CN214150213U

CN214150213U - Steel wire rope tension machine

Info

Publication number: CN214150213U
Application number: CN202022845103.1U
Authority: CN
Inventors: 沈清; 王晓波
Original assignee: Tianjin Shengxintai Steel Rope Rigging Co ltd
Current assignee: Tianjin Shengxintai Steel Rope Rigging Co ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-09-07
Anticipated expiration: 2030-12-01

Abstract

The utility model provides a steel wire rope tensile machine, which is characterized by comprising a base, a tensile machine frame, a lower clamp, an upper clamp, a cover, a circuit switch, a lead screw, an ascending cross bar, a sensor, a balance counter-force mechanism and a limiting mechanism, wherein the tensile machine frame is arranged on the upper end surface of the base, the circuit switch is arranged on the right side in front of the tensile machine frame, the lower clamp is arranged on the base, the lead screw is arranged in the tensile machine frame, the ascending cross bar is arranged between the lead screws, the sensor is arranged below the ascending cross bar, the balance counter-force mechanism is arranged below the sensor, the upper clamp is arranged below the balance counter-force mechanism, the limiting mechanism is arranged on the ascending cross bar, the cover is arranged at the top end of the tensile machine frame, the pulling force is buffered by designing the counter-force mechanism, the tensile force is vertically upward during the experiment, and the sensor is protected by designing the limiting mechanism.

Description

Steel wire rope tension machine

Technical Field

The utility model relates to a field especially relates to a wire rope pulling force machine.

Background

The tension machine is mainly suitable for testing various physical and mechanical properties of plastic plates, pipes, profiles, plastic films, rubber, electric wires and cables, waterproof coiled materials, metal wires, steel materials and other materials, wherein the steel wire tension machine is mainly used for testing the endurance of steel wires and in a breaking experiment of the steel wires, the conventional steel wire tension machine is structurally characterized in that a lower clamp is arranged on a base, tension machine frames are arranged on the left side and the right side of the upper end surface of the base, a machine cover is arranged above the tension machine frames, a hydraulic pump is arranged in the tension machine frames, a lifting cross bar is transversely arranged between the tension machine frames on two sides, a sensor is arranged below a lifting cross beam, an upper clamp is arranged below the sensor, when the steel wire tension machine works, external equipment receives signals transmitted by the sensor to obtain a measured value, and although the endurance test of the steel wires can be effectively completed, and breaking experiments of steel wire ropes, but still have the following defects:

1. by adopting the steel wire rope tensile machine in the prior art, because no counter-force mechanism is arranged, the force acting on the sensor is hard tensile force, when the tensile force is overlarge, because no counter-force mechanism is arranged, the force applied to the sensor can not be buffered, the force applied to the sensor in the moment is overlarge, and the sensor is easy to damage;

2. adopt prior art's wire rope pulling force machine, its original state is on same vertical line for last anchor clamps and lower anchor clamps, the pulling force to wire rope this moment is the vertical direction, because the vertical installation of sensor, so the numerical value that records this moment is the most accurate, when pulling force machine life reachs certain degree, because long-time carry out the tensile test, anchor clamps can't resume original state under free state on it, anchor clamps can incline over the time, the pulling force point is not on the vertical line, take place the condition of pulling force and out of plumb, cause the dispersion of power, the numerical value that leads to measuring is inaccurate.

Disclosure of Invention

According to the above technical problem, the utility model provides a wire rope pulling machine, which is characterized in that the wire rope pulling machine comprises a base, a pulling machine frame, a lower clamp, an upper clamp, a machine cover, a circuit switch, a lead screw, a lifting cross bar, a sensor, a balance counter-force mechanism and a limiting mechanism, wherein the pulling machine frame is respectively arranged at the left side and the right side of the upper end surface of the base, the circuit switch is arranged at the front side of the pulling machine frame at the right side, the lower clamp is arranged at the center of the upper end surface of the base, the lead screws are respectively and longitudinally arranged in the pulling machine frame at the left end and the right end, the lifting cross bar is arranged between the lead screws, threaded holes are respectively arranged at the left end and the right end of the lifting cross bar, the lifting cross bar is sleeved on the lead screw through the threaded holes at the two ends, the counter-force sensor is arranged below the lifting cross bar, the balance counter-force mechanism is arranged below the sensor, the upper clamp is arranged below the balance mechanism, a limiting mechanism is arranged on the left side of the upper end face of the ascending cross bar, and a cover is arranged at the top end of the tensile machine rack;

the balance counter-force mechanism comprises a rotating shaft fixing block, a rotating shaft supporting frame, a counter-force device box body, a balancing weight, a gear, a level, a sliding block, a sliding groove, a knob, a pressing plate, a rubber piston, a one-way air valve, a rubber plug and a connecting rod, wherein the rotating shaft fixing block is installed below the sensor, the rotating shaft fixing block is connected with the sensor through a bolt, the rotating shaft supporting frame is installed below the rotating shaft fixing block, the rotating shaft supporting frame is connected with the rotating shaft fixing block through a rotating shaft, through holes are formed in the left side and the right side of the rotating shaft supporting frame, the counter-force device box body is installed at the lower end of the rotating shaft supporting frame, the upper end of the counter-force device box body is connected with the rotating shaft supporting frame through welding, the sliding groove is formed in the upper end face of the counter-force device box body, the balancing weight is arranged above the counter-force device box body, the balancing weight is arranged inside the rotating shaft supporting frame, the sliding block is arranged on the lower end face of the balancing weight, the sliding block and the balancing weight are of an integral structure, the balancing weight is in sliding connection with the counter-force device box body through a sliding block sliding groove, a rack is arranged above the balancing weight, a gear is arranged above the rack, the gear and the rack are meshed and connected, a gear shaft is arranged on the gear, one end of the gear shaft is connected with the gear through a key, the other end of the gear shaft is provided with a knob, a through hole is formed in the right side of the counter-force device box body, an one-way air valve is arranged at the through hole, a rubber plug is arranged on the right side of the one-way air valve, a pressing plate is arranged at the upper end inside the counter-force device box body, a connecting rod is arranged on the lower end face of the pressing plate, the upper end of the connecting rod is connected with the pressing plate through a bolt, the lower end of the connecting rod extends out of the counter-force device box body, the lower end of the connecting rod is connected with an upper clamp, and the upper clamp is connected with the connecting rod through a bolt, and a rubber piston a is arranged below the pressure plate, and a rubber piston b is arranged at the bottom end of the box body of the counterforce device.

Stop gear includes plectrum, copper sheet, the plectrum is located the left end that rises the horizontal pole, the plectrum passes through bolted connection with the horizontal bar that rises, the copper sheet sets up inside the cover, the copper sheet is located the left and right sides directly over the plectrum perpendicular line, the left side the copper sheet is connected with external power source, the right side the copper sheet is connected with internal circuit, two the copper sheet is contact with each other.

The utility model has the advantages that:

the utility model discloses a design a counter-force mechanism, make the upper end of going up anchor clamps be connected with the one end of connecting rod, the other end of connecting rod passes the bottom and the clamp plate of counterforce box body and is connected, install rubber piston a below the clamp plate, and the lower terminal surface of the inside of counterforce box body installs rubber piston b, the hole of aerifing has been seted up on the right-hand member face of counterforce box body, the one-way pneumatic valve is installed to the hole of aerifing, when the operation of wire rope pulling force machine, the clamp plate pushes down, rubber piston a below the oppression clamp plate is close to the rubber piston b of the lower terminal surface of the inside of counterforce box body, utilize the piston principle to produce the counterforce equal with the pulling force, two forces are balanced each other, utilize the counterforce, the pulling force makes the clamp plate move downwards at first, make the force balanced through atmospheric pressure, then act on the sensor, hard pulling force that will directly act on the sensor changes into soft pressure, make the pulling force obtain the stage of buffering, force which acts on the sensor instantly cannot be overlarge, so that the sensor is protected, and the condition that the sensor is damaged is avoided;

the utility model discloses a design balancing mechanism sets up the rack structure on the burden piece, rack and gear engagement, the gear is installed with one end of gear shaft, the other end of gear shaft is installed the knob, through rotating the knob, make the burden piece move about, observe the spirit level that the top set up simultaneously, adjust the pulling force line of equipment to vertical state, make the pulling force vertical upwards during the experiment, the numerical value that measures is more accurate;

the utility model discloses a design stop gear, the copper sheet sets up inside the cover, and the copper sheet is located the left and right sides directly over the plectrum perpendicular line, and the left side copper sheet is connected with external power supply, and right side copper sheet and internal circuit are connected, and two copper sheet intercommunications, when because staff's misoperation, the cover will be hit to the cross bar that rises, and the plectrum of installation on the cross bar that rises inserts earlier in two copper sheets makes disconnection between the copper sheet, because the left side the copper sheet is connected with external power supply, the right side the copper sheet is connected with internal circuit, and circuit disconnection when copper sheet disconnection consequently, the pulling force machine stops the function, has avoided the cross bar that rises because staff's misoperation in the process that rises, the condition that the cross bar hit the cover takes place to play the guard action to the sensor.

Drawings

Fig. 1 is an overall front view of the present invention;

fig. 2 is an enlarged view of a portion a of fig. 1 according to the present invention;

fig. 3 is an enlarged view of a portion B of fig. 1 according to the present invention;

fig. 4 is an enlarged view of the portion C in fig. 2 according to the present invention;

FIG. 5 is a side cross-sectional view of the top of the balanced counter-force mechanism of the present invention;

fig. 6 is a display diagram of the joint of the counterweight block and the counterforce box body of the utility model.

As shown in the figure: the device comprises a base 1, a tensile machine frame 2, a lower clamp 3, an upper clamp 4, a cover 5, a circuit switch 6, a lead screw 7, a lifting cross bar 8, a rotating shaft fixing block 9, a rotating shaft supporting frame 10, a counterforce device box 11, a counterweight 12, a gear 13, a level meter 14, a slider 15, a sliding chute 16, a knob 17, a pressing plate 18, a rubber piston a19, a one-way air valve 20, a rubber plug 21, a shifting sheet 22, a copper sheet 23, a rubber piston b24, a rack 25, a gear shaft 26, a sensor 27 and a connecting rod 28.

Detailed Description

Example 1

The utility model provides a steel wire rope tensile machine, which is characterized by comprising a base 1, a tensile machine frame 2, a lower clamp 3, an upper clamp 4, a machine cover 5, a circuit switch 6, a lead screw 7, a rising cross bar 8, a sensor 27, a balance counter-force mechanism and a limiting mechanism, wherein the tensile machine frame 2 is respectively arranged at the left side and the right side of the upper end surface of the base 1, the circuit switch 6 is arranged at the front part of the right side tensile machine frame 2, the lower clamp 3 is arranged at the center of the upper end surface of the base 1, the lead screws 7 are respectively and longitudinally arranged in the tensile machine frames 2 at the left end and the right end, the rising cross bar 8 is arranged between the lead screws 7, the left end and the right end of the rising cross bar 8 are respectively provided with a threaded hole, the rising cross bar 8 is sleeved on the lead screws 7 through the threaded holes at the two ends, the sensor 27 is arranged below the rising cross bar 8, the balance mechanism is arranged below the sensor 27, the upper clamp 4 is arranged below the balance counter-force mechanism, a limiting mechanism is arranged on the left side of the upper end surface of the ascending cross bar, and a cover 5 is arranged at the top end of the tensile machine frame;

the balance counter-force mechanism comprises a rotating shaft fixing block 9, a rotating shaft supporting frame 10, a counter-force device box body 11, a balancing weight 12, a gear 13, a level meter 14, a sliding block 15, a sliding groove 16, a knob 17, a pressing plate 18, a rubber piston 19, a one-way air valve 20, a rubber plug 21 and a connecting rod 28, wherein the rotating shaft fixing block 9 is arranged below a sensor 27, the rotating shaft fixing block 9 is connected with the sensor 27 through a bolt, the rotating shaft supporting frame 10 is arranged below the rotating shaft fixing block 9, the rotating shaft supporting frame 10 is connected with the rotating shaft fixing block 9 through a rotating shaft, through holes are formed in the left side and the right side of the rotating shaft supporting frame 10, the counter-force device box body 11 is arranged at the lower end of the rotating shaft supporting frame 10, the upper end of the counter-force device box body 11 is connected with the rotating shaft supporting frame 10 through welding, the sliding groove 16 is formed in the upper end face of the counter-force device box body 11, the balancing weight 12 is arranged above the counter-force device box body 11, the lower end face of a balancing weight 12 is provided with a sliding block 15, the sliding block 15 and the balancing weight 12 are of an integral structure, the balancing weight 12 and a counterforce box body 11 are connected in a sliding mode through a sliding groove 16 of the sliding block 15, a rack 25 is arranged above the balancing weight 12, a gear 13 is arranged above the rack 25, the gear 13 is meshed with the rack 25, a gear shaft 26 is arranged on the gear 13, one end of the gear shaft 26 is connected with the gear 13 through a key, the other end of the gear shaft 26 is provided with a knob 17, the right side of the counterforce box body is provided with a through hole, a one-way air valve 20 is arranged at the through hole, the right side of the one-way air valve 20 is provided with a rubber plug 21, the upper end inside the counterforce box body 11 is provided with a pressing plate 18, the lower end face of the pressing plate 18 is provided with a connecting rod 28, the upper end of the connecting rod 28 is connected with the pressing plate 18 through a bolt, the lower end of the connecting rod 28 extends out of the counterforce box body 11, and the lower end of the connecting rod 28 is connected with an upper clamp 4, the upper jig 4 is connected to the connecting rod 28 by bolts, a rubber piston a19 is provided below the pressure plate 18, and a rubber piston b24 is provided at the bottom end of the reaction device case 11.

Stop gear includes plectrum 22, copper sheet 23, and plectrum 22 is located the left end that rises horizontal pole 8, and plectrum 22 passes through bolted connection with rising horizontal bar 8, and copper sheet 23 sets up inside cover 5, and copper sheet 23 is located the left and right sides directly over plectrum 22 perpendicular line, and left side copper sheet 23 is connected with external power source, and right side copper sheet 23 is connected with internal circuit, two copper sheets contact each other.

Example 2

When a breaking experiment is carried out, a worker fixes two ends of a steel wire rope on a lower clamp 3 and an upper clamp 4 respectively, opens a rubber plug 21, fills gas into a counterforce box body 11 by using an external pneumatic press, inserts the rubber plug 21 into a through hole, opens a circuit switch 6, switches on a circuit, operates an external motor, drives a left screw 7 and a right screw 7 to synchronously rotate, then a lifting cross rod 8 rises, a sensor 27 rises along with the rising of a rotating shaft fixing block 9 below the sensor 27, so that a rotating shaft supporting box 10 rises, the counterforce box body 11 is driven to rise, a pressure plate 18 rises, a connecting rod 28 rises, and the upper clamp 4 is driven to rise, therefore, the lower steel wire rope generates a downward pulling force on the upper clamp 4, the pressure plate 18 is driven to move downwards, the pressure plate 18 presses a rubber piston 19 to move downwards, and the gas in the counterforce box body 11 is compressed because the rubber piston b24 cannot move downwards, gas compression produces a power opposite with pulling force direction, be called the counterforce, the pulling force can not direct action on sensor 27 this moment, when the pulling force that the clamp plate received is balanced with the counterforce, utilize atmospheric pressure to produce a counterforce that is the same with the pulling force, the counterforce prevents clamp plate 18 from pushing down, this process makes the pulling force obtain the buffering, the pulling force begins to act on sensor 27, counterforce ware box 11 receives the pulling force, the pivot support frame receives decurrent pulling force, pivot fixed block 9 receives decurrent pulling force simultaneously, because pivot fixed block 9 is connected with sensor 27's lower extreme, so sensor 27's lower extreme receives decurrent pulling force, because sensor 27's upper end is connected with ascending whippletree 8, thereby measure tensile numerical value. When the steel wire rope is broken, the circuit switch 6 is closed, and the external equipment receives signals of the sensor 27 to obtain data;

when the ascending cross bar 8 is about to collide with the cover 5 due to improper operation of workers, the shifting sheet 22 arranged on the ascending cross bar is inserted into the two copper sheets 23 to disconnect the copper sheets 23, and the left copper sheet 23 is connected with an external power supply and the right copper sheet 23 is connected with an internal circuit, so that the circuit is disconnected when the copper sheets 23 are disconnected, and the tensile machine stops operating;

when the pulling force is not on the vertical line, the knob 17 is rotated by the staff, the gear shaft 26 is driven to rotate, the gear shaft 26 drives the gear 13 to rotate, the gear 13 drives the rack 25 to move left and right, the rack 25 drives the balancing weight 12 to slide left and right in the sliding groove 16 by utilizing the sliding block 15, the level gauge 14 arranged above the balancing weight is observed, and when the level gauge reaches the level, the adjustment is stopped.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. The utility model discloses each part that mentions is the common technique in prior art, and the technical personnel of this trade should understand, the utility model discloses do not receive the restriction of above-mentioned embodiment, the description only is the explanation in above-mentioned embodiment and the description the principle of the utility model, under the prerequisite that does not deviate from the spirit and the scope of the utility model, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the protection of claim the utility model is within the scope. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A steel wire rope tensile machine is characterized by comprising a base, a tensile machine frame, a lower clamp, an upper clamp, a machine cover, a circuit switch, a lead screw, a lifting cross bar, a sensor, a balance counter-force mechanism and a limiting mechanism, wherein the tensile machine frame is respectively installed on the left side and the right side of the upper end face of the base, the circuit switch is installed in front of the tensile machine frame on the right side, the lower clamp is installed in the center of the upper end face of the base, the lead screws are respectively and longitudinally installed in the tensile machine frame on the left end and the right end, the lifting cross bar is installed between the lead screws, threaded holes are respectively formed in the left end and the right end of the lifting cross bar, the lifting cross bar is sleeved on the lead screw through the threaded holes at the two ends, the sensor is installed below the lifting cross bar, the balance counter-force mechanism is installed below the sensor, the upper clamp is installed below the balance counter-force mechanism, the limiting mechanism is installed on the left side of the upper end face of the lifting cross bar, a cover is arranged at the top end of the tensile machine frame;

the balance counter-force mechanism comprises a rotating shaft fixing block, a rotating shaft supporting frame, a counter-force device box body, a balancing weight, a gear, a level, a sliding block, a sliding groove, a knob, a pressing plate, a rubber piston, a one-way air valve, a rubber plug and a connecting rod, wherein the rotating shaft fixing block is arranged below the sensor, the rotating shaft fixing block is connected with the sensor through a bolt, the rotating shaft supporting frame is arranged below the rotating shaft fixing block, the rotating shaft supporting frame is connected with the rotating shaft fixing block through a rotating shaft, through holes are formed in the left side and the right side of the rotating shaft supporting frame, the counter-force device box body is arranged at the lower end of the rotating shaft supporting frame, the sliding groove is formed in the upper end face of the counter-force device box body, the balancing weight is arranged inside the rotating shaft supporting frame, the sliding block is arranged on the lower end face of the balancing weight, the sliding block and the balancing weight are integrated, the balancing weight and the counter-force device box body are connected through sliding grooves of the sliding block, a rack is arranged above the balancing weight, a gear is arranged above the rack, the gear is meshed with the rack and connected with the rack, a gear shaft is mounted on the gear, one end of the gear shaft is connected with the gear through a key, a knob is mounted at the other end of the gear shaft, a through hole is formed in the right side of the reaction device box body, an one-way air valve is mounted at the through hole, a rubber plug is arranged on the right side of the one-way air valve, a pressing plate is arranged at the upper end inside the reaction device box body, a connecting rod is mounted on the lower end face of the pressing plate, the lower end of the connecting rod extends out of the reaction device box body, the lower end of the connecting rod is connected with an upper clamp, the upper clamp is connected with the connecting rod through a bolt, a rubber piston a is arranged below the pressing plate, and a rubber piston b is arranged at the bottom end of the reaction device box body;

2. The steel wire rope tensile machine according to claim 1, wherein the upper end of the counterforce box body is connected with the rotating shaft support frame through welding.

3. A steel rope pulling machine according to claim 1, wherein the upper end of the connecting rod is connected to the pressure plate by a bolt.