CN212621226U - Attached tension measuring device - Google Patents
Attached tension measuring device Download PDFInfo
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- CN212621226U CN212621226U CN202021533038.2U CN202021533038U CN212621226U CN 212621226 U CN212621226 U CN 212621226U CN 202021533038 U CN202021533038 U CN 202021533038U CN 212621226 U CN212621226 U CN 212621226U
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Abstract
The utility model discloses an attached tension measuring device, which comprises a guy cable fixing part, a connecting block, a power part and a force measuring part; the inhaul cable fixing part comprises a fixing rod and a fixing block which are perpendicular to each other; the fixing block is provided with a first fixing hole for the fixing rod to pass through; the connecting block and the fixed block are arranged in parallel at intervals, and the connecting block is vertically provided with a guide hole; the fixed block is used for connecting the end part of the rope; one end of the force measuring component is connected with the fixed rod, and the other end of the force measuring component is connected with the connecting block; one end of the power component is connected with the fixed block, and the other end of the power component is connected with the connecting block so as to drive the fixed block to slide along the fixed rod through the power component. The technical scheme of the utility model in, the fixed block is connected through the power part, connecting block, dynamometry part and the dead lever that connect gradually, under the condition that does not change the atress direction of rope, directly carries out the precision measurement to the pulling force of the rope that the fixed block received, obtains accurate measuring result.
Description
Technical Field
The utility model relates to a tensile test equipment technical field, concretely relates to attached type tension measuring device.
Background
The rope is widely applied to occasions of high-rise stay rope tower mast structures, cable-stayed bridges, suspension bridges, tie rod arches and cable construction, and has the advantages of large rope tension, large installation difficulty, large tension accurate control difficulty and inaccurate control of operation and maintenance tension values. The tension of the steel cables such as the cable of the high-rise guyed tower mast structure, the inclined cable in a cable-stayed bridge, the main cable and the sling in a suspension bridge, the sling in a tie rod arch, the cable in construction and the like is an extremely important design parameter. The method has important practical significance in accurately measuring and estimating the steel rope tension of the rope. At present, a vibration method is widely adopted at home and abroad to measure and estimate the steel cable tension of a rope, namely the steel cable tension of the rope is estimated through the measured natural frequency of the rope vibration. The natural frequency of the rope is influenced by the tensile force of the steel rope, the bending rigidity, the vertical span ratio, the supporting conditions of the two ends, the inclination angle and the like of the rope. Therefore, the rope tension obtained by the vibration method is only an approximate value indirectly obtained after assumption and conversion, and it is not easy to obtain an accurate rope tension.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an attached tension measuring device aims at solving the difficult problem that obtains accurate rope wire rope pulling force value of current measuring device, especially major diameter, large-tonnage pulling force wire rope's pulling force value measurement problem.
In order to achieve the purpose, the utility model provides a guy cable fixing device, which comprises a guy cable fixing part, a connecting block, a power part and a force measuring part; the inhaul cable fixing part comprises a fixing rod and a fixing block which are perpendicular to each other; the fixing block is provided with a first fixing hole for the fixing rod to pass through; the connecting block and the fixed block are arranged in parallel at intervals, and a guide hole is vertically formed in the connecting block; the fixing block is used for connecting the end part of a rope so that the rope passes through the guide hole along the direction parallel to the fixing rod; one end of the force measuring component is connected with the fixed rod, and the other end of the force measuring component is connected with the connecting block; one end of the power component is connected with the fixed block, and the other end of the power component is connected with the connecting block so as to drive the fixed block to slide along the fixed rod through the power component.
Preferably, the force measuring component comprises a sensor and a connecting rod, one end of the sensor is connected with the fixing rod, and the other end of the sensor is connected with the connecting block through the connecting rod.
Preferably, the connecting block both ends are all seted up the second connecting hole, two the axis of second connecting hole about the axis symmetry setting of guiding hole, be provided with the external screw thread on the connecting rod, two the connecting rod passes respectively the connecting block both ends the second connecting hole, seted up of connecting block the both sides of second connecting hole all are provided with second fixation nut, second fixation nut with the external screw thread of connecting rod carries out threaded connection.
Preferably, the power component includes first bracing piece, second bracing piece, pneumatic cylinder and oil pump, the stiff end of pneumatic cylinder with first bracing piece is connected, the expansion end of pneumatic cylinder with the second bracing piece is connected, first bracing piece with the connecting block is connected, the second bracing piece with the fixed block is connected, the oil pump is used for the drive pneumatic cylinder reciprocating motion.
Preferably, first connecting holes have all been seted up on the connecting block both ends, two the axis of first connecting hole is about the axis symmetry setting of guiding hole, be provided with the external screw thread on the first bracing piece, two first bracing piece passes respectively the connecting block both ends first connecting hole, the connecting block seted up the both sides of first connecting hole all are provided with second fixation nut, second fixation nut with the external screw thread of first bracing piece carries out threaded connection.
Preferably, the fixed block both ends all seted up with the second fixed orifices that the rope is parallel, two be provided with the external screw thread on the second bracing piece, two the second bracing piece passes respectively the fixed block both ends the second fixed orifices, the both sides of seting up the fixed orifices of fixed block all are provided with first fixation nut, first fixation nut with second bracing piece external screw thread carries out threaded connection.
Preferably, the fixing rod comprises two rod segments arranged in parallel at intervals, the fixing block is arranged perpendicular to the rod segments, two first fixing holes for the two rod segments to pass through are formed in the fixing block, and the power component and the force measuring component are both provided with two groups symmetrically arranged relative to the axis of the cable; the same ends of the two rod piece sections are respectively connected through a connecting section, and the other ends of the two rod piece sections are respectively connected with the two force measuring components in a one-to-one correspondence mode.
Preferably, the rod piece section is provided with an external thread, and two sides of the rod piece section, which penetrate through the first fixing hole, are respectively in threaded connection with the external thread of the rod piece section through a first fixing nut; and the part of the fixed block, which is positioned between the two rod piece segments, is used for connecting the parallel ropes of the rod piece segments.
Preferably, the force measuring component further comprises a display device for displaying the magnitude of the force borne by the sensor.
Preferably, the connecting block includes connecting bolt, first connecting plate and second connecting plate, first connecting plate with the mutual butt of second connecting plate, all seted up on first connecting plate with the second connecting plate with guiding hole vertically third connecting hole, just first connecting plate with the third connecting hole of seting up on the second connecting plate is coaxial, connecting bolt passes the third connecting hole, the side of first connecting plate with the mutual butt of second connecting plate all is provided with the half slot, works as first connecting plate with during the butt of second connecting plate, two the half slot is connected and is formed the guiding hole.
The technical scheme of the utility model, fixed block and dead lever sliding connection, the fixed block is connected through the power part, connecting block, dynamometry part and the dead lever that connect gradually, consequently, this attached tension measuring device can be under the condition of the direction of stress of not changing the rope, and the direct pulling force of the rope that receives the fixed block carries out the precision measurement, because do not change the direction of stress of rope, consequently, can obtain accurate measuring result.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the attached tension measuring device of the present invention.
Fig. 2 is the utility model relates to an attached tension measuring device's connecting block structure sketch map.
Fig. 3 is a schematic structural diagram of the attached tension measuring device of the present invention when measuring force.
Fig. 4 is a schematic structural view of a conventional rope fixing device.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an attached tension measuring device, which includes a cable fixing member, a connecting block 5, a power member 6 and a force measuring member 7; the inhaul cable fixing part comprises a fixing rod 1 and a fixing block 3 which are perpendicular to each other; the fixed block 3 is provided with a first fixed hole 4 for the fixed rod 1 to pass through; the connecting block 5 and the fixed block 3 are arranged in parallel at intervals, and a guide hole is vertically formed in the connecting block 5; the fixing block 3 is used for connecting the end of a rope 11, so that the rope 11 passes through the guide hole in a direction parallel to the fixing rod 1; one end of the force measuring component 7 is connected with the fixing rod 1, and the other end of the force measuring component is connected with the connecting block 5; one end of the power component 6 is connected with the fixed block 3, and the other end of the power component 6 is connected with the connecting block 5, so that the power component 6 drives the fixed block 3 to slide along the fixed rod 1.
The technical scheme of the utility model, fixed block 3 and 1 sliding connection of dead lever, fixed block 3 is connected through the power part 6 that connects gradually, connecting block 5, dynamometry part 7 and dead lever 1, consequently, this attached tension measuring device can directly carry out the accurate measurement to the pulling force of the rope 11 that fixed block 3 received under the condition of the atress direction of not changing rope 11, because do not change the atress direction of rope 11, consequently, can obtain accurate measuring result. Furthermore, this technical scheme can not cause the damage to rope 11, and power component 6 is controlled the distance between connecting block 5 and the fixed block 3, and is more convenient when test and installation.
Referring to fig. 1 and 2, in another embodiment of the present invention, the force measuring unit 7 includes a sensor 14 and a connecting rod 15, one end of the sensor 14 is connected to the fixing rod 1, and the other end of the sensor 14 is connected to the connecting block 5 through the connecting rod 15. All seted up second connecting hole 16 on connecting block 5 both ends, two the axis of second connecting hole 16 is about the axis symmetry of guiding hole sets up, be provided with the external screw thread on connecting rod 15, two connecting rod 15 passes respectively the connecting block 5 both ends second connecting hole 16, connecting block 5 has seted up the both sides of second connecting hole 16 all are provided with second fixation nut 13, second fixation nut 13 with the external screw thread of connecting rod 15 carries out threaded connection.
Specifically, the connecting rod 15 and the connecting block 5 are movably connected by the aid of second fixing nuts 13 arranged on two sides of the connecting rod 15 provided with threads and the second connecting hole 16, so that the distance between the connecting block 5 and the fixing block 3 is controlled. More specifically, the sensor 14 is a pressure sensor, and the sensor 14 is connected to the fixing rod through a connecting nut 20.
Referring to fig. 1 and 2, in another embodiment of the present invention, the power component 6 includes a first support rod 8, a second support rod 9, a hydraulic cylinder 10 and an oil pump, a fixed end of the hydraulic cylinder 10 is connected to the first support rod, a movable end of the hydraulic cylinder 10 is connected to the first support rod 8, the first support rod 8 is connected to the connection block 5, the second support rod 9 is connected to the fixed block 3, and the oil pump is used for driving the hydraulic cylinder 10 to reciprocate.
Specifically, the hydraulic pump is used for the drive pneumatic cylinder 10 reciprocating motion to control the distance between control connecting block 5 and the fixed block 3, more specifically, first bracing piece 8 with 3 swing joint of fixed block, second bracing piece 9 with 5 swing joint of connecting block to predict the distance between control connecting block 5 and the fixed block 3 earlier when the attached tension measuring device of equipment, lead to unable arrival appointed distance because of pneumatic cylinder 10's stroke distance reason.
Referring to fig. 1 and 2, in another embodiment of the present invention, first connection holes 12 are formed at both ends of the connection block 5, axes of the two first connection holes 12 are symmetrically arranged with respect to an axis of the guide hole, threads are formed on the first support rods 8, each of the first support rods 8 passes through the first connection hole 12 at one end of the connection block 5, second fixing nuts 13 are formed at both sides of the connection block 5 where the first connection hole 12 is formed, the second fixing nuts 13 are threadedly connected to the first support rods 8, first fixing holes 4 and second fixing holes 17 parallel to the rope 11 are formed at each end of the fixing block 3, threads are formed on the two second support rods 9, the two second support rods 9 pass through the second fixing holes 17 at both ends of the fixing block 3, the both sides of seting up the fixed orifices of fixed block 3 all are provided with first fixation nut 2, first fixation nut 2 with 9 threaded connection of second bracing piece.
Specifically, the first support rod 8 is movably connected with the connecting block 5 through a thread on the first support rod 8 and a second fixing nut 13. The second supporting rod 9 is movably connected with the fixed block 3 through the threads on the second supporting rod 9 and the first fixing nut 2, so that the distance between the connecting block 5 and the fixed block 3 is controlled.
Referring to fig. 1 and 2, in another embodiment of the present invention, the fixing rod 1 includes two rod segments arranged in parallel at an interval, the fixing block 3 is arranged perpendicular to the rod segments, two first fixing holes 4 for the two rod segments to pass through are formed on the fixing block 3, and the power component 6 and the force measuring component 7 are both provided with two sets symmetrically arranged with respect to the axis of the cable 11; the same ends of the two rod segments are respectively connected through a connecting segment, and the other ends of the two rod segments are respectively connected with the two force measuring components 7 in a one-to-one correspondence manner.
Specifically, the fixed block comprises two rod segments arranged in parallel at intervals, the power component 6 and the force measuring component 7 are both provided with two groups symmetrically arranged about the axis of the cable 11, the two groups are tested from the two sides of the cable, the power component applies pressure, and the stress is more balanced.
Referring to fig. 1 and 2, in another embodiment of the present invention, an external thread is disposed on the rod segment, and both sides of the rod segment, which penetrate through the first fixing hole 4, are respectively in threaded connection with the external thread of the rod segment through a first fixing nut 2; the part of the fixed block 3 between the two rod segments is used for connecting the parallel ropes 11 of the rod segments.
Specifically, the rod piece section is provided with an external thread, the external thread is connected with the first fixing nut 2 to adjust the relative position of the rod piece section and the fixing block 3, and the rod piece section and the fixing block 3 are fixed at ordinary times.
In another embodiment of the present invention, a protective shell is disposed outside the sensor 14, and a waterproof layer is disposed outside the protective shell. The waterproof layer is used for preventing the force measuring part 7 from being damaged to influence the measuring precision.
Referring to fig. 1 and 2, in another embodiment of the present invention, the force measuring unit 7 further includes a display device for displaying the magnitude of the force received by the sensor 14.
In particular, the display device is used to display in real time the force to which the sensor 14 is subjected, so that hydraulic adjustments can be assisted, while measurements can be made more quickly.
Referring to fig. 3, in another embodiment of the present invention, the connecting block 5 includes a connecting bolt, a first connecting plate 18 and a second connecting plate 19, the first connecting plate 18 and the second connecting plate 19 abut against each other, a third connecting hole perpendicular to the guiding hole is formed in each of the first connecting plate 18 and the second connecting plate 19, the third connecting holes formed in each of the first connecting plate 18 and the second connecting plate 19 are coaxial, the connecting bolt passes through the third connecting hole, a semicircular groove is formed in each of the mutually abutting sides of the first connecting plate 18 and the second connecting plate 19, and when the first connecting plate 18 and the second connecting plate 19 abut against each other, the two semicircular grooves connect to form the guiding hole.
Specifically, connecting block 5 is split type design, and is more convenient when assembling and demolising.
In one of the examples, the measurement was carried out on a steel cord with a design tension of 364.61kN at a measurement temperature of 30 ℃.
The test results were as follows:
and (4) conclusion: the actual tension of the steel cable does not reach the design tension, the tension of the steel cable needs to be increased to the design tension, the interval is increased to 26.6 kN-63 kN, and the qualified range is 346.4 kN-382.8 kN.
Wherein the first sensor is a sensor of one of the load cells and the second sensor is a sensor of the other of the load cells.
The above is only the preferred embodiment of the present invention, not limiting the scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. An attached tension measuring device is characterized by comprising a stay cable fixing part, a connecting block, a power part and a force measuring part; the inhaul cable fixing part comprises a fixing rod and a fixing block which are perpendicular to each other; the fixing block is provided with a first fixing hole for the fixing rod to pass through; the connecting block and the fixed block are arranged in parallel at intervals, and a guide hole is vertically formed in the connecting block; the fixing block is used for connecting the end part of a rope so that the rope passes through the guide hole along the direction parallel to the fixing rod; one end of the force measuring component is connected with the fixed rod, and the other end of the force measuring component is connected with the connecting block; one end of the power component is connected with the fixed block, and the other end of the power component is connected with the connecting block so as to drive the fixed block to slide along the fixed rod through the power component.
2. The adhesion type tension measuring device as claimed in claim 1, wherein the force measuring unit comprises a sensor and a connecting rod, one end of the sensor is connected to the fixing rod, and the other end of the sensor is connected to the connecting block through the connecting rod.
3. The attached tension measuring device according to claim 2, wherein the connecting block has second connecting holes at both ends thereof, the axes of the two second connecting holes are symmetrically arranged with respect to the axis of the guide hole, the connecting rod has external threads thereon, the two connecting rods respectively pass through the second connecting holes at both ends of the connecting block, and second fixing nuts are respectively arranged at both sides of the connecting block where the second connecting holes are formed, and the second fixing nuts are threadedly connected with the external threads of the connecting rod.
4. The adhesion type tension measuring device as claimed in claim 2, wherein the power unit comprises a first support rod, a second support rod, a hydraulic cylinder and an oil pump, a fixed end of the hydraulic cylinder is connected to the first support rod, a movable end of the hydraulic cylinder is connected to the second support rod, the first support rod is connected to the connecting block, the second support rod is connected to the fixed block, and the oil pump is used for driving the hydraulic cylinder to reciprocate.
5. The attached tension measuring device according to claim 4, wherein the connecting block has first connecting holes at both ends thereof, the axes of the two first connecting holes are symmetrically arranged with respect to the axis of the guiding hole, the first support rod has external threads thereon, the two first support rods pass through the first connecting holes at both ends of the connecting block, the connecting block has second fixing nuts at both sides thereof, and the second fixing nuts are threadedly connected to the external threads of the first support rod.
6. The attached tension measuring device according to claim 4, wherein a second fixing hole is formed at each end of the fixing block and parallel to the cable, an external thread is formed on each of the two second support rods, the two second support rods respectively pass through the second fixing holes at each end of the fixing block, a first fixing nut is arranged on each of the two sides of the fixing block, where the fixing hole is formed, and the first fixing nuts are in threaded connection with the external thread of the second support rods.
7. The attached tension measuring device according to claim 1, wherein the fixing rod comprises two rod segments arranged in parallel and spaced apart, the fixing block is arranged perpendicular to the rod segments, two first fixing holes for the two rod segments to pass through are formed in the fixing block, and the power member and the force measuring member are provided with two sets symmetrically arranged about the axis of the cable; the same ends of the two rod piece sections are respectively connected through a connecting section, and the other ends of the two rod piece sections are respectively connected with the two force measuring components in a one-to-one correspondence mode.
8. The attached tension measuring device according to claim 7, wherein the rod segment is provided with an external thread, and both sides of the rod segment, which penetrate through the first fixing hole, are respectively in threaded connection with the external thread of the rod segment through a first fixing nut; and the part of the fixed block, which is positioned between the two rod piece sections, is used for connecting the rope parallel to the rod piece sections.
9. An attachable tension measuring device as defined in claim 2, wherein said force measuring means further comprises a display device for displaying the magnitude of the force to which said sensor is subjected.
10. The attached tension measuring device according to any of claims 1 to 9, wherein the connecting block comprises a connecting bolt, a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate abut against each other, a third connecting hole perpendicular to the guide hole is formed in each of the first connecting plate and the second connecting plate, the third connecting holes formed in the first connecting plate and the second connecting plate are coaxial, the connecting bolt passes through the third connecting hole, the side surfaces of the first connecting plate and the second connecting plate abutting against each other are provided with semicircular grooves, and when the first connecting plate and the second connecting plate abut against each other, the two semicircular grooves are connected to form the guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021533038.2U CN212621226U (en) | 2020-07-29 | 2020-07-29 | Attached tension measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021533038.2U CN212621226U (en) | 2020-07-29 | 2020-07-29 | Attached tension measuring device |
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| CN212621226U true CN212621226U (en) | 2021-02-26 |
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| CN202021533038.2U Active CN212621226U (en) | 2020-07-29 | 2020-07-29 | Attached tension measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088277A (en) * | 2021-12-23 | 2022-02-25 | 国家能源集团谏壁发电厂 | Protective outer cover structure of rod member attached sensor |
| CN114088553A (en) * | 2021-11-02 | 2022-02-25 | 中铁大桥局集团有限公司 | Large-tonnage inhaul cable testing device |
-
2020
- 2020-07-29 CN CN202021533038.2U patent/CN212621226U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088553A (en) * | 2021-11-02 | 2022-02-25 | 中铁大桥局集团有限公司 | Large-tonnage inhaul cable testing device |
| CN114088277A (en) * | 2021-12-23 | 2022-02-25 | 国家能源集团谏壁发电厂 | Protective outer cover structure of rod member attached sensor |
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