Bolt torque detection device for railway

Abstract

The utility model discloses a bolt torque detection device for a railway, and belongs to the technical field of bolt torque detection. The four-bar linkage mechanism comprises a vehicle body, a four-bar linkage and a servo motor, a guide column is arranged at the tail of the vehicle body, the four-bar linkage comprises a shaft sleeve, a connecting seat and two long rods, a side plate is arranged on the outer surface of the shaft sleeve, a pneumatic telescopic rod is arranged between the side plate and one long rod, the shaft sleeve is in sliding fit with the guide column, and the two ends of the long rod are hinged to the side plate and the connecting seat respectively; the servo motor is installed on the motor base, the motor base is fixed to the connecting base, an output shaft of the servo motor is connected with the planetary reducer, the output end of the planetary reducer is connected with the sleeve, and the handle is installed on the connecting base. According to the utility model, the servo motor is used for measuring the torque of the bolt instead of the conventional manual torque measuring mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of bolt torque detection, in particular to a bolt torque detection device for railways. Background Art

[0002] At present, the method for testing the torque of fastener bolts on railways is mostly to use manual prefabricated torque wrenches for random testing. This operation method is extremely labor-intensive and has low operating efficiency. Utility Model Content

[0003] The utility model aims to provide a bolt torque detection device for railways, which uses a servo motor to replace the current manual torque measurement method for bolts.

[0004] The utility model is realized by the following technical solutions:

[0005] The utility model is a bolt torque detection device for railways, comprising a car body, a four-link rod and a servo motor. A guide column is arranged at the rear of the car body.

[0006] The four-link includes a shaft sleeve, a connecting seat and two long rods. The shaft sleeve is provided with a side plate on its outer surface. A gas telescopic rod is provided between the side plate and one of the long rods. The shaft sleeve is slidably fitted on the guide column. The two ends of the long rod are respectively hinged to the side plate and the connecting seat.

[0007] The servo motor is installed on the motor seat, the motor seat is fixed on the connecting seat, the output shaft of the servo motor is connected to the planetary reducer, and the output end of the planetary reducer is connected to the sleeve.

[0008] Furthermore, a handle is installed on the connecting seat.

[0009] Furthermore, a wheel set is installed at the bottom of the vehicle body.

[0010] Furthermore, the wheel set includes a running wheel, and one running wheel is installed at the front and rear of the bottom of the vehicle body.

[0011] Furthermore, the wheel set includes a guide wheel, which is provided at each of the four corners of the bottom of the vehicle body. The guide wheel has an axle barrel, a central axle is provided in the axle barrel, a roller is installed on the central axle, a notch is provided on the axle barrel, and the edge of the roller leaks out of the notch.

[0012] Furthermore, the end of the middle shaft is located inside the shaft barrel.

[0013] Furthermore, it also includes an "L"-shaped wheel seat, which has a short plate and a long plate. The long plate is installed on the bottom plate of the vehicle body through bolts. A threaded hole is opened on the short plate, and an adjusting bolt is matched in the threaded hole. The end of the adjusting bolt is connected to the axle barrel. A guide groove is provided on the long plate, and a protrusion matching the guide groove is provided on the top of the axle barrel.

[0014] The utility model has the following beneficial effects:

[0015] The utility model uses the characteristic of a servo motor that torque and voltage and current are in a linear relationship. The servo motor is used as a driving source for bolt torque detection. The trolley travels on a track. The detection part composed of a servo motor, a planetary reducer and a sleeve of the detection part can move around a guide column through a four-link and the four-link can move around a guide column, so as to facilitate the detection of bolts on the left and right sides of the track.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a structural schematic diagram of a torque detection device;

[0019] Figure 2 It is a schematic diagram of the bottom structure of the torque detection device;

[0020] Figure 3 is a front view of the torque detection device;

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Car body; 2. Wheel set; 3. Guide column; 4. Telescopic rod; 5. Handle; 6. Four-link; 7. Servo motor; 8. Planetary reducer; 9. Sleeve; 201. Travel wheel; 202. Guide wheel; 203. Notch; 204. Adjusting bolt; 205. Wheel seat; 206. Axle barrel; 601. Axle sleeve; 602. Connecting seat; 603. Long rod; 604. Side plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] See also Figure 1-3 As shown, the utility model is a bolt torque detection device for railways. The characteristic of the servo motor 7 is that the torque and voltage and current are linearly related. The torque of the bolt is detected by the servo motor 7 to complete the tightening detection of the railway bolt. Of course, the closed-loop control of the torque detection can be achieved by adding an external torque sensor to improve the measurement accuracy.

[0026] Specifically, a wheel set 2 is installed at the bottom of the vehicle body 1. The wheel set 2 is provided with two types, one is a running wheel 201 attached to the upper surface of the track, and the other is a guide wheel 202 attached to the two sides of the track. The guide wheel 202 clamps the vehicle body 1 to prevent it from tilting when walking on the guide rail.

[0027] A running wheel 201 is installed at the front and rear of the bottom of the vehicle body 1. The running wheel 201 is a conventional trolley wheel and will not be described in detail here.

[0028] A guide wheel 202 is provided at each of the four corners of the bottom of the vehicle body 1. The guide wheel 202 has an axle barrel 206. A central axis is provided in the axle barrel 206. A roller is installed on the central axis. A notch 203 is provided on the axle barrel 206. The edge of the roller protrudes from the notch 203. Specifically, the roller is installed horizontally. When the vehicle body 1 is placed on the guide rail, the roller contacts the side of the guide rail.

[0029] In addition, in order to facilitate the bolt torque detection device to be placed normally on the ground, the end of the middle axis is located inside the shaft barrel 206, that is, the length of the middle axis is shorter than the length of the shaft barrel 206, and the roller is located inside the shaft barrel 206. When the bolt torque detection device is placed on the ground, the end of the shaft barrel 206 touches the ground. Preferably, the port of the shaft barrel 206 is designed to be trumpet-shaped.

[0030] In order to cope with the situation that the track is wide at the top and narrow in the middle, the two guide wheels 202 located on the same side of the bottom of the vehicle body 1 are adjustable.

[0031] Specifically, an "L"-shaped wheel seat 205 is provided at the bottom of the vehicle body 1. The "L"-shaped wheel seat 205 has a short plate and a long plate. The long plate is installed on the bottom plate of the vehicle body 1 by bolts. A guide groove is provided on the long plate. The top of the axle barrel 206 has a protrusion matching the guide groove. A threaded hole is opened on the short plate, and an adjusting bolt 204 is matched in the threaded hole. The end of the adjusting bolt 204 is connected to the axle barrel 206. Preferably, a blind hole is opened on the axle barrel 206, and a small bearing is provided in the blind hole. The end of the adjusting bolt 204 is a smooth rod, which is matched in the inner ring of the small bearing. The spacing between the guide wheels 202 on both sides of the lower vehicle 1 is adjusted by screwing the adjusting bolt 204, so that the trolley can be conveniently mounted on the guide rail.

[0032] A guide column 3 is provided at the rear of the vehicle body 1. Preferably, the guide column 3 is a stepped column.

[0033] Among them, the servo motor 7 of the side power part for torqueing the railway bolt is mounted on the four-link 6, which is convenient for the servo motor 7 to move up and down, that is, the sleeve 9 at the lower end of the servo motor 7 moves up and down. Specifically, the four-link 6 includes a sleeve 601, a connecting seat 602 and two long rods 603. The outer surface of the sleeve 601 is provided with a side plate 604. The two ends of the long rod 603 are respectively hinged to the side plate 604 and the connecting seat 602. The connecting seat 602 is a "U" plate seat. Specifically, the side plate 604 and the "U" plate seat are provided with through holes. The long rods 603 are Corresponding through holes are opened at both ends of the rod 603. Both ends of the long rod 603 are installed on the side plate 604 and the "U" plate seat through pins. A pneumatic telescopic rod 4 is arranged between the side plate 604 and one of the long rods 603. The telescopic rod 4 is a pneumatic or electric telescopic rod, which provides power assistance for the movement of the servo motor 7. The shaft sleeve 601 is slidably fitted on the guide column 3, so that the four-link 6 can move around the guide column 3 to obtain circumferential freedom, that is, the servo motor 7 can be dislocated with the body part of the vehicle body 1 to facilitate the detection of the bolts on both sides of the vehicle track.

[0034] The servo motor 7 is installed on the motor seat, and the motor seat is fixed on the connecting seat 602. The output shaft of the servo motor 7 is connected to the planetary reducer 8. The output end of the planetary reducer 8 is connected to the sleeve 9. The sleeve 9 has a hole adapted to the bolt head.

[0035] Furthermore, a handle 5 is installed on the connecting seat 602 , and the handle 5 is “U”-shaped. The position movement of the servo motor 7 is controlled by the handle 5 .

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A railway bolt torque detection device, characterized in that: include: A vehicle body (1), wherein a guide column (3) is provided at the rear of the vehicle body (1). A four-linkage (6), the four-linkage (6) comprising a shaft sleeve (601), a connecting seat (602) and two long rods (603); the shaft sleeve (601) is provided with a side plate (604) on its outer surface; a gas telescopic rod (4) is provided between the side plate (604) and one of the long rods (603); the shaft sleeve (601) is slidably fitted on the guide column (3); and the two ends of the long rod (603) are respectively hinged to the side plate (604) and the connecting seat (602); A servo motor (7), wherein the servo motor (7) is mounted on a motor seat, wherein the motor seat is fixed on a connecting seat (602), wherein an output shaft of the servo motor (7) is connected to a planetary reducer (8), wherein an output end of the planetary reducer (8) is connected to a sleeve (9), and the sleeve (9) has a hole adapted to fit a bolt head.

2. A railway bolt torque detection device according to claim 1, characterized in that: A handle (5) is installed on the connecting seat (602).

3. A railway bolt torque detection device according to claim 1 or 2, characterized in that: A wheel set (2) is installed at the bottom of the vehicle body (1).

4. A railway bolt torque detection device according to claim 3, characterized in that: The wheel set (2) comprises a running wheel (201), and one running wheel (201) is installed at the front and rear of the bottom of the vehicle body (1).

5. A railway bolt torque detection device according to claim 4, characterized in that: The wheel set (2) comprises a guide wheel (202), each of which is provided at the four corners of the bottom of the vehicle body (1), the guide wheel (202) having an axle barrel (206), a central axis being provided in the axle barrel (206), a roller being mounted on the central axis, the axle barrel (206) having a notch (203), and the edge of the roller leaking out of the notch (203).

6. A railway bolt torque detection device according to claim 5, characterized in that: The end of the central shaft is located inside the shaft barrel (206).

7. A railway bolt torque detection device according to claim 5, characterized in that: It also includes an "L"-shaped wheel seat (205), the "L"-shaped wheel seat (205) having a short plate and a long plate, the long plate being mounted on the bottom plate of the vehicle body (1) by means of bolts, the short plate being provided with a threaded hole, the threaded hole being provided with an adjusting bolt (204), the end of the adjusting bolt (204) being connected to an axle barrel (206), the long plate being provided with a guide groove, the top of the axle barrel (206) being provided with a protrusion that matches the guide groove.

Images