Prestressed anchor rod tensioning device

Abstract

The utility model discloses a pre-stressed anchor rod tensioning device, which relates to the technical field of pre-stressed anchor rod tensioning equipment and comprises a cross beam, a supporting unit, a moving unit and a power fixing unit. Supporting units are mounted at the lower ends of the beams; each supporting unit comprises limiting strips, fixing plates, second threaded columns, first threaded cylinders and supporting plates, the four limiting strips are fixedly connected to the four corners of the lower end of the cross beam, the fixing plates are fixedly connected to the lower ends of every two adjacent limiting strips, the second threaded columns are fixedly connected to the lower ends of the fixing plates, and the outer sides of the second threaded columns are in threaded connection with the first threaded cylinders; the lower end of each first threaded cylinder is fixedly connected with a supporting plate. The moving unit is mounted on the supporting unit; according to the pre-stressed anchor rod tensioning device, a hydraulic machine can drive the device to move, manpower is saved, the device can be conveniently stored through the telescopic pull rod, and the device can be more convenient to use by changing the supporting legs.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed anchor rod tensioning equipment, in particular to a prestressed anchor rod tensioning device. Background Art

[0002] The advantage of anchor rods is that they ensure the stability of the rock mass after construction. During the construction of the cave, prestressed anchor rods need to be set on the inner wall of the cave. After the prestressed anchor rods are inserted into the holes, a tensioning instrument is required to apply a certain tension to the prestressed anchor rods. After the workers' construction, the length of the prestressed anchor rods exposed outside is only 20 cm, and the length required for tensioning by the tensioning instrument is at least 60 cm.

[0003] Among them, a prestressed anchor tensioning device proposed in the prior art with the authorization announcement number CN218322734U includes a prestressed anchor arranged on a cavern, an annular sleeve is fixedly provided on the prestressed anchor, a frame is provided at the bottom of the cavern, a tensioning instrument is provided at the bottom of the frame, a tensioning extension rod is provided on the tensioning instrument, the tensioning extension rod is slidably connected to the frame, a mounting seat is fixedly installed on the top of the tensioning extension rod, and a connecting mechanism is provided on the mounting seat;

[0004] In the prior art, it is not possible to use a hydraulic machine to drive the device to move to save manpower, the device is not convenient to store, and the inability to change the supporting feet makes the device more inconvenient and dangerous when using. For this reason, we propose a prestressed anchor rod tensioning device. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a prestressed anchor rod tensioning device, which can use a hydraulic machine to drive the device to move to save manpower, can be stored conveniently through a retractable pull rod, and can make the device more convenient to use by changing the supporting feet, thereby effectively solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prestressed anchor tensioning device, comprising a crossbeam, a supporting unit, a moving unit and a power fixing unit;

[0007] Crossbeam: A support unit is installed at the lower end;

[0008] Support unit: comprising a limit bar, a fixing plate, a second threaded column, a first threaded barrel and a support plate, wherein four limit bars are fixedly connected to the four corners of the lower end of the crossbeam, the lower ends of two adjacent limit bars are fixedly connected to a fixing plate, the lower end of each fixing plate is fixedly connected to a second threaded column, the outer side of each second threaded column is threadedly connected to a first threaded barrel, and the lower end of each first threaded barrel is fixedly connected to a support plate;

[0009] Mobile unit: installed on the supporting unit;

[0010] Power fixing unit: installed on the supporting unit.

[0011] The fixing plate is fixed by the limit bar, and the movement of the fixing device is limited by the limit bar. By rotating the threaded tube, the support plate moves under the action of the thread, so that a better placement angle is achieved when the device is used, thereby achieving the effect of prestressed anchor rod tensioning.

[0012] Furthermore, the movable unit includes a hydraulic press, a pushing plate, a limit block and a limit mounting bar. The limit mounting bars are slidably connected between the four limit bars. The left and right ends of the limit mounting bars are fixedly connected to the limit blocks. The other end of each limit block is fixedly connected to the pushing plate. Two hydraulic presses are fixedly connected to the left and right sides of the lower end of the beam, and the lower end of each hydraulic press is fixedly connected to the pushing plate.

[0013] The push plate is moved by the extension and retraction of the hydraulic press, the limit block and the hydraulic press are moved by the push plate, the limit installation strip is limited by the limit strip and the limit block, and the limit installation strip is driven to generate tension by the movement of the hydraulic press, thereby achieving the effect of prestressed anchor rod tensioning.

[0014] Furthermore, the mobile unit also includes a sliding sleeve, a fixed arm and a fixed clamp. Two sliding sleeves are slidably connected to the outer side of the limit mounting strip. The lower end of each sliding sleeve is fixedly connected to a fixed arm, and the adjacent ends of the two fixed arms are fixedly connected to a fixed clamp.

[0015] The sliding sleeve moves by the action of the mechanical fixing device, and the sliding sleeves move relative to each other under the action of the limiting installation bar. The prestressed anchor rod is fixed by the fixing arm and the fixing clamp, and tensioning is performed under the drive of the hydraulic press.

[0016] Furthermore, the power fixing unit includes a mounting plate, a mounting block, a movable column, a connecting rod, a positioning column, a movable block and a threaded rod, the upper ends of the two sliding sleeves are fixedly connected to the mounting plates, the middle part of the upper end of the limit mounting strip is fixedly connected to the mounting block, the front ends of the two mounting plates are fixedly connected to the movable column, the upper end of the mounting block is rotatably connected to the threaded rod, the threaded rod is threadedly connected to the movable block, the front end of the movable block is fixedly connected to the positioning column, and the two ends of the connecting rod are rotatably connected to the movable column and the positioning column respectively.

[0017] The threaded rod is driven by the power component to rotate, and the movable block is moved by the rotation of the threaded rod. When the movable block moves, the angle of the connecting rod connected to the movable block changes, and finally the installation plates are driven closer to each other, thereby driving the sliding sleeve to move, thereby achieving the effect of fixing the prestressed anchor rod.

[0018] Furthermore, the power fixing unit also includes a telescopic rod and a motor, the lower end of the beam is fixedly connected to the motor, the output shaft of the motor is rotatably connected to one end of the telescopic rod, and the other end of the telescopic rod is fixedly connected to the threaded rod.

[0019] The telescopic rod is driven to rotate by a motor, thereby driving the threaded rod to rotate, and the threaded rod enables the action components inside the device to move normally when moving.

[0020] Furthermore, it also includes threaded column 1, threaded tube 2, a handle and a control panel, the upper end of the crossbeam is fixedly connected to threaded column 1, the outer side of threaded column 1 is threadedly connected to threaded tube 2, the upper end of threaded tube 2 is fixedly connected to the handle, and the upper end of the handle is fixedly connected to the control panel.

[0021] The electrical part of the device is controlled through the control panel, and the reserved pull rod of the device can be adjusted through the action of the threaded barrel 2 and the threaded column 1, and the device is easy to carry and place.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the prestressed anchor rod tensioning device has the following advantages:

[0023] 1. The prestressed anchor rod tensioning device can use a hydraulic machine to drive the device to move and save manpower. The device can save unnecessary manpower, so that the prestressed anchor rod can be tensioned quickly through the tensioning instrument.

[0024] 2. The prestressed anchor rod tensioning device can be stored conveniently by means of a retractable pull rod, and can be made more convenient to use by changing the supporting feet. The changeable supporting feet can also make the device safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the left side structure of the utility model;

[0027] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0028] In the figure: 1 crossbeam, 2 threaded column one, 3 support unit, 31 limit strip, 32 fixed plate, 33 threaded column two, 34 threaded cylinder one, 35 support plate, 4 moving unit, 41 hydraulic press, 42 push plate, 43 limit block, 44 limit mounting strip, 45 sliding sleeve, 46 fixed arm, 47 fixing clamp, 5 power fixing unit, 51 mounting plate, 52 mounting block, 53 movable column, 54 connecting rod, 55 positioning column, 56 movable block, 57 threaded rod, 58 telescopic rod, 59 motor, 6 threaded cylinder two, 7 handle, 8 control panel. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-3 , This embodiment provides a technical solution for a prestressed anchor rod tensioning device: a prestressed anchor rod tensioning device, comprising a crossbeam 1, a support unit 3, a moving unit 4 and a power fixing unit 5;

[0031] Beam 1: A support unit 3 is installed at the lower end;

[0032] Support unit 3: includes a limit bar 31, a fixing plate 32, a threaded column 33, a threaded barrel 34 and a support plate 35. Four limit bars 31 are fixedly connected to the four corners of the lower end of the beam 1. The lower ends of two adjacent limit bars 31 are fixedly connected to a fixing plate 32. The lower end of each fixing plate 32 is fixedly connected to a threaded column 33. The outer side of each threaded column 33 is threadedly connected to a threaded barrel 34. The lower end of each threaded barrel 34 is fixedly connected to a support plate 35. The fixing plate 32 is fixed by the limit bar 31, and the movement of the fixing device is limited by the limit bar 31. The support plate 35 moves under the action of the thread by rotating the threaded barrel 34, so that the device has a better placement angle when in use, thereby achieving the effect of prestressed anchor tensioning.

[0033] Mobile unit 4: installed on the supporting unit 3; the mobile unit 4 comprises a hydraulic press 41, a pushing plate 42, a limit block 43 and a limit mounting strip 44, the limit mounting strip 44 is slidably connected between the four limit bars 31, the left and right ends of the limit mounting strip 44 are fixedly connected to the limit blocks 43, the other end of each limit block 43 is fixedly connected to the pushing plate 42, the left and right sides of the lower end of the beam 1 are fixedly connected to two hydraulic presses 41, and the lower end of each hydraulic press 41 is fixedly connected to the pushing plate 42.

[0034] The push plate 42 is moved by the extension and retraction of the hydraulic press 41, and the limit block 43 and the hydraulic press 41 are moved by the push plate 42. The limit installation strip 44 is limited by the limit strip 31 and the limit block 43, and the limit installation strip 44 is driven to generate tension by the movement of the hydraulic press 41, thereby achieving the effect of prestressed anchor rod tensioning.

[0035] The mobile unit 4 also includes a sliding sleeve 45, a fixed arm 46 and a fixed clamp 47. Two sliding sleeves 45 are slidably connected to the outer side of the limiting mounting strip 44. The lower end of each sliding sleeve 45 is fixedly connected to a fixed arm 46, and the adjacent ends of the two fixed arms 46 are fixedly connected to a fixed clamp 47.

[0036] The sliding sleeve 45 moves by the action of the mechanical fixing device, and moves relative to each other under the action of the limiting installation strip 44 , and the prestressed anchor rod is fixed by the fixing arm 46 and the fixing clamp 47 , and tensioning is performed under the drive of the hydraulic press 41 .

[0037] Power fixing unit 5: installed on the supporting unit 3, the power fixing unit 5 comprises a mounting plate 51, a mounting block 52, a movable column 53, a connecting rod 54, a positioning column 55, a movable block 56 and a threaded rod 57. The upper ends of the two sliding sleeves 45 are fixedly connected with the mounting plate 51, the middle part of the upper end of the limiting mounting strip 44 is fixedly connected with the mounting block 52, the front ends of the two mounting plates 51 are fixedly connected with the movable column 53, the upper end of the mounting block 52 is rotatably connected with the threaded rod 57, the threaded rod 57 is threadedly connected to the movable block 56, the front end of the movable block 56 is fixedly connected with the positioning column 55, and the two ends of the connecting rod 54 are rotatably connected with the movable column 53 and the positioning column 55 respectively.

[0038] The threaded rod 57 is driven by the power assembly to rotate, and the movable block 56 is moved by the rotation of the threaded rod 57. When the movable block 56 moves, the angle of the connecting rod 54 connected to the movable block 56 changes, and finally the mounting plates 51 are driven to approach each other, thereby driving the sliding sleeve 45 to move, thereby achieving the effect of fixing the prestressed anchor rod.

[0039] The power fixing unit 5 also includes a telescopic rod 58 and a motor 59 . The lower end of the beam 1 is fixedly connected to the motor 59 . The output shaft of the motor 59 is rotatably connected to one end of the telescopic rod 58 . The other end of the telescopic rod 58 is fixedly connected to the threaded rod 57 .

[0040] The telescopic rod 58 is driven to rotate by the motor 59, thereby driving the threaded rod 57 to rotate, and the threaded rod 57 allows the action components inside the device to move normally when moving.

[0041] It also includes a threaded column 2, a threaded barrel 6, a handle 7 and a control panel 8. The upper end of the crossbeam 1 is fixedly connected to the threaded column 2, the outer side of the threaded column 2 is threadedly connected to the threaded barrel 6, the upper end of the threaded barrel 6 is fixedly connected to the handle 7, and the upper end of the handle 7 is fixedly connected to the control panel 8.

[0042] The electrical part of the device is controlled by the control panel 8, and the reserved pull rod of the device can be adjusted through the action of the threaded barrel 2 6 and the threaded column 1 2, which is convenient for carrying and placement.

[0043] The working principle of the prestressed anchor tensioning device provided by the utility model is as follows: the fixing plate 32 is fixed by the limiting strip 31, and the movement of the fixing device is limited by the limiting strip 31. The support plate 35 is moved under the action of the thread by rotating the threaded barrel 34, so that the device has a better placement angle when in use, thereby achieving the effect of prestressed anchor tensioning. The push plate 42 is driven to move by the extension and contraction of the hydraulic press 41, and the limiting block 43 and the hydraulic press 41 are driven to move by the push plate 42. The limiting installation strip 44 is limited by the limiting strip 31 and the limiting block 43, and the limiting installation strip 44 is driven to generate tension by the movement of the hydraulic press 41, so as to achieve the effect of prestressed anchor tensioning. The sliding sleeve 45 moves by the action of the mechanical fixing device, and the sliding sleeves 45 move mutually under the action of the limiting installation strip 44, and the prestressed anchor is fixed by the fixing arm 46 and the fixing clamp 47, and the tensioning effect is performed under the drive of the hydraulic press 41. The threaded rod 57 is driven by the power assembly to rotate, and the movable block 56 is moved by the rotation of the threaded rod 57. When the movable block 56 moves, the angle of the connecting rod 54 connected to the movable block 56 changes, and finally the mounting plates 51 are driven to approach each other, thereby driving the sliding sleeve 45 to move, so as to achieve the effect of fixing the prestressed anchor rod. The telescopic rod 58 is driven by the motor 59 to rotate, thereby driving the threaded rod 57 to rotate, and the action assembly inside the device can move normally when it moves through the threaded rod 57. The electrical part of the device is controlled by the control panel 8, and the reserved pull rod of the device can be adjusted through the action of the threaded barrel 26 and the threaded column 12, which is convenient for carrying and placement.

[0044] It is worth noting that the input end of the motor 59 disclosed in the above embodiment is electrically connected to the output end of the external power supply through an external PLC controller, the motor 59 adopts a servo motor, and the external PLC controller controls the operation of the motor 59 using a method commonly used in the prior art.

[0045] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A prestressed anchor rod tensioning device, characterized in that: It comprises a crossbeam (1), a supporting unit (3), a moving unit (4) and a power fixing unit (5); Crossbeam (1): A support unit (3) is installed at the lower end; The support unit (3) comprises a limit strip (31), a fixing plate (32), a second threaded column (33), a first threaded barrel (34) and a support plate (35), wherein the four corners of the lower end of the crossbeam (1) are fixedly connected with four limit strips (31), the lower ends of two adjacent limit strips (31) are fixedly connected with a fixing plate (32), the lower end of each fixing plate (32) is fixedly connected with a second threaded column (33), the outer side of each second threaded column (33) is threadedly connected with a first threaded barrel (34), and the lower end of each first threaded barrel (34) is fixedly connected with a support plate (35); Mobile unit (4): installed on the supporting unit (3); Power fixing unit (5): installed on the supporting unit (3).

2. A prestressed anchor rod tensioning device according to claim 1, characterized in that: The moving unit (4) comprises a hydraulic press (41), a pushing plate (42), a limit block (43) and a limit installation strip (44); the limit installation strip (44) is slidably connected between the four limit bars (31); the limit installation strip (44) is fixedly connected to the limit blocks (43) at both ends; the other end of each limit block (43) is fixedly connected to the pushing plate (42); the left and right sides of the lower end of the crossbeam (1) are fixedly connected to two hydraulic presses (41); the lower end of each hydraulic press (41) is fixedly connected to the pushing plate (42).

3. A prestressed anchor rod tensioning device according to claim 2, characterized in that: The mobile unit (4) further comprises a sliding sleeve (45), a fixed arm (46) and a fixed clamp (47); two sliding sleeves (45) are slidably connected to the outer side of the position-limiting mounting strip (44); the lower end of each sliding sleeve (45) is fixedly connected to a fixed arm (46); and adjacent ends of the two fixed arms (46) are fixedly connected to a fixed clamp (47).

4. A prestressed anchor rod tensioning device according to claim 3, characterized in that: The power fixing unit (5) comprises a mounting plate (51), a mounting block (52), a movable column (53), a connecting rod (54), a positioning column (55), a movable block (56) and a threaded rod (57); the upper ends of the two sliding sleeves (45) are fixedly connected with the mounting plates (51); the middle part of the upper end of the position-limiting mounting strip (44) is fixedly connected with the mounting block (52); the front ends of the two mounting plates (51) are fixedly connected with the movable column (53); the upper ends of the mounting blocks (52) are rotatably connected with the threaded rod (57); the threaded rod (57) is threadedly connected to the movable block (56); the front end of the movable block (56) is fixedly connected with the positioning column (55); and the two ends of the connecting rod (54) are rotatably connected to the movable column (53) and the positioning column (55) respectively.

5. A prestressed anchor rod tensioning device according to claim 4, characterized in that: The power fixing unit (5) further comprises a telescopic rod (58) and a motor (59); the lower end of the crossbeam (1) is fixedly connected to the motor (59); the output shaft of the motor (59) is rotatably connected to one end of the telescopic rod (58); and the other end of the telescopic rod (58) is fixedly connected to the threaded rod (57).

6. A prestressed anchor rod tensioning device according to claim 1, characterized in that: It also comprises a threaded column (2), a threaded barrel (6), a handle (7) and a control panel (8); the upper end of the crossbeam (1) is fixedly connected to the threaded column (2); the outer side of the threaded column (2) is threadedly connected to the threaded barrel (6); the upper end of the threaded barrel (6) is fixedly connected to the handle (7); and the upper end of the handle (7) is fixedly connected to the control panel (8).

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