Tension releasing machine suitable for precast concrete pile / rod production

Abstract

The utility model discloses a tension releasing machine suitable for precast concrete pile / rod production. The tension releasing machine comprises a machine frame, a tension releasing mechanism and a linear coordinate mechanical structure. The rack is provided with a releasing mechanism movement space; the releasing mechanism is installed on the machine frame through the linear coordinate mechanical structure, the releasing mechanism is arranged in the releasing mechanism movement space, and the linear coordinate mechanical structure can drive the releasing mechanism to move in the vertical plane of the releasing mechanism movement space and be located at any position. According to the tension releasing machine suitable for precast concrete pile / rod production, the tension releasing mechanism can be positioned at any position in the vertical plane, then the tension releasing machine can release a locking nut conveniently, and automation of the tension releasing machine on the locking nut is achieved.

Description

TECHNICAL FIELD

[0001] The utility model provides a prefabricated concrete pile production equipment technical field, especially a kind of tensioning machine suitable for prefabricated concrete pile / rod production. BACKGROUND

[0002] In order to make prefabricated concrete pile / rod can withstand higher load in use process, need to be stretched by tensioning machine to the reinforcement cage in concrete pile / rod mold and be locked by locking nut, so that reinforcement cage maintains stretched state in subsequent primary steam curing, stripping and senior steam curing and other steps, to improve the load-carrying capacity of prefabricated concrete pile / rod. After prefabricated concrete pile / rod is formed, locking nut on tensioning rod needs to be loosened, in order to reduce the work intensity of operator, generally loosening locking nut by tensioning machine, however, the space position of existing tensioning machine is inconvenient to adjust, so that tensioning machine is inconvenient to be connected with locking nut, and then the automation of loosening locking nut by tensioning machine cannot be realized. CONTENT OF THE UTILITY MODEL

[0003] The utility model provides a prefabricated concrete pile / rod production uses tensioning machine, solve the space position of existing tensioning machine is inconvenient to adjust, and then the automation of loosening locking nut by tensioning machine cannot be realized.

[0004] The technical means adopted by the utility model are as follows:

[0005] A kind of tensioning machine suitable for prefabricated concrete pile / rod production uses, including rack, tensioning mechanism and linear coordinate mechanical structure;

[0006] The rack is equipped with tensioning mechanism movement space;

[0007] The tensioning mechanism is installed on the rack by the linear coordinate mechanical structure, and the tensioning mechanism is placed in the tensioning mechanism movement space, and the linear coordinate mechanical structure can drive the tensioning mechanism to move in the vertical plane of the tensioning mechanism movement space and be positioned at any position.

[0008] Further, the linear coordinate mechanical structure includes two groups of oppositely arranged chain pulling and releasing devices;

[0009] Each group of chain pulling and releasing devices includes a chain wheel driving mechanism, at least two chain wheels and at least two chains;

[0010] The chain is installed on the frame at one end and on the unwinding mechanism at the other end, and a plurality of sets of the chain suspends the unwinding mechanism in the unwinding mechanism movement space, the chain wheel driving mechanism is installed on the frame, and the chain wheel driving mechanism can drive the chain wheel to rotate, and the chain wheel drives the chain to realize the unwinding and winding of the chain. The change of the unwinding and winding length of the chain of the two sets of chain unwinding and winding devices makes the unwinding mechanism move in the vertical plane of the unwinding mechanism movement space and be positioned at any position.

[0011] Further, the chain driving mechanism is a double-output shaft motor reducer.

[0012] Further, the unwinding mechanism comprises a power source, an outer sleeve, a transmission shaft and a nut sleeve assembly.

[0013] The outer sleeve is connected with the linear coordinate mechanical structure, the transmission shaft is arranged in the outer sleeve and connected with the power source at one end and connected with the nut sleeve assembly at the other end.

[0014] Further, the power source is a hydraulic motor.

[0015] Further, the transmission shaft is a hollow sleeve structure, and the transmission shaft is further sleeved with a spring.

[0016] The nut sleeve assembly comprises a nut sleeve and a claw sleeve.

[0017] The nut sleeve is sleeved on one end of the transmission shaft and abuts against one end of the spring, and when the nut sleeve is subjected to an axial thrust along the transmission shaft,

[0018] The nut sleeve can move along the axis of the transmission shaft at the end of the transmission shaft to compress the spring, and reset under the restoring force of the spring, and the claw sleeve is installed on the outer sleeve.

[0019] Further, a guide rail and a frame horizontal driving mechanism are further included.

[0020] The frame is installed on the guide rail through a roller, and the frame horizontal driving mechanism is installed on the guide rail to drive the frame to move horizontally on the guide rail.

[0021] Further, a linear coordinate mechanical structure mounting rack and a mounting rack driving mechanism are further included, the linear coordinate mechanical structure mounting rack is installed on the frame through a roller, the mounting rack driving mechanism is arranged on the frame to drive the linear coordinate mechanical structure mounting rack to move horizontally, and the linear coordinate mechanical structure is installed on the linear coordinate mechanical structure mounting rack.

[0022] Further, the mounting rack driving mechanism and the frame horizontal driving mechanism are hydraulic cylinders or air cylinders.

[0023] Further, the detection mechanism for detecting the position of the tensioning screw is arranged on the rack.

[0024] Compared with the prior art, the tension releasing machine suitable for prefabricated concrete pile / rod production has the following beneficial effects: the linear coordinate mechanical structure is arranged, the linear coordinate mechanical structure suspends the tension releasing mechanism on the rack, the linear coordinate mechanical structure can drive the tension releasing mechanism to move in the vertical plane of the movement space of the tension releasing mechanism and be positioned at any position, the position of the tension releasing mechanism is adjusted, the position of the tension releasing mechanism corresponds to the position of the locking nut, and the automatic release of the locking nut by the tension releasing machine is realized. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The axial view of the tension releasing machine suitable for prefabricated concrete pile / rod production is disclosed in the utility model;

[0026] Figure 2 The side view of the tension releasing machine suitable for prefabricated concrete pile / rod production is disclosed in the utility model;

[0027] Figure 3 The front view of the tension releasing machine suitable for prefabricated concrete pile / rod production is disclosed in the utility model;

[0028] Figure 4 The Figure 3 sectional view at A-A in the utility model;

[0029] Figure 5 The Figure 4 sectional view at D-D in the utility model;

[0030] Figure 6 The Figure 5 sectional view at F-F in the utility model;

[0031] Figure 7 The Figure 6 enlarged view of part E in the utility model;

[0032] Figure 8 The Figure 4 enlarged view of part B in the utility model;

[0033] Figure 9 The Figure 1 enlarged view of part C in the utility model;

[0034] Figure 10 The schematic diagram of positioning the tension releasing mechanism to the first position by the linear coordinate mechanical structure in the utility model, the lengths of the two groups of chains are same, so that the tension releasing mechanism is positioned at the middle position;

[0035] Figure 11As shown in the schematic view of the second position of the releasing mechanism positioned by the linear coordinate mechanical structure in the application, the lengths of the two groups of chains are different, so that the releasing mechanism is positioned at the right position.

[0036] In the figure: 1, rack, 10, releasing mechanism movement space, 11, guide rail, 12, rack vertical screen driving mechanism, 13, roller, 14, fixing lug, 15, rack base, 16, rack support column, 17, rack upper seat, 2, releasing mechanism, 20, power source, 21, outer sleeve, 22, transmission shaft, 23, nut sleeve assembly, 230, nut sleeve, 231, claw sleeve, 232, limit pin, 24, spring, 25, linear coordinate mechanical structure mounting frame, 26, mounting frame driving mechanism, 3, linear coordinate mechanical structure, 30, chain pulling and releasing device, 300, sprocket driving mechanism, 301, sprocket, 302, chain, 303, arc-shaped baffle. DETAILED DESCRIPTION

[0037] As shown in Figure 1 , Figure 2 and Figure 3 , the releasing machine suitable for prefabricated concrete pile / rod production is disclosed, which comprises a rack 1, a releasing mechanism 2 and a linear coordinate mechanical structure 3.

[0038] The rack 1 is provided with a releasing mechanism movement space 10.

[0039] The releasing mechanism 2 is installed on the rack 1 through the linear coordinate mechanical structure 3, and the releasing mechanism 2 is placed in the releasing mechanism movement space 10, and the linear coordinate mechanical structure 3 can drive the releasing mechanism 2 to move in the vertical plane of the releasing mechanism movement space 10 and be positioned at any position.

[0040] Specifically, in the embodiment, as shown in Figure 1 , the rack 1 comprises a rack base 15, a rack support column 16 and a rack upper seat 17; four rack support columns 16 are arranged at the four corners of the rack base 15, and the rack upper seat 17 is fixed on the rack support columns 16, and the releasing mechanism movement space 10 is formed between the rack base 15 and the rack upper seat 17.

[0041] As shown in Figure 3 , Figure 4 , Figure 5 and Figure 6 , the linear coordinate mechanical structure 3 comprises two groups of chain pulling and releasing devices 30 arranged oppositely.

[0042] Each group of chain pulling and releasing devices 30 comprises a sprocket driving mechanism 300, at least two sprockets 301 and at least two chains 302.

[0043] The chain 302 is fixedly connected to the rack base 17 at one end and fixedly connected to the unwinding mechanism 2 at the other end, and a plurality of the chains 302 suspend the unwinding mechanism 2 in the unwinding mechanism movement space 10; the sprocket drive mechanism 300 is installed on the rack 1, and the two sets of chain drive mechanisms and the unwinding mechanism form a triangular arrangement and are connected by two sets of chains (each set of chain includes at least two chains), the sprocket drive mechanism 300 can drive the sprocket 301 to rotate, the sprocket 301 drives the chain 302 to realize the unwinding and winding of the chain 302, and the change of the unwinding and winding length of the chain 302 of the two sets of chain unwinding and winding devices 30 makes the unwinding mechanism 2 move in the vertical plane of the unwinding mechanism movement space 10 and be positioned at any position, that is, as shown in Figure 10 and Figure 11 The two sets of sprocket drive mechanisms 300 and the unwinding mechanism 2 form a triangular structure in the vertical plane, and the unwinding mechanism is connected to the two sets of sprocket drive mechanisms through the two sets of sprockets, and when the unwinding and winding length of the two sets of sprockets changes, G represents the chain, H represents the unwinding mechanism, the horizontal distance and the vertical distance of the unwinding mechanism 2 relative to the two sets of sprocket drive mechanisms change, as shown in Figure 10 The lengths of the two sets of chains are the same, at this time, the unwinding mechanism is in the middle position of the two sets of chain unwinding and winding devices, and when the unwinding and winding length of the chain changes, the unwinding mechanism can be positioned at different heights in the middle (as shown by the dashed line in the figure), as shown in Figure 11 The lengths of the two sets of chains (the left and right chains) are different, at this time, the unwinding mechanism deviates from the middle position of the two sets of chain unwinding and winding devices, and according to the different unwinding and winding lengths of the two sets of chains, the unwinding mechanism can move to any position, so that the unwinding mechanism can move in the vertical plane of the unwinding mechanism movement space 10 and be positioned at any position, and the unwinding mechanism can be automatically adjusted to the position corresponding to the position of the tensioning screw in the unwinding mechanism movement space by the unwinding machine, so as to realize the unwinding and winding of the locking nut on the tensioning screw, realize the automation of the unwinding and winding of the locking nut, and the unwinding machine disclosed by the application has the advantages of simple structure, convenient control and the like.

[0044] Further, as shown in Figure 5 and Figure 7As shown, the chain drive mechanism 300 is a dual-output shaft motor reducer. A sprocket is mounted on each of the two output shafts of the motor reducer. Each set of chain pulling and releasing devices 30 includes two chains 302, spaced a certain distance apart along the axis of the releasing mechanism 2 to ensure the releasing mechanism is horizontal, facilitating the loosening and releasing of the locking nut. Furthermore, to ensure reliable transmission between the sprocket and the chain, an arc-shaped baffle 303 is provided on the outer side of the sprocket. The arc-shaped baffle is located on the outer side of the sprocket and corresponds to the position where the chain engages with the sprocket.

[0045] In this embodiment, as Figure 4 , Figure 8 and Figure 9 As shown, the tensioning mechanism 2 includes a power source 20, an outer sleeve 21, a drive shaft 22, and a nut sleeve assembly 23;

[0046] The outer sleeve 21 is connected to the linear coordinate mechanical structure 3. The drive shaft 22 is placed inside the outer sleeve 21, with one end connected to the power source 20 and the other end connected to the nut sleeve assembly 23. Specifically, the power source 20 is fixed at one end of the outer sleeve 21, and the output shaft of the power source 20 is connected to the drive shaft 22. The drive shaft 22 is placed inside the outer sleeve 21, and the nut sleeve assembly 23 is installed at the other end of the drive shaft 22. The power source 20 drives the nut sleeve assembly 23 to rotate through the drive shaft 22. The nut sleeve assembly 23 includes a nut sleeve 230 that can engage with the locking nut, thereby realizing the loosening and releasing of the locking nut.

[0047] Furthermore, the power source 20 is a hydraulic motor, which has the advantages of high rotation speed, high power and low power consumption, thus enabling the rapid loosening and unloosening of the nut sleeve with low energy consumption.

[0048] Furthermore, such as Figure 4 As shown, it also includes a guide rail 11 and a frame horizontal drive mechanism 12;

[0049] The frame 1 is mounted on the guide rail 11 via rollers 13. The frame horizontal drive mechanism 12 is mounted on the guide rail 11 to drive the frame 1 to move horizontally on the guide rail 11. In this embodiment, the frame base 15 is a box structure with an open bottom. Rollers 13 are mounted on the frame base 15, and the frame is placed on the guide rail via the rollers 13. A fixing lug 14 is provided on the guide rail 11. The frame horizontal drive mechanism 12 is provided inside the frame base 15. The frame horizontal drive mechanism 12 is a cylinder or hydraulic cylinder. One end of the cylinder or hydraulic cylinder is connected to the fixing lug 14, and the other end is connected to the frame base 15. The cylinder or hydraulic cylinder can drive the frame 1 to move horizontally on the guide rail 11, so as to push the unwinding machine to the side close to the locking nut. In this embodiment, the frame horizontal drive mechanism 12 and the fixing lug 14 are placed inside the frame base.

[0050] Furthermore, such as Figure 5 and Figure 7 As shown, it also includes a linear coordinate mechanical structure mounting bracket 25 and a mounting bracket drive mechanism 26. The linear coordinate mechanical structure mounting bracket 25 is mounted on the frame 1 via rollers 13. The mounting bracket drive mechanism 26 is disposed on the frame 1 to drive the linear coordinate mechanical structure mounting bracket 25 to move horizontally. The linear coordinate mechanical structure 3 is mounted on the linear coordinate mechanical structure mounting bracket 25. Specifically, the upper frame 17 is a box structure with an opening on the lower side. A linear coordinate mechanical structure mounting frame 25 is provided inside the box. Rollers 13 are provided on both sides of the linear coordinate mechanical structure mounting frame 25. A sliding groove structure is formed on both sides of the box, and the rollers are set in the sliding groove. The linear coordinate mechanical structure mounting frame 25 can move horizontally within the upper frame through the rollers 13. The chain pulling and releasing device is installed on the linear coordinate mechanical structure mounting frame. A mounting frame driving mechanism 26 is also provided inside the upper frame. In this embodiment, the mounting frame driving mechanism is a hydraulic cylinder or a pneumatic cylinder. One end of the hydraulic cylinder or pneumatic cylinder is connected to the upper frame, and the other end is connected to the linear coordinate mechanical structure mounting frame. The hydraulic cylinder or pneumatic cylinder can drive the linear coordinate mechanical structure mounting frame to move horizontally relative to the upper frame, thereby realizing the horizontal movement of the tension releasing mechanism. By installing the chain release device on the linear coordinate mechanical structure mounting frame, and the mounting frame drive mechanism can drive the linear coordinate mechanical structure mounting frame to move horizontally relative to the upper seat of the frame, it is possible to keep the frame position fixed when the release machine disclosed in this utility model is a certain distance away from the tensioning machine. The release mechanism moves horizontally under the drive of the mounting frame drive mechanism, thereby realizing the rapid loosening and releasing of the locking nuts on different tensioning rods.

[0051] Furthermore, the drive shaft 22 is a hollow sleeve structure, and a spring 24 is also sleeved on the outside of the drive shaft 21;

[0052] The nut sleeve assembly 23 includes a nut sleeve 230 and a claw sleeve 231;

[0053] The nut sleeve 230 is fitted onto one end of the transmission shaft 22 and abuts against one end of the spring 24. When the nut sleeve 230 is subjected to an axial thrust along the transmission shaft 22, the nut sleeve 230 can move along the axial direction of the transmission shaft 22 at the end of the transmission shaft 22 to compress the spring 24, and reset under the restoring force of the spring 24. The claw sleeve 231 is installed on the outer sleeve 21. Specifically, the nut sleeve 230 is fitted onto the end of the transmission shaft, and the end of the transmission shaft is provided with a limiting pin 232. The nut sleeve can move on the transmission shaft and its movement distance is limited by the limiting pin. The drive shaft is a hollow sleeve structure used to accommodate the end of the tension rod. During the engagement of the unwinding mechanism and the locking nut, the hollow sleeve of the drive shaft guides the tension rod, facilitating the engagement of the nut sleeve with the locking nut. Furthermore, because a spring is fitted on the drive shaft, and the spring abuts against the nut sleeve, when the unwinding mechanism approaches and contacts the locking nut, the nut sleeve can retract during contact (collision) with the locking nut, and then reset under the push of the spring, engaging with the locking nut. This reduces the contact force during the contact process between the nut sleeve and the locking nut, ensuring the service life of the equipment. Additionally, when the locking nut is tightened via the nut sleeve, the nut sleeve can move on the drive shaft to retract its position.

[0054] Furthermore, it also includes a detection mechanism for detecting the position of the tensioning screw, which is installed on the frame 1. The detection mechanism can be used to detect the position of the tensioning screw. In this embodiment, the detection device is installed on the lower side of the upper seat of the frame so that the control system can automatically adjust the position of the tensioning mechanism according to the detected position information through linear coordinate mechanical adjustment, so that the position of the tensioning mechanism corresponds to the position of the tensioning screw, thereby realizing the loosening and releasing of the locking nut.

[0055] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tension release machine suitable for use in the production of precast concrete piles / poles, characterized in that: It includes a frame (1), a tensioning mechanism (2), and a linear coordinate mechanical structure (3); The frame (1) is provided with a tensioning mechanism movement space (10); The tension release mechanism (2) is mounted on the frame (1) via the linear coordinate mechanical structure (3), and the tension release mechanism (2) is placed within the tension release mechanism motion space (10). The linear coordinate mechanical structure (3) can drive the tension release mechanism (2) to move in the vertical plane of the tension release mechanism motion space (10) and be positioned at any position.

2. The tension release machine for use in the production of precast concrete piles / poles according to claim 1, characterized in that: The linear coordinate mechanical structure (3) includes two sets of chain pulling and releasing devices (30) arranged opposite to each other; Each of the chain pulling and releasing devices (30) includes a sprocket drive mechanism (300), at least two sprockets (301) and at least two chains (302). One end of the chain (302) is mounted on the frame (1), and the other end is mounted on the tension release mechanism (2). Multiple sets of chains (302) suspend the tension release mechanism (2) within the tension release mechanism movement space (10). The sprocket drive mechanism (300) is mounted on the frame (1). The sprocket drive mechanism (300) can drive the sprocket (301) to rotate. The sprocket (301) drives the chain (302) to move, thereby pulling and releasing the chain (302). The change in the pulling and releasing length of the chain (302) of the two sets of chain pulling and releasing devices (30) allows the tension release mechanism (2) to move in the vertical plane of the tension release mechanism movement space (10) and be positioned at any position.

3. The tension release machine for use in the production of precast concrete piles / poles according to claim 2, characterized in that: The sprocket drive mechanism (300) is a motor reducer with dual output shafts.

4. The tension release machine for use in the production of precast concrete piles / poles according to any one of claims 1 to 3, characterized in that: The tensioning mechanism (2) includes a power source (20), an outer sleeve (21), a drive shaft (22), and a nut sleeve assembly (23). The outer sleeve (21) is connected to the linear coordinate mechanical structure (3), and the transmission shaft (22) is placed in the outer sleeve (21) with one end connected to the power source (20) and the other end connected to the nut sleeve assembly (23).

5. The tension release machine for use in the production of precast concrete piles / poles according to claim 4, characterized in that: The power source (20) is a hydraulic motor.

6. The tension release machine for use in the production of precast concrete piles / poles according to claim 4, characterized in that: The drive shaft (22) is a hollow sleeve structure, and a spring (24) is also sleeved on the outside of the drive shaft (22). The nut sleeve assembly (23) includes a nut sleeve (230) and a claw sleeve (231); The nut sleeve (230) is sleeved on one end of the drive shaft (22) and abuts against one end of the spring (24). When the nut sleeve (230) is subjected to an axial thrust along the drive shaft (22), the nut sleeve (230) can move along the axial direction of the drive shaft (22) at the end of the drive shaft (22) and compress the spring (24), and reset under the restoring force of the spring (24). The claw sleeve (231) is installed on the outer sleeve (21).

7. The tension release machine for use in the production of precast concrete piles / poles according to any one of claims 1 to 3, characterized in that: It also includes a guide rail (11) and a frame horizontal drive mechanism (12). The frame (1) is mounted on the guide rail (11) via rollers (13), and the frame horizontal drive mechanism (12) is mounted on the guide rail (11) to drive the frame (1) to move horizontally on the guide rail (11).

8. The tension release machine for use in the production of precast concrete piles / poles according to claim 7, characterized in that: It also includes a linear coordinate mechanical structure mounting bracket (25) and a mounting bracket drive mechanism (26). The linear coordinate mechanical structure mounting bracket (25) is mounted on the frame (1) via rollers (13). The mounting bracket drive mechanism (26) is set on the frame (1) to drive the linear coordinate mechanical structure mounting bracket (25) to move horizontally. The linear coordinate mechanical structure (3) is mounted on the linear coordinate mechanical structure mounting bracket (25).

9. The tension release machine for use in the production of precast concrete piles / poles according to claim 8, characterized in that: The mounting frame drive mechanism (26) and the frame horizontal drive mechanism (12) are hydraulic cylinders or pneumatic cylinders.

10. The tension release machine for use in the production of precast concrete piles / poles according to claim 1, characterized in that: It also includes a detection mechanism installed on the frame (1) for detecting the position of the tensioning screw.

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