Torque measuring device for track bolts

Abstract

The present invention provides a torque measuring device for track bolts, comprising: a bracket, on which an abutment structure is provided, the abutment structure is used to abut against a rib on the surface of the track; a torque measuring assembly, fixedly arranged on the bracket, the torque measuring assembly comprising: a driving mechanism, used to provide torque; a torque transmission mechanism, used to cooperate with the bolt to be measured and transmit the torque provided by the driving mechanism to the bolt to be measured; a torque sensor, connected between the driving mechanism and the torque transmission mechanism. The technical solution of the present invention solves the defects of the static torque test of track bolts in the prior art that the labor intensity is high and the data is easily affected by human factors.

Description

Technical Field

[0001] The invention relates to the technical field of track testing equipment, and in particular to a torque measuring device for a track bolt. Background Art

[0002] In order to ensure that the working parameters of the crawler meet the requirements, it is necessary to perform a static torque test on the bolts of the crawler. In the prior art, when performing static torque testing on the track bolts, it is necessary to manually use a torque wrench to tighten the bolts one by one and record the data. The above test method is time-consuming and labor-intensive, and the human factor has a great influence, and the data consistency is poor. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the static torque test of track bolts in the prior art that the labor intensity is high and the data is easily affected by human factors, thereby providing a torque measuring device for track bolts.

[0004] In order to solve the above technical problems, the present invention provides a torque measuring device for a track bolt, comprising: a bracket, on which is provided an abutment structure, the abutment structure being used to abut against a rib on a track surface; a torque measuring assembly, fixedly arranged on the bracket, the torque measuring assembly comprising: a driving mechanism for providing torque; a torque transmission mechanism for cooperating with a bolt to be measured and transmitting the torque provided by the driving mechanism to the bolt to be measured; and a torque sensor connected between the driving mechanism and the torque transmission mechanism.

[0005] Optionally, there are two abutment structures, and the two abutment structures are in abutment contact with adjacent ribs respectively.

[0006] Optionally, the bracket includes: a fixing frame for cooperating with the torque measuring assembly; a connecting rod, a first end of the connecting rod is connected to the fixing frame, a second end of the connecting rod extends downward, and an abutment structure is arranged on the second end of the connecting rod.

[0007] Optionally, there are two connecting rods, and the first ends of the two connecting rods are respectively connected to two opposite sides of the fixing frame.

[0008] Optionally, the second end of the connecting rod is bent outward to form an abutment structure.

[0009] Optionally, the torque measurement assembly further includes a reduction mechanism, the output shaft of the driving mechanism is connected to the input end of the reduction mechanism, and the output end of the reduction mechanism is connected to the torque sensor.

[0010] Optionally, there are two fixing frames, one of which cooperates with the driving mechanism, and the other of which cooperates with the speed reduction mechanism, wherein the connecting rod is connected to both fixing frames.

[0011] Optionally, the fixing frame is an annular structure, and the fixing frame is sleeved outside the driving mechanism and / or the speed reduction mechanism.

[0012] Optionally, the torque measurement assembly further includes a connecting member arranged between the torque sensor and the torque transmission mechanism.

[0013] Optionally, the lower end of the torque transmission mechanism is provided with a recess matched with the shape of the bolt to be measured, and the upper end of the torque transmission mechanism is detachably connected to the connecting piece by plugging.

[0014] The technical solution of the present invention has the following advantages:

[0015] By adopting the technical solution of the present invention, when conducting a static torque test on track bolts, the torque measuring device is placed between the convex ribs of the track, and the abutment structure is abutted against the convex ribs of the track. At this time, the driving mechanism is started, so that the torque transmission mechanism cooperates with the bolt to be measured, and the torque of the driving mechanism is transmitted to the bolt to be measured through the torque transmission mechanism. Since the abutment structure is stuck on the convex rib of the track, it is ensured that the bracket and the torque measurement assembly as a whole will not rotate, so that the torque applied by the driving mechanism can be transmitted to the bolt, and the value is recorded by the torque sensor. In the above structure, it is no longer necessary for the operator to rotate the torque wrench to realize the recording of the bolt torque data, which reduces the labor intensity during the test on the one hand, and reduces the influence of human operation on the data results on the other hand. Therefore, the technical solution of the present invention solves the defects of the static torque test of track bolts in the prior art that the labor intensity is high and the data is easily affected by human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic structural diagram of an embodiment of a torque measuring device for a track bolt of the present invention is shown;

[0018] Figure 2 Shows Figure 1 Schematic diagram of the structure of the torque measuring device and the crawler track;

[0019] Figure 3 Shows Figure 1 A front view of the connection member of the torque measuring device; and

[0020] Figure 4 Shows Figure 3Side view of the connecting piece.

[0021] Description of reference numerals:

[0022] 10. Bracket; 11. Fixing frame; 12. Connecting rod; 20. Abutting structure; 30. Raised rib; 40. Torque measuring assembly; 41. Driving mechanism; 42. Torque transmission mechanism; 43. Torque sensor; 44. Speed ​​reduction mechanism; 45. Connecting piece. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] A torque measuring device for a track bolt comprises: a bracket 10, on which an abutment structure 20 is provided, and the abutment structure 20 is used to abut against a rib 30 on the surface of the track; a torque measuring assembly 40, which is fixedly arranged on the bracket 10, and the torque measuring assembly 40 comprises: a driving mechanism 41, which is used to provide torque; a torque transmission mechanism 42, which is used to cooperate with the bolt to be measured and transmit the torque provided by the driving mechanism 41 to the bolt to be measured; and a torque sensor 43, which is connected between the driving mechanism 41 and the torque transmission mechanism 42.

[0028] According to the technical solution of this embodiment, when the static torque test of the track bolt is performed, the torque measuring device is placed between the convex ribs 30 of the track, and the abutment structure 20 is abutted against the convex ribs 30 of the track. At this time, the driving mechanism 41 is started, the torque transmission mechanism 42 is matched with the bolt to be measured, and the torque of the driving mechanism 41 is transmitted to the bolt to be measured through the torque transmission mechanism 42. Since the abutment structure 20 is stuck on the convex rib 30 of the track, it is ensured that the bracket 10 and the torque measurement assembly 40 will not rotate as a whole, so that the torque applied by the driving mechanism 41 can be transmitted to the bolt, and the value is recorded by the torque sensor 43. In the above structure, it is no longer necessary for the operator to rotate the torque wrench to realize the recording of the bolt torque data, which reduces the labor intensity during the test on the one hand, and reduces the influence of human operation on the data results on the other hand. Therefore, the technical solution of this embodiment solves the defects of the static torque test of the track bolt in the prior art that the labor intensity is high and the data is easily affected by human factors.

[0029] like Figure 1 and Figure 2 As shown, in the technical solution of this embodiment, there are two abutment structures 20, and the two abutment structures 20 are in abutment contact with the adjacent convex ribs 30 respectively. Specifically, when performing a torque test, the two abutment structures 20 are in abutment with the two convex ribs 30 on the surface of the track respectively, so that the bracket 10 as a whole is fixed by two points in the circumferential direction to ensure that the bracket 10 does not rotate. When the driving mechanism 41 is started, since the bracket 10 and the torque measuring assembly 40 do not rotate as a whole, the torque applied by the driving mechanism 41 acts on the bolt, and the torque is balanced with the supporting force between the abutment structure 20 and the convex rib 30, so that the torque can rotate the bolt. Of course, those skilled in the art can understand that only one abutment structure 20 is provided to fix the position of the bracket 10, which is also a feasible implementation method.

[0030] like Figure 1 and Figure 2As shown, in the technical solution of this embodiment, the bracket 10 includes a fixing frame 11 and a connecting rod 12. Among them, the fixing frame 11 is used to cooperate with the torque measuring assembly 40. The first end of the connecting rod 12 is connected to the fixing frame 11, the second end of the connecting rod 12 extends downward, and the abutment structure 20 is arranged on the second end of the connecting rod 12. Specifically, the fixing frame 11 fixes the bracket 10 and the torque measuring assembly 40 together, so that when the torque test is performed, the bracket 10 and the torque measuring assembly 40 will not rotate as a whole, and the torque of the driving mechanism 41 is transmitted to the bolt. One end of the connecting rod 12 is connected to the fixing frame 11, and the other end extends downward and is used to cooperate with a position near the surface of the track. The abutment structure 20 is located at the bottom end of the connecting rod 12.

[0031] like Figure 1 and Figure 2 As shown, in the technical solution of this embodiment, there are two connecting rods 12, and the first ends of the two connecting rods 12 are respectively connected to the opposite sides of the fixing frame 11. As mentioned above, since there are two abutment structures 20 in this embodiment, accordingly, there are also two connecting rods 12, and one abutment structure 20 is provided on each of the two connecting rods 12. Further, the first ends of the two connecting rods 12 are symmetrically arranged along the central axis of the fixing frame 11.

[0032] like Figure 1 and Figure 2 As shown, in the technical solution of this embodiment, the second end of the connecting rod 12 is bent outward to form the abutment structure 20. Specifically, the second end of the connecting rod 12, that is, the lower end, is bent toward the horizontal direction, and the bending structure forms the above-mentioned abutment structure 20. Of course, the connecting rod 12 can also be set at the second end of the connecting rod 12 in other ways, such as by welding, fastener connection, etc. It should be noted that Figure 2 Those skilled in the art can understand that, as long as the projection of the connecting rod 12 on the surface of the crawler has a certain angle with the side where the rib 30 is located, the end of the connecting rod 12 can also be directly abutted against the side of the rib 30, which can also achieve the technical effect of limiting the rotation of the bracket 10. That is, the above-mentioned "the abutment structure 20 is provided at the second end of the connecting rod 12" also includes the case where the abutment structure 20 is formed at the second end of the connecting rod 12, and in this case, the end of the connecting rod 12 is the abutment structure 20.

[0033] like Figure 1 and Figure 2As shown, in the technical solution of this embodiment, the torque measurement component 40 also includes a reduction mechanism 44, the output shaft of the driving mechanism 41 is connected to the input end of the reduction mechanism 44, and the output end of the reduction mechanism 44 is connected to the torque sensor 43. Specifically, the driving mechanism 41 in this embodiment is a driving motor, and the reduction mechanism 44 has two effects, one is to slow down the speed of the motor shaft of the motor, and the other is to play the effect of torque amplification (i.e., the inverse of the transmission ratio). By amplifying the torque of the motor, the bolt is rotated as quickly as possible and the data is measured, thereby preventing the motor from being stuck for too long and causing the temperature to be too high. The reduction mechanism 44 uses gear transmission for speed change and torque amplification, which is a conventional technical means in this field, so the detailed structure is not repeated here. Further, the input shaft of the reduction mechanism 44 is connected to the motor shaft of the motor through a keyway structure, and the output shaft of the reduction mechanism 44 is connected to the torque sensor 43 through a flange.

[0034] Preferably, in this embodiment, the motor is a low-speed, high-torque motor, and the transmission ratio of the speed reduction mechanism 44 is less than 1.

[0035] like Figure 1 and Figure 2 As shown, in the technical solution of this example, there are two fixing frames 11, one of which cooperates with the driving mechanism 41, and the other fixing frame 11 cooperates with the reduction mechanism 44, wherein the connecting rod 12 is connected to both fixing frames 11. Specifically, the motor and the reduction mechanism 44 are arranged up and down, and in order to ensure that the motor itself and the reduction mechanism 44 do not rotate when the motor rotates, two fixing frames 11 are required to be fixedly matched with the motor and the reduction mechanism 44 respectively. Figure 1 and Figure 2 It can be seen that the motor and the reduction mechanism 44 are roughly in the shape of a flat cylinder, so the fixing frame 11 is a ring structure, and the two fixing frames 11 are respectively sleeved outside the motor and the reduction mechanism 44. Figure 1 and Figure 2 It can also be seen that the upper end of the connecting rod 12 is connected to the fixing frame 11 outside the motor, and when the connecting rod extends downward, it is connected to the fixing frame 11 outside the speed reduction mechanism 44. Therefore, the bracket 10, the motor and the speed reduction mechanism 44 are fixed as a whole.

[0036] like Figures 1 to 4As shown, in the technical solution of this embodiment, the torque measurement assembly 40 also includes a connector 45 arranged between the torque sensor 43 and the torque transmission mechanism 42. One end of the connector 45 is fixedly connected to the torque sensor 43, and the other end of the connector 45 is detachably connected to the torque transmission mechanism 42. Specifically, the torque transmission mechanism 42 in this embodiment is a hexagon socket, and the lower end of the hexagon socket is provided with a hexagon socket groove matched with a bolt. Since the above-mentioned hexagon socket and torque sensor 43 are both standard parts, and the connection forms of the connection ends of the two are different, an intermediate connector 45 is required to connect the torque sensor 43 and the torque transmission mechanism 42 together. Specifically, the lower end of the torque sensor 43 is a flange structure, so the upper end of the connector 45 is a flange, and the connector 45 and the torque sensor 43 are connected through the flange. The upper end of the hexagon socket is a square recess, so the lower end of the connector 45 is a square convex block. The connector 45 and the torque transmission mechanism 42 are connected together in the form of a square convex column and a square recess. Furthermore, the connecting member 45 and the torque transmission mechanism 42 are detachably connected together by plugging, so the hexagon socket can be replaced according to different types of bolts, thereby making the torque measuring device in this embodiment highly versatile.

[0037] According to the above structure, the method of using the torque measuring device in this embodiment to perform a track bolt torque test will be described below:

[0038] 1. Place the torque measuring device on the crawler, sleeve the hexagon socket outside the bolt, and adjust the angle of the bracket 10 so that the two abutting structures 20 abut against the ribs 30 adjacent to the crawler and are in the following position: Figure 2 Position shown.

[0039] 2. Connect the torque sensor 43 to the data collector;

[0040] 3. Start the data collector;

[0041] 4. Start the motor (i.e., the driving mechanism 41);

[0042] 5. Observe the collected signal of the torque sensor 43, and use the principle that the torque of the bolt decreases when it changes from a static state to a rotating state, and use the collected peak torque as the static torque of the bolt;

[0043] 6. After determining the static torque, turn off the motor and complete the experiment.

[0044] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A torque measuring device for a track bolt, characterized in that: include: A bracket (10), wherein an abutment structure (20) is provided on the bracket (10), and the abutment structure (20) is used to abut against a convex rib (30) on a surface of a crawler track; A torque measurement assembly (40) is fixedly arranged on the bracket (10), and the torque measurement assembly (40) comprises: A driving mechanism (41) for providing torque; A torque transmission mechanism (42) is used to cooperate with the bolt to be measured and transmit the torque provided by the driving mechanism (41) to the bolt to be measured; a torque sensor (43) connected between the driving mechanism (41) and the torque transmission mechanism (42); The driving mechanism (41) is a driving motor.

2. The torque measuring device according to claim 1, characterized in that: There are two abutment structures (20), and the two abutment structures (20) are in abutment contact with adjacent convex ribs (30) respectively.

3. The torque measuring device according to claim 1 or 2, characterized in that: The support (10) comprises: A fixing frame (11) configured to cooperate with the torque measuring assembly (40); A connecting rod (12), wherein a first end of the connecting rod (12) is connected to the fixing frame (11), a second end of the connecting rod (12) extends downward, and the abutment structure (20) is arranged on the second end of the connecting rod (12).

4. The torque measuring device according to claim 3, characterized in that: There are two connecting rods (12), and the first ends of the two connecting rods (12) are respectively connected to two opposite sides of the fixing frame (11).

5. The torque measuring device according to claim 3, characterized in that: The second end of the connecting rod (12) is bent outward to form the abutment structure (20).

6. The torque measuring device according to claim 3, characterized in that: The torque measurement assembly (40) further comprises a reduction mechanism (44), the output shaft of the driving mechanism (41) is connected to the input end of the reduction mechanism (44), and the output end of the reduction mechanism (44) is connected to the torque sensor (43).

7. The torque measuring device according to claim 6, characterized in that: There are two fixing frames (11), one of which cooperates with the driving mechanism (41) and the other of which cooperates with the speed reduction mechanism (44), wherein the connecting rod (12) is connected to both fixing frames (11).

8. The torque measuring device according to claim 7, characterized in that: The fixing frame (11) is an annular structure, and the fixing frame (11) is sleeved outside the driving mechanism (41) and / or the speed reduction mechanism (44).

9. The torque measuring device according to claim 1, characterized in that: The torque measurement assembly (40) further comprises a connecting member (45) arranged between the torque sensor (43) and the torque transmission mechanism (42).

10. The torque measuring device according to claim 9, characterized in that: The lower end of the torque transmission mechanism (42) is provided with a recess that matches the shape of the bolt to be measured, and the upper end of the torque transmission mechanism (42) is detachably connected to the connecting piece (45) by plugging.

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