Rotating shaft torque detection device

Abstract

The utility model discloses a rotating shaft torque detection device comprising a test motor and a torque detection device, the test motor and the torque detection device are connected with a rotating shaft fixing tool through flanges, and the rotating shaft fixing tool comprises a fixing mechanism, a driving mechanism and a plurality of locking mechanisms. The multiple locking mechanisms are fixedly connected to the front side of the fixing mechanism, and each locking mechanism comprises a threaded limiting pipe, a main mounting frame, two limiting sliding plates, an extrusion type sliding plate, a reset spring, a fixing plate, two ball driving rods, a plurality of spring telescopic rods and two spring telescopic rods. According to the utility model, the rotating shaft is fixed by using the fixing plate, and the fixing thermosensitive adhesive in a normal temperature state is adhered to the surface of the rotating shaft, so that the rotating shaft is further fixed, the rotating shaft is effectively prevented from deflecting when being driven by the tested motor to rotate, and the accuracy of torque detection is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shaft testing, in particular to a rotating shaft torque detection device. Background Art

[0002] In order to ensure that the shaft has sufficient driving force and load-bearing capacity when working to meet the normal operation requirements of the equipment, the torque of the shaft needs to be measured before the shaft is put into use. The measurement of the shaft torque can also promptly detect abnormal conditions of the shaft, such as transmission system failure, component wear or looseness, etc. This helps to carry out maintenance and repairs in advance, avoid more serious failures, and improve the reliability and safety of the equipment.

[0003] The torque test of the rotating shaft usually utilizes a motor to drive the rotating shaft to rotate, and then uses a torque detection device to detect the torque of the rotating shaft. Since the rotating shaft needs to be installed on the motor and the detection device, a fixed structure is required to fix the rotating shaft. Usually, the rotating shaft is fixed with a flange and then wrapped and tied with wire. However, this method is too cumbersome and labor-intensive to operate. Alternatively, the rotating shaft is clamped with a clamp, but this fixing method causes the rotating shaft to easily idle during rotation because the surface of the rotating shaft is too smooth. Based on the above viewpoints, technical personnel in this field have proposed a rotating shaft torque detection device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a shaft torque detection device. The shaft torque detection device of this design uses a fixing plate to fix the shaft, and a fixing thermal adhesive at room temperature will adhere to the surface of the shaft, so as to further fix the shaft, effectively avoiding the deflection of the shaft when the tested motor is driven to rotate, thereby improving the accuracy of torque detection.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A rotating shaft torque detection device, comprising a test motor and a torque detection device, wherein the test motor and the torque detection device are both connected to a rotating shaft fixing tool through a flange, the rotating shaft fixing tool comprises a fixing mechanism, a driving mechanism and a plurality of locking mechanisms, wherein the plurality of locking mechanisms are fixedly connected to the front side of the fixing mechanism, and the locking mechanism comprises a threaded limit tube, a main mounting frame, two limit slide plates, an extrusion slide plate, a reset spring, a fixing plate, two ball drive rods, a plurality of spring telescopic rods and two spring telescopic rods;

[0007] The main mounting frame is fixedly connected to the front side wall of the threaded limiting tube, the two limiting slides are respectively fixedly connected to the two side positions of the bottom of the main mounting frame, the extrusion type slide is limited and slidably connected to the oblique grooves of the two limiting slides, the two ball driving rods are respectively fixedly connected to the two side positions of the bottom of the extrusion type slide, a plurality of spring telescopic rods are respectively fixedly connected to the two sides of the bottom of the main mounting frame and are located on the outsides of the two limiting slides, the two fixing plates are respectively fixedly connected to the other ends of the plurality of spring telescopic rods on both sides, the reset spring is fixedly connected between the front side wall of the extrusion type slide and the front side wall of the main mounting frame, and the bottom balls of the two ball driving rods are respectively tightly fitted with the tops of the two spring telescopic rods;

[0008] Through the above technical scheme, the test motor is used to drive the shaft to be tested to rotate and the torque of the shaft seat to be tested is detected by the torque detection device. When fixing the shaft to be tested, the shaft is first placed on the shaft fixing tooling on the movable end of the test motor, and then the driving mechanism is rotated. The extrusion slides on the several locking mechanisms are driven by the driving mechanism to move forward, and the extrusion slides slide along the inclined groove on the limit slide when moving, and the ball drive rod on the extrusion slide squeezes the two fixed plates during the downward sliding process, and then the shaft is fixed by several fixed plates moving inward. In the process of rotating the driving mechanism, several locking mechanisms can be synchronously driven to fix the shaft, and the operation is extremely convenient. Then, the shaft fixing tooling on the torque detection device is used to fix the other side of the shaft at the same time. After the test is completed, the two driving mechanisms are rotated in the opposite direction. At this time, the extrusion slide moves backward under the drive of the reset spring, and the ball drive rod is reset. After the extrusion of the ball drive rod is lost, the spring telescopic rod drives the fixed plate to reset and no longer fixes the shaft, so the shaft can be easily removed.

[0009] Further, the driving mechanism comprises a threaded ring and a number of driving plates matching the number of the locking mechanism, a number of the driving plates are fixedly connected to the front side wall of the threaded ring, and a number of the driving plates are attached to the rear side wall of the extrusion type slide plate, and the threaded ring is threadedly connected to the outer side wall of the threaded limit tube;

[0010] Through the above technical solution, the driving plate is driven forward by rotating the threaded ring, thereby driving the extrusion type slide plate to move toward the front side.

[0011] Further, the fixing mechanism includes a flange and a mounting seat, a plurality of the locking mechanisms are fixedly connected to the front side wall of the mounting seat, and the flange is fixedly connected to the rear side wall of the mounting seat, and the two rotating shaft fixing fixtures are respectively connected to the test motor and the torque detection device through the flange;

[0012] Through the above technical solution, the installation and disassembly of the shaft fixing fixture on the test motor or torque detection equipment can be easily achieved through the flange.

[0013] Furthermore, a power supply mounting frame is fixedly connected to the front side of the top of the main mounting frame, a power supply compartment is installed on the upper side wall of the power supply mounting frame, and a built-in power supply is installed in the power supply compartment;

[0014] Through the above technical solution, the heating plate is powered by the built-in power supply.

[0015] Furthermore, the bottoms of the two fixing plates are provided with fixed heat-sensitive adhesive, and the interiors of the two fixing plates are provided with heating plates;

[0016] Through the above technical solution, the rotating shaft is fixed by fixing the thermal adhesive. Under normal temperature, the fixed thermal adhesive will adhere to the surface of the rotating shaft, so as to further fix the rotating shaft, effectively avoiding the deflection of the rotating shaft when the tested motor is driven to rotate, thereby improving the accuracy of torque detection. When the heating plate heats the fixed thermal adhesive, the fixed thermal adhesive loses its viscosity and there is no residue of the fixed thermal adhesive on the surface of the rotating shaft. While ensuring that the rotating shaft can be easily removed, the adhesive can be prevented from affecting the use of the rotating shaft.

[0017] Furthermore, the built-in power supply is electrically connected to the two heating plates respectively;

[0018] Through the above technical solution, the normal use of the heating plate is guaranteed when the shaft fixing fixture is rotating.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, the rotating shaft is fixed by a fixing plate. During the process of rotating the driving mechanism, several locking mechanisms can be synchronously driven to fix the rotating shaft, which is extremely convenient to operate.

[0021] 2. In the utility model, the rotating shaft is fixed by fixing the thermal adhesive. Under normal temperature, the fixed thermal adhesive will adhere to the surface of the rotating shaft, thereby further fixing the rotating shaft, effectively avoiding the deflection of the rotating shaft when the tested motor is driven to rotate, thereby improving the accuracy of torque detection.

[0022] 3. In the utility model, when the heating plate heats the fixed thermal adhesive, the fixed thermal adhesive loses its viscosity and no residue of the fixed thermal adhesive remains on the surface of the shaft, thereby ensuring that the shaft can be easily removed and preventing the adhesive from affecting the use of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall diagram of a rotating shaft torque detection device proposed by the utility model;

[0024] Figure 2This is an axonometric diagram of a rotating shaft fixing tool in a rotating shaft torque detection device proposed by the utility model;

[0025] Figure 3 This is an exploded view of a rotating shaft fixing tool in a rotating shaft torque detection device proposed by the utility model;

[0026] Figure 4 The figure is a schematic diagram of a locking mechanism in a rotating shaft torque detection device proposed by the utility model.

[0027] Legend:

[0028] 1. Test motor; 2. Shaft fixing fixture; 3. Torque detection equipment;

[0029] 21. Fixing mechanism; 22. Driving mechanism; 23. Locking mechanism;

[0030] 211. flange; 212. mounting seat;

[0031] 221, threaded ring; 222, drive plate;

[0032] 231. Threaded limit tube; 232. Main mounting frame; 233. Extrusion slide plate; 234. Power supply mounting frame; 235. Power supply compartment; 236. Built-in power supply; 237. Reset spring; 238. Limit slide plate; 239. Fixed plate; 2310. Spring telescopic rod; 2311. Heating plate; 2312. Fixed thermal adhesive; 2313. Ball drive rod. DETAILED DESCRIPTION

[0033] 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 in 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.

[0034] Reference Figure 1-4 The utility model provides an embodiment: a rotating shaft torque detection device, including a test motor 1 and a torque detection device 3, the test motor 1 and the torque detection device 3 are both connected with a rotating shaft fixing tool 2 through a flange, the rotating shaft fixing tool 2 includes a fixing mechanism 21, a driving mechanism 22 and a plurality of locking mechanisms 23, the plurality of locking mechanisms 23 are fixedly connected to the front side of the fixing mechanism 21, and the locking mechanism 23 includes a threaded limiting tube 231, a main mounting frame 232, two limiting slide plates 238, an extrusion slide plate 233, a reset spring 237, a fixing plate 239, two ball driving rods 2313, a plurality of spring telescopic rods 2310 and two spring telescopic rods 2310.

[0035] The main mounting frame 232 is fixedly connected to the front side wall of the threaded limiting tube 231, and two limiting slide plates 238 are respectively fixedly connected to the two sides of the bottom of the main mounting frame 232. The extrusion slide plate 233 is limitedly slidably connected to the oblique grooves of the two limiting slide plates 238. Two ball driving rods 2313 are respectively fixedly connected to the two sides of the bottom of the extrusion slide plate 233. A plurality of spring telescopic rods 2310 are respectively fixedly connected to the two sides of the bottom of the main mounting frame 232 and are located on the outside of the two limiting slide plates 238. The two fixing plates 239 are respectively fixedly connected to the other end of the spring telescopic rods 2310 on both sides, the reset spring 237 is fixedly connected between the front side wall of the extrusion type slide plate 233 and the front side wall of the main mounting frame 232, and the bottom balls of the two ball drive rods 2313 are respectively tightly fitted with the tops of the two spring telescopic rods 2310. The test motor 1 is used to drive the shaft to be tested to rotate and the torque of the shaft seat to be tested is detected by the torque detection device 3. When fixing the shaft to be tested, first place the shaft on the shaft on the active end of the test motor 1. The fixing tool 2 is then rotated, and the driving mechanism 22 is used to drive the extrusion slides 233 on the locking mechanisms 23 to move forward. The extrusion slide 233 slides along the inclined groove on the limiting slide 238 when moving, and the ball driving rod 2313 on the extrusion slide 233 squeezes the two fixing plates 239 during the downward sliding process, and then the rotating shaft is fixed by the fixing plates 239 moving inward. In the process of rotating the driving mechanism 22, the locking mechanisms 23 can be synchronously driven to fix the rotating shaft, which is extremely convenient to operate. Subsequently, the rotating shaft fixing tool 2 on the torque detection device 3 is used to fix the other side of the rotating shaft. After the test is completed, the two driving mechanisms 22 are rotated in the opposite direction. At this time, the extrusion slide 233 moves backward under the drive of the reset spring 237, and the ball driving rod 2313 is reset. After the extrusion of the ball driving rod 2313 is lost, the spring telescopic rod 2310 drives the fixing plate 239 to reset and no longer fixes the rotating shaft, so the rotating shaft can be easily removed.

[0036] The driving mechanism 22 includes a threaded ring 221 and a number of driving plates 222 matching the number of the locking mechanism 23. The number of driving plates 222 are fixedly connected to the front side wall of the threaded ring 221, and the number of driving plates 222 are attached to the rear side wall of the extrusion type slide plate 233. The threaded ring 221 is threadedly connected to the outer side wall of the threaded limiting tube 231. The driving plates 222 are extended forward by rotating the threaded ring 221, thereby driving the extrusion type slide plate 233 to move forward.

[0037] The fixing mechanism 21 includes a flange 211 and a mounting seat 212, a plurality of locking mechanisms 23 are fixedly connected to the front side wall of the mounting seat 212, and the flange 211 is fixedly connected to the rear side wall of the mounting seat 212. The two rotating shaft fixing fixtures 2 are respectively connected to the test motor 1 and the torque detection device 3 through the flange 211. The installation and disassembly of the rotating shaft fixing fixture 2 on the test motor 1 or the torque detection device 3 can be easily realized through the flange 211.

[0038] A power supply mounting frame 234 is fixedly connected to the top front side of the main mounting frame 232 , a power supply compartment 235 is installed on the upper side wall of the power supply mounting frame 234 , and a built-in power supply 236 is installed in the power supply compartment 235 , and the heating plate 2311 is powered by the built-in power supply 236 .

[0039] A fixed thermal adhesive 2312 is provided at the bottom of the two fixing plates 239, and a heating plate 2311 is provided inside the two fixing plates 239. The built-in power supply 236 is electrically connected to the two heating plates 2311 respectively, ensuring the normal use of the heating plates 2311 when the shaft fixing tooling 2 rotates. The shaft is fixed by the fixed thermal adhesive 2312. Under normal temperature, the fixed thermal adhesive 2312 will adhere to the surface of the shaft, thereby further fixing the shaft, effectively avoiding the deflection of the shaft when the tested motor 1 is driven to rotate, thereby improving the accuracy of torque detection. After the heating plate 2311 heats the fixed thermal adhesive 2312, the fixed thermal adhesive 2312 loses its viscosity, and the fixed thermal adhesive 2312 has no residue on the surface of the shaft. While ensuring that the shaft can be easily removed, the adhesive can be prevented from affecting the use of the shaft.

[0040] Working principle: Use the test motor 1 to drive the tested shaft to rotate and detect the torque of the tested shaft seat through the torque detection device 3. When fixing the tested shaft, first place the shaft on the shaft fixing fixture 2 on the movable end of the test motor 1, and then rotate the driving mechanism 22. Drive the extrusion slides 233 on the locking mechanisms 23 to move forward through the driving mechanism 22. When moving, the extrusion slides 233 slide along the inclined groove on the limiting slide 238. When the ball driving rod 2313 on the extrusion slide 233 slides downward, it squeezes the two fixing plates 239, and then fixes the shaft through the fixing plates 239 moving inward. In the process of rotating the driving mechanism 22, the locking mechanisms 23 can be synchronously driven to fix the shaft, which is extremely convenient to operate. Then, the other side of the shaft is fixed by the shaft fixing fixture 2 on the torque detection device 3 at the same time. After the test is completed, the two driving mechanisms 22 are rotated in the opposite direction. At this time, the extrusion slide plate 233 moves backward under the drive of the reset spring 237, and the ball drive rod 2313 is reset. After the extrusion of the ball drive rod 2313 is lost, the spring telescopic rod 2310 drives the fixing plate 239 to reset and no longer fix the rotating shaft, so that the rotating shaft can be easily removed. The rotating shaft can be fixed by fixing the thermal sensitive adhesive 2312. Under normal temperature, the fixed thermal sensitive adhesive 2312 will adhere to the surface of the rotating shaft, thereby further fixing the rotating shaft, effectively avoiding the deflection of the rotating shaft when the tested motor 1 is driven to rotate, thereby improving the accuracy of torque detection, and when the heating plate 2311 heats the fixed thermal sensitive adhesive 2312, the fixed thermal sensitive adhesive 2312 loses its viscosity, and the fixed thermal sensitive adhesive 2312 has no residue on the surface of the rotating shaft, while ensuring that the rotating shaft is easily removed, it can avoid the adhesive affecting the use of the rotating shaft.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A shaft torque detection device, comprising a test motor (1) and a torque detection device (3), characterized in that: The test motor (1) and the torque detection device (3) are both connected to a shaft fixing fixture (2) via flanges, the shaft fixing fixture (2) comprising a fixing mechanism (21), a driving mechanism (22) and a plurality of locking mechanisms (23), the plurality of locking mechanisms (23) being fixedly connected to the front side of the fixing mechanism (21), the locking mechanism (23) comprising a threaded limiting tube (231), a main mounting frame (232), two limiting slide plates (238), an extrusion slide plate (233), a reset spring (237), a fixing plate (239), two ball drive rods (2313), a plurality of spring telescopic rods (2310) and two spring telescopic rods (2310); The main mounting frame (232) is fixedly connected to the front side wall of the threaded limiting tube (231); the two limiting slide plates (238) are respectively fixedly connected to the two sides of the bottom of the main mounting frame (232); the extrusion slide plate (233) is limitedly slidably connected to the oblique grooves of the two limiting slide plates (238); the two ball driving rods (2313) are respectively fixedly connected to the two sides of the bottom of the extrusion slide plate (233); the plurality of spring telescopic rods (2310) are respectively fixedly connected to the two sides of the bottom of the extrusion slide plate (233); The two fixing plates (239) are connected to the bottom sides of the main mounting frame (232) and are located on the outside of the two limiting slide plates (238). The two fixing plates (239) are respectively fixedly connected to the other ends of the plurality of spring telescopic rods (2310) on both sides. The return spring (237) is fixedly connected between the front side wall of the extrusion slide plate (233) and the front side wall of the main mounting frame (232). The bottom balls of the two ball driving rods (2313) are respectively tightly fitted with the tops of the two spring telescopic rods (2310).

2. A shaft torque detection device according to claim 1, characterized in that: The driving mechanism (22) comprises a threaded ring (221) and a plurality of driving plates (222) whose number matches that of the locking mechanism (23); a plurality of the driving plates (222) are fixedly connected to the front side wall of the threaded ring (221), and a plurality of the driving plates (222) are attached to the rear side wall of the extrusion type slide plate (233); and the threaded ring (221) is threadedly connected to the outer side wall of the threaded limiting tube (231).

3. A shaft torque detection device according to claim 1, characterized in that: The fixing mechanism (21) comprises a flange (211) and a mounting seat (212), a plurality of the locking mechanisms (23) are fixedly connected to the front side wall of the mounting seat (212), and the flange (211) is fixedly connected to the rear side wall of the mounting seat (212), and the two rotating shaft fixing fixtures (2) are respectively connected to the test motor (1) and the torque detection device (3) through the flange (211).

4. A shaft torque detection device according to claim 1, characterized in that: A power supply mounting frame (234) is fixedly connected to the front of the top of the main mounting frame (232), a power supply compartment (235) is installed on the upper side wall of the power supply mounting frame (234), and a built-in power supply (236) is installed in the power supply compartment (235).

5. A shaft torque detection device according to claim 4, characterized in that: The bottom of the two fixing plates (239) is provided with a fixing thermal adhesive (2312), and the inside of the two fixing plates (239) is provided with a heating plate (2311).

6. A shaft torque detection device according to claim 5, characterized in that: The built-in power source (236) is electrically connected to the two heating plates (2311) respectively.

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