Device for checking force of pressing clamp of fastening to rail

FIELD: railway transport; track machines.

SUBSTANCE: invention relates to manually operated devices for checking reliability of anchor fastenings of rail track. Proposed device includes lever with hook, support and force measuring unit and handle connected to end of lever. Said handle is made resilient, is provided with aperture and slot and is furnished with double-arm bar connected by middle part with handle under slot, and contact screw made for contact with first arm of double-arm bar and installed for shifting and fixing in cross bushing installed for turning and fixing in handle over slot. Force measuring unit is made in from of standard indicator whose housing is attached to handle in place of its connection with lever. Head is made for contact with second arm of double-arm bar. Hook is made in form of split hook turnable relative to end of lever and spring-loaded relative to lever to lever to catch crossmember of clamp. Support is made in from of stop turnable relative to lever for engagement with rolling surface and with side faces of rail head.

EFFECT: increased accuracy of measuring force of pressing clamp to rail, reduced fatigue of operator.

2 dwg

 

The invention relates to the travel arrangements and, in particular, for devices with manually operated to control the reliability of the connection anchor fastening railway (see supplementary materials). During the current contents of the track periodically check the contact force terminals fastening to the rail, to compare it with the desired value (about 7...7,8 kN) and draw conclusions about the need for repairs. Simple, comfortable and accurate measurement of power device for this purpose is not possible.

It is known [1] a device that can be used to verify the pressing force of the terminal fastening to the rail, including a load unit, performed as a dynamometer, with hook and handle. Hook performed with the opportunity to interact with the crossbar of the terminals. However, to control the contact force (7...7,8 kN) manually without the use of additional devices is extremely problematic.

It is also known [2] the device adopted for the prototype, which can be used to verify the pressing force of the terminal fastening to the rail comprising a lever with a support and a hook made as a lever of the second kind, with the load unit, made as a dynamometer connected with the console lever. Problems with the implementation of the required forces in this case are not in the situation. However, the accuracy of the recording power in this case will be low due to the large rates of divisions of existing scales dynamometers and fatigue of the operator whose hands directly perceive the work force, aimed uncomfortable down.

The aim of the invention is to improve the accuracy of measuring the pressing force of the terminals to rail and reduce fatigue of the operator.

This objective is achieved in that the device for checking the pressing force of the terminal fastening to the rail comprising a lever with a hook, a support and a load node, has an arm connected with the end of the lever is made of elastic with an aperture and a slot, and is fitted duplica Balochi fastened the middle part with the handle under the slot, and the contact screw is arranged to contact with the first shoulder duplica balocchi and installed with the possibility of displacement and bracing in the transverse sleeve mounted to rotate and lock in the handle above the slot, and load node is made in the standard form of the indicator, the body of which fastened with the handle in place, fastening it with the lever, and the tip is configured to contact with the second shoulder duplica balocchi, when this hook is executed in the form of a bifurcated swivel relative to the end of the lever and spring-loaded relative is him the hook with the ability to capture cross terminals, and support made in the form of rotatable relative to the arm rest with the opportunity to interact with the roll surface and side faces of the rail head.

The invention, according to the authors, is a new, unknown in the prior art, which is determined by new:

elements:

handle, enabling the use of load site, precisely the locking force of deformation, not force;

transverse sleeve, giving the opportunity to achieve the required accuracy of fixation force deformations;

duplica Balochi, shoulders which transmit the force of deformation of the movable element load node;

the contact screw, transmitting force to the deformable elements;

performing elements:

performing arm with elastic opening and a slot that gives you the opportunity to realize the transformation of forces in the deformation;

performing contact of the screw with the possibility of contact with the first shoulder duplica balocchi that implements the ability to convert forces in the deformation;

the execution load of the node, as a standard indicator, which increases the accuracy of measurement.

running tip of the indicator can be used to communicate with the second shoulder duplica balocchi, which enables the operation load of the node.

the implementation is receiving a hook in the form of a bifurcated swivel and spring hook with the ability to capture cross terminals, that reduces operator fatigue, providing ease and reliability of entrainment (large base) terminals;

implementation support in the form of a rotary stop with the opportunity to interact with the roll surface and side faces of the rail head, which ensures the stability of the system, implementing turning her support as a lever of the first kind;

connection elements:

the bond of the handle with the end of the lever that provides the best correlation of forces applied to the elements of the system, reducing operator fatigue;

installing the bushing in the handle can be rotated and fixation, which provides the ability to control the accuracy of the measurement of forces;

the bond of duplica balocchi middle part with the handle, allowing the transformation strain during their transfer to the load node;

setting the contact of the screw with the possibility of displacement and bracing in the transverse sleeve, which ensures the continuity of the measurement chain;

the bond of the body of the indicator handle that provides accurate functioning of the load node;

swivel hook its end to the end of the lever and springing about it, which improves the possibilities for manipulation of the device and reduces operator fatigue;

swivel lock with lever that is well coordinated functioning of the system as a lever of the first kind with reliable fixation of its support;

the relative location of elements:

the bond of the handle and the end of the lever, which increases its length and reduces operator fatigue;

installing the bushing in the arm above the slot in it that allows the system to operate the transformation of forces in the deformation;

placing duplica balocchi on the handle under the slot that also supports the conversion systems of forces in the deformation;

the mounting of the indicator on the handle in place, fastening it with a lever, which minimizes the elastic displacement hull.

The invention, according to the authors, involves an inventive step, for the specialist is not obvious from the prior art and cannot be created using well-known methods, procedures, methods and techniques of design and construction of machines, devices and mechanisms.

The present invention is industrially applicable and can be used in the road sector. The applicant has designed and executed a prototype device. It has a mass of no more than 8 kg, overall dimensions 1000×126×355 mm When testing the device proved its efficiency and implemented goal when the force on the handle no more than 400 N it was fixed (when the multiplier indicator 100 N/div.) the contact force of the terminals of the rail up to 8 kN with capacity up to 150 samples per hour. Currently, the design documentation of the device and prepared its serial production.

The proposed device is illustrated design concepts, in which figure 1 shows the device in side view, and figure 2 - front view.

As suggested by figures 1 and 2, the device for checking the pressing force of the terminal fastening to the rail includes a handle 1 with a hook 2, a support and a load node. It is provided with a handle 3 connected with the end of the lever 1. The arm 3 is made of elastic with opening 4 and slot 5. It also has duplica Balochi 6, fastened its middle part with the arm 3 above the slot 5. The arm 3 has a contact screw 7, is arranged to contact with the first (figure 1 - right) shoulder of duplica balocchi 6 and installed with the possibility of displacement and fixation, for example, by the screw 8 in the transverse sleeve 9. The last set can be rotated and fixed, such as by the screw 10, the arm 3 above the slot 5. Load node is made in the standard form of the indicator 11 to measure displacement. Its body 12 is bonded to the handle 3 in place, fastening it with the lever 1. The tip 13 of the indicator is configured to contact with the second shoulder (figure 1 - left) duplica balocchi 6. Hook 2 devices made in the form of rotary (fixed Prov. 14) relative to the end (figure 1 - left) arm 1 and a spring-loaded (spring tension 15) with respect to it of the hook 16 with the ability to capture cross-beams of the terminals 17. Bearing device made in the form of swivel (hinge 18 on some designed by the well-known dependency distance from the hinge 14) relative to the lever 1 stop 19, made interoperable with the roll surface and side faces of the rail head 20.

The proposed device operates as follows. First (1, 2) the crossmember terminals 17 of the fastening capture bifurcated spring-loaded hook 16, if necessary, by turning it relative to the hinge 14 at the end of the handle 1. Then turning stop 19 carefully rest the device on the rolling surface of the rail head 20. Then combine the zero stroke of the primary scale indicator 11 arrow, rotating bezel, casing 12. Then check the consistency of the indicator 11, which 2...3 times click on its measuring tip 13 through duplacey balochku 6 and let her go. Then if the meter needle 11 will take zero position, then again combined with her zero stroke of the primary scale of the indicator 11. Next, smoothly, without jerks right hand, helping, optionally, the left hand, push down on the handle 3. When this contact screw 7 affect duplacey balochku 6, realize the interaction of the latter with the tip 13 of the indicator 11. Tip 13, shifting relative to the starting position, causes the displacement of the indicator needle 11, the proportional strength of the hook 16 to terminal 17. The magnitude of this force is determined by protonirovannoi scale indicator 11. Fixing the number of scale divisions corresponding to the beginning of a sharp deceleration of rotation of the indicator 11 in the moment of separation of the terminals from 17 elements (isolation area) fasteners, determine the contact force of the terminals 17 to the rail (on the scale of the indicator 11 may be noted in advance division, corresponding to the normalized power). Then gently, without shocks and tremors free check terminal 17 of the hook 16, and keeping a precaution, gently move the device to the next check terminal 17.

Periodically perform calibration of the load node. To do this, load the arm 3 calibrated force rosticceria sleeve 9 relative to the arm 3 (for example, loosening the screw 10), turn the sleeve 9 relative to the arm 3 in the desired direction (clockwise or counterclockwise)by setting the value of the indicator (e.g., 100 N/div.). Further, if necessary, establish the tightness of the measuring rod of the indicator (on the order of 1...2 mm).

For this rosticceria contact screw 7 relative to the sleeve 9 (for example, loosening the screw 8), shifting the contact screw 7 considers the flax bushes 9 (respectively down or up) and rest it in the appropriate (1 - left) shoulder duplica balocchi 6.

Sources of information

1. Polytechnical dictionary. Ed. II Artobolevsky. - M.: Soviet encyclopedia, 1976. - P.143.

2. Krainev A.F. Mechanisms of machinery: Basic dictionary. - M.: Mashinostroenie, 2000. - S, Rob.

Device for checking the pressing force of the terminal fastening to the rail comprising a lever with a hook, a support and a load node, characterized in that it has an arm connected with the end of the lever is made of elastic with an aperture and a slot, and is fitted duplica Balochi fastened the middle part with the handle under the slot, and the contact screw is arranged to contact with the first shoulder duplica balocchi and installed with the possibility of displacement and bracing in the transverse sleeve mounted to rotate and lock in the handle above the slot, and load node is made in the standard form of the indicator, the body of which is bonded with arm in place, fastening it with the lever, and the tip is configured to contact with the second shoulder duplica balocchi, when this hook is executed in the form of a bifurcated swivel relative to the end of the lever and spring-loaded with respect to his hook with the ability to capture cross terminals, and support made in the form of rotatable relative to the lever against the possibility of the awn interaction with the roll surface and side faces of the rail head.



 

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3 cl, 3 dwg

FIELD: railway transport.

SUBSTANCE: invention can be used for diagnosing condition of rails using combined ultrasonic and magnetic nondestructive testing devices of higher resolving power. Proposed rail track mobile testing device includes vehicle on frame of which flaw detector bogie is mounted with system for pneumatic and manual lifting of bogie I to traveling position. Tracking ski secured on frame of flaw detector bogie is provided with ultrasonic testing converters unit. Mobile device is provides also with pneumatic system for forced pressing of flaw detector bogie to rails made for adjusting force of pressing in vertical axis and with lateral stabilizing device consisting of roller carriage with flexible damping support. Series magnetizing coils of magnetic control device whose inductive sensor is installed after converters unit in rear part of tracing ski in direction of movement of flaw detector bogie, said coils being fitted on axles of wheel-steps of flaw detector bogie and connected to each other. Said magnetizing coils are installed on bearings and are arranged I protective hood secured on frame of flat detector bogie. Housing of converters unit, protective hood and frame of flaw detector bogie are made on nonmagnetic material. Wheels of flaw detector bogie are installed for independent rotation.

EFFECT: increased resolving power at diagnosing condition of rails, increased dynamic stability of device in movement along rails, reduced mass and dimensional characteristics.

2 cl, 1 dwg

FIELD: applications of measuring apparatus or devices for track-building purposes.

SUBSTANCE: control method involves setting survey points and determining coordinates of above points in X, Y, Z coordinate system; placing measuring station near structure and determining measuring station position in X, Y, Z coordinate system relative at least one survey point; determining distance and angle between above insertion device and measuring station with the use of above measuring station; calculating insertion device position on the base of above distance and measuring station position; moving insertion device to provide coincidence of above members with predetermined member insertion points along insertion axis. Insertion device comprises lever, which may perform longitudinal and rotational movement in three mutually perpendicular directions. The lever holds members to be inserted in the base and comprises mirrors to determine positions of the lever and the members in three dimensions with the use of measuring station.

EFFECT: increased accuracy and speed of insertion device arrangement on the base, simplified usage and reduced cost.

11 cl, 5 dwg

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