 4-7, the first spring supporting ring 4-6 is sleeved on the input shaft 4-1, one end of the first compression spring 4-7 is connected to the first spring supporting ring 4-6, the other end of the first compression spring is abutted to the inner and outer spline housing 4-3-4, when the inner and outer spline housing 4-3-4 stretches into the second spur gear 4-5, the first compression spring 4-7 is compressed, when the hydraulic pipe 13 returns oil, the first compression spring 4-7 pushes out the inner and outer spline housing 4-3-4, the connection between the second spur gear 4-5 and the input shaft 4-1 is disconnected, and at the moment, the second spur gear 4-5 does not rotate along with the input shaft 4-1.

The connection or disconnection between the first spur gear 4-4 and the input shaft 4-1 is controlled by the first clutch 4-2, and the principle is the same as that described above, and the description thereof will not be repeated.

The first spur gear 4-4 and the second spur gear 4-5 may be rotated individually or simultaneously, respectively, controlled by respective clutches.

As shown in fig. 5 and 6, the outer shaft assembly 5 includes an outer shaft 5-1, a third spur gear 5-2 is mounted on the outer shaft 5-1, the third spur gear 5-2 is meshed with the first spur gear 4-4, and the first spur gear 4-4 can rotate to drive the third spur gear 5-2 to rotate when rotating.

The outer shaft 5-1 is in spline connection with the third spur gear 5-2, rotation can be transmitted between the outer shaft 5-1 and the third spur gear, and the third spur gear 5-2 drives the outer shaft 5-1 to rotate when rotating. The outer shaft 5-1 is connected to the housing 1 by means of bearings, the outer shaft 5-1 being rotatable relative to the housing 1. The two sides of the third spur gear 5-2 are respectively provided with a third rolling bearing 5-8 and a fourth rolling bearing 5-9, the third rolling bearing 5-8 and the fourth rolling bearing 5-9 are arranged on the outer shaft 5-1, and the third rolling bearing 5-8 and the fourth rolling bearing 5-9 are connected with the box body 1. One side of the third rolling bearing 5-8 and one side of the fourth rolling bearing 5-9 are respectively provided with a third elastic retainer ring 5-10 and a fourth elastic retainer ring 5-11, and the third elastic retainer ring 5-10 and the fourth elastic retainer ring 5-11 are used for limiting the bearings; a fifth circlip 5-12 is mounted on one side of the third spur gear 5-2, and the fifth circlip 5-12 is used for limiting the third spur gear 5-2.

The front end of the outer shaft 5-1 is sleeved with a sleeve 5-3, the sleeve 5-3 is partially sleeved on the outer shaft 5-1, a first sliding groove is formed in the outer shaft 5-1, a first limiting column 5-7 is connected to the sleeve 5-3, the first limiting column 5-7 can slide in the first sliding groove, a third spring supporting ring 5-6 is mounted at the rear end of the sleeve 5-3, a second spring supporting ring 5-4 is mounted on the outer shaft 5-1, and a second compression spring 5-5 is arranged between the third spring supporting ring 5-6 and the second spring supporting ring 5-4 and is used for applying elastic jacking force to the sleeve 5-3. The outer shaft 5-1 functions as: providing a basis for the installation of the above-mentioned components and transmitting torque to the sleeve 5-3.

An outer sleeve 12 is sleeved outside the outer shaft assembly 5, and one end of the outer sleeve 12 is connected to the box body 1. The outer sleeve 12 functions as: the axial force of the whole mechanism is transmitted to the rivet wall surface, namely, the pulling force is born and transmitted.

As shown in fig. 7 and 8, the inner shaft assembly 11 includes a fixed inner shaft 11-2 and an inner shaft 11-3, the inner shaft 11-3 is connected to the front end of the fixed inner shaft 11-2, and the fixed inner shaft 11-2 is connected through a spline, and can transmit rotation to the inner shaft 11-3; the fixed inner shaft 11-2 is provided with a third chute, the rear end of the inner shaft 11-3 is positioned in the third chute, and the inner shaft 11-3 can axially move relative to the fixed inner shaft 11-2.

The fixed inner shaft 11-2 is provided with a fourth spur gear 11-1, the second spur gear 4-5 is meshed with the fourth spur gear 11-1, and the second spur gear 4-5 can drive the fourth spur gear 11-1 to rotate when rotating.

The fixed inner shaft 11-2 is in spline connection with the fourth spur gear 11-1, rotation can be transmitted between the fixed inner shaft 11-2 and the fourth spur gear, and the fourth spur gear 11-1 drives the fixed inner shaft 11-2 to rotate when rotating. The two sides of the fourth spur gear 11-1 are respectively provided with a fifth rolling bearing 11-9 and a sixth rolling bearing 11-10, the fifth rolling bearing 11-9 and the sixth rolling bearing 11-10 are mounted on the fixed inner shaft 11-2, and the sixth rolling bearing 11-10 is mounted at the rear end of the fixed inner shaft 11-2. The outer side of the six rolling bearings 11-10 is provided with a gasket 11-11 and a limit nut 11-12, the limit nut 11-12 is used for preventing the fixed inner shaft 11-2 from axially moving, and the inner side of the fifth rolling bearing 11-9 is provided with a sixth elastic retainer ring 11-13.

The front end of the fixed inner shaft 11-2 is connected with the inner shaft 11-3 through a spline, a second chute is formed in the fixed inner shaft 11-2, the rear end of the inner shaft 11-3 is connected with a second limit column, and the second limit column can slide in the second chute, so that the rotation and axial movement of the inner shaft 11-3 are realized.

The drawing mechanism 3 comprises a tensioning oil cylinder, an outer cylinder of the tensioning oil cylinder is fixed on the box body 1, a piston rod of the tensioning oil cylinder is connected with the inner shaft 11-3, and the inner shaft 11-3 is driven to axially move through the expansion and the contraction of the piston rod of the tensioning oil cylinder.

Specifically, the rear end of the inner shaft 11-3 is provided with a first drawing load-bearing ring 11-5, the first drawing load-bearing ring 11-5 is sleeved outside the inner shaft 11-3, a first limiting semi-ring 11-4 is embedded in the first drawing load-bearing ring 11-5, the first limiting semi-ring 11-4 is embedded in the inner shaft 11-3, and a seventh elastic retainer ring 11-14 is arranged outside the first limiting semi-ring 11-4.

The axial of the inner shaft 11-3 is provided with a thrust sliding bearing 11-17, the thrust sliding bearing 11-17 and a second drawing bearing ring 11-16 are connected, the second drawing bearing ring 11-16 is sleeved outside the inner shaft 11-3, the second drawing bearing ring 11-16 is embedded with a second limiting semi-ring 11-15, the second limiting semi-ring 11-15 is embedded on the inner shaft 11-3, and the outer side of the second limiting semi-ring 11-15 is provided with an eighth elastic retainer ring 11-18.

Two ends of a piston rod of the tensioning cylinder are respectively connected to the thrust sliding bearing 11-17 and the first drawing load-bearing ring 11-5.

The grouting extension tube 11-6 is arranged in the inner shaft 11-3, and part of the grouting extension tube 11-6 extends out of the rear end of the inner shaft 11-3.

The connecting nut 11-7 is connected to the front end of the inner shaft 11-3 through the inner shaft nut 11-8, and the connecting nut 11-7 is used for being connected with an anchor rod to lock the anchor rod. The connecting nuts 11-7 with different specifications are replaced according to actual conditions.

In this embodiment, a fourth transparent cover 7-4 and a sealing ring are installed at the connection part of the outer shaft assembly 5 and the box body 1. The first transparent cover 7-1, the second transparent cover 7-2 and the sealing ring are arranged at the joint of the inner shaft assembly 11 and the box body 1, and the third transparent cover 7-3 and the sealing ring are arranged at the joint of the inner shaft assembly 11 and the drawing mechanism 3.

The box body 1 is internally provided with a sensor support 9, the sensor support 9 is provided with two sensors, the sensors are used for identifying the position of the first drawing bearing ring 11-5 so as to judge the position and the posture of the inner shaft 11-3, the two sensors are respectively a first sensor 10-1 and a second sensor 10-2, and the first sensor 10-1 is positioned at the front end of the second sensor 10-2. The sensor is not limited to identifying the position of the first pullout load ring 11-5, but may identify the position of other components on the inner shaft assembly 11.

The device for rotating, drawing and locking the anchor rod is arranged on the operating arm of the anchor rod trolley.

The working process of the utility model is approximately as follows (taking a head-expanding anchor as an example):

step one: drilling holes in a rock wall through rock drilling equipment, and preparing to install an anchor rod after cleaning the holes;

step two: the feeding oil cylinder pushes the whole device to enable the front end of the inner shaft assembly 11 to prop against the tail end of the anchor rod, a piston rod of the tensioning oil cylinder (in a floating state) is pushed until the second sensor 10-2 recognizes the first drawing load-bearing ring 11-5, and the feeding oil cylinder stops feeding;

step three: the second clutch 4-3 is connected with the second spur gear 4-5 by oil supply, the motor rotates positively, the inner shaft 11-3 moves forwards under the action of the spring force of the tensioning oil cylinder while the inner shaft 11-2 is fixed to drive the inner shaft 11-3 to rotate, the connecting nut 11-7 is connected with the anchor rod in a threaded manner until the first sensor 10-1 recognizes the first drawing force-bearing ring 11-5, and the motor stops rotating;

step four: the whole device rotates on a mechanical arm, the anchor rod is pulled out of the anchor rod warehouse, and the oil in the rear cavity of the oil cylinder is tensioned to keep the set pressure; the feeding oil cylinder pushes the whole device to enable the anchor rod to enter the anchor rod hole and reach a preset position;

step five: supplying oil to the two clutches, and enabling the motor to rotate forward to enable the fixed inner shaft 11-2 and the outer shaft 5-1 to simultaneously rotate until the anchor heads of the anchor rods are expanded;

step six: tensioning a front cavity of the oil cylinder to obtain oil, backing a piston rod, tensioning the anchor rod, and drawing the anchor rod to set pretightening force;

step seven: the oil supply enables the first clutch 4-2 to be connected with the first spur gear 4-4, the motor rotates positively, the outer shaft 5-1 drives the sleeve 5-3 to rotate so as to tighten the anchor rod nut to a preset torque, and the motor stops rotating;

step eight: grouting is carried out by connecting grouting lengthening pipe 11-6 with grouting equipment;

step nine: the feeding oil cylinder moves the whole device back to the first sensor 10-1 to identify the first drawing load-bearing ring 11-5;

step ten: oil supply connects the second clutch 4-3 with the second spur gear 4-5, the motor is reversed, the fixed inner shaft 11-2 is reversed and withdrawn from the anchor rod until the second sensor 10-2 recognizes the first pullout load ring 11-5;

step eleven: the feeding cylinder integrally retreats the device, the motor stops rotating after the first sensor 10-1 recognizes the first drawing force-bearing ring 11-5, and the whole device continuously retreats to the initial position.

The utility model can realize the automatic construction of the whole process, realize the jacking, rotating, locking and drawing functions of the anchor rod, is convenient and quick to construct and is beneficial to improving the working efficiency.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A device for rotation, drawing and locking of an anchor rod, characterized in that:

the device comprises a box body, wherein an input shaft assembly is arranged in the box body, and the input shaft assembly is connected with a driving mechanism;

the box body is provided with an outer shaft assembly and an inner shaft assembly, the outer shaft assembly is sleeved outside the inner shaft assembly, and the front end of the inner shaft assembly is connected with the anchor rod; the outer shaft assembly and the inner shaft assembly being connectable to the input shaft assembly, the input shaft assembly being capable of driving the outer shaft assembly and the inner shaft assembly separately or simultaneously;

the inside of box still is provided with drawing mechanism, drawing mechanism with interior axle subassembly is connected, drawing mechanism can drive interior axle subassembly axial displacement.

2. The apparatus for bolt rotation, pullout and locking as claimed in claim 1, wherein:

the novel inner shaft assembly is characterized in that a sensor support is further arranged in the box body, two sensors are arranged on the sensor support and used for identifying the position of the inner shaft assembly, the two sensors are a first sensor and a second sensor respectively, and the first sensor is located at the front end of the second sensor.

3. The apparatus for bolt rotation, pullout and locking as claimed in claim 1, wherein:

the input shaft assembly comprises an input shaft, and two ends of the input shaft are rotationally connected with the box body;

the input shaft is provided with a first clutch, a second clutch, a first spur gear and a second spur gear, the first clutch is used for establishing connection between the first spur gear and the input shaft, and the input shaft drives the first spur gear to rotate; the second clutch is used for establishing connection between the second spur gear and the input shaft, and the input shaft drives the second spur gear to rotate.

4. A device for bolt rotation, pullout and locking as claimed in claim 3, wherein:

the second clutch comprises a clutch inner ring, a clutch outer ring and a clutch plunger, the clutch inner ring is sleeved outside the input shaft, the clutch plunger is sleeved on the clutch inner ring, and the clutch outer ring is sleeved outside the clutch inner ring and the clutch plunger; a key sleeve is arranged on the input shaft, and the clutch plunger is abutted with the key sleeve;

the clutch outer ring is provided with a hydraulic hole, and oil is supplied to the second clutch through the hydraulic hole, so that the clutch plunger can extend out, and the key sleeve is pushed to enter one end of the second spur gear;

the inner side of the end of the second spur gear is also provided with a key sleeve, and after the two key sleeves are connected, the connection between the second spur gear and the input shaft is established.

5. The apparatus for bolt rotation, pullout and locking as claimed in claim 4, wherein:

the inner side of the end of the second spur gear is also provided with a first spring supporting ring and a first compression spring, the first spring supporting ring is sleeved on the input shaft, one end of the first compression spring is connected to the first spring supporting ring, the other end of the first compression spring is in butt joint with a key sleeve on the input shaft, and the first compression spring is used for resetting the key sleeve.

6. A device for bolt rotation, pullout and locking as claimed in claim 3, wherein:

the outer shaft assembly includes an outer shaft having a third spur gear mounted thereon that meshes with the first spur gear.

7. The apparatus for bolt rotation, pullout and locking as claimed in claim 6, wherein:

the front end cover of outer axle is equipped with the sleeve, sleeve part cover is established on the outer axle, seted up first spout on the outer axle, be connected with first spacing post on the sleeve, first spacing post can slide in the first spout, third spring support ring is installed to telescopic rear end, install the second spring support ring on the outer axle, third spring support ring with be equipped with the second compression spring between the second spring support ring.

8. The apparatus for bolt rotation, pullout and locking as claimed in claim 7, wherein:

an outer sleeve is sleeved outside the outer shaft assembly, and one end of the outer sleeve is connected to the box body.

9. A device for bolt rotation, pullout and locking as claimed in claim 3, wherein:

the inner shaft assembly comprises a fixed inner shaft and an inner shaft, the inner shaft is connected to the front end of the fixed inner shaft, a fourth spur gear is mounted on the fixed inner shaft, and the second spur gear is meshed with the fourth spur gear.

10. The apparatus for bolt rotation, pullout and locking as claimed in claim 9, wherein:

the drawing mechanism comprises a tensioning cylinder, an outer cylinder of the tensioning cylinder is fixed on the box body, a piston rod of the tensioning cylinder is connected with the inner shaft, the inner shaft is driven to axially move through expansion and contraction of the piston rod of the tensioning cylinder, a spring is arranged in the tensioning cylinder, and in a floating state of the tensioning cylinder, the piston rod is subjected to pushing force of the spring to push the piston rod outwards.