Automobile belt pulley tightness detection system

Abstract

The utility model discloses an automobile belt pulley tightness detection system, which comprises a mounting plate, a support frame is arranged on the upper side of the mounting plate, a connecting mechanism is arranged at the joint of the lower end of the support frame and the mounting plate, a push rod is slidably connected to the middle of the upper end of the support frame, a pressure sensor is arranged below the push rod, and the pressure sensor is connected with the support frame. The pushing rod is tightly pressed on the pressure sensor, the upper end of the pushing rod is fixedly connected with a positioning mechanism, and the upper end of the supporting frame is slidably connected with an anti-deviation mechanism; through the designed positioning mechanism, the push rod and the pressure sensor, the automobile belt is positioned through the positioning mechanism during use, then the push rod is driven by the positioning mechanism to be tightly pressed on the pressure sensor, and the tightness of the belt is judged according to the stress condition of the pressure sensor; and cracks on the surface of the belt are detected through the infrared detection head, so that the phenomenon that the belt is damaged and cannot be found in time is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a system for detecting the tightness of an automobile pulley. Background Art

[0002] A car is a non-track-borne vehicle with four or more wheels that is driven by power. It is mainly used for: carrying people and (or) goods; towing vehicles carrying people and (or) goods; and special purposes. The function of the car chassis is to support and install the assembly of the car engine and its components to form the overall shape of the car, and to receive the power of the engine to make the car move and ensure normal driving. The chassis consists of five parts: the transmission system, the running system, the steering system, the suspension system, and the braking system. The power generated by the car engine is transmitted to the drive wheels by the transmission system. The transmission system has functions such as deceleration, speed change, reversing, power interruption, inter-wheel differential and inter-axle differential. It works with the engine to ensure the normal driving of the car under various working conditions and has good power and economy. It is mainly composed of clutch, transmission, universal joint, drive shaft and drive axle.

[0003] Patent No. 97198607.X provides an automotive belt tensioner, which is used to tension a drive belt or a timing belt. The belt tensioner includes an eccentric adjustment member, whose end surface is configured and arranged to be directly mounted in face-to-face engagement with the mounting surface of the belt tensioner on the engine frame. A swivel structure is mounted on the eccentric adjustment member to swivel between a first position and a second position, and a belt tensioner is mounted to rotate on the swivel structure.

[0004] The hybrid vehicle belt tensioning device with patent number 201610216273.9 provides a transmission belt drive system installed on an internal combustion engine with a reversible generator or a starter motor / generator, specifically a hybrid vehicle belt tensioning device. A hybrid vehicle belt tensioning device includes a support plate installed at the front end of the starter motor / generator, and a first tensioner and a second tensioner installed on the support plate. The two tensioners have similar structures and both include a tensioner pulley and a tensioning arm. The tensioner pulley is installed at one end of the tensioning arm, and a pivot is provided on the other end of the tensioning arm. The tensioning arm rotates around the pivot. A housing is hinged on the pivot. The housing and the tensioner pulley are located on the same side of the tensioning arm. A stop device is provided on the housing, and a stopper matching the stop device is provided on the tensioning arm.

[0005] The tension of the belt on the existing automobile pulley is usually adjusted by a tensioning wheel. When in use, the tension of the belt of the pulley cannot be detected in time, so as to be handled in time. When detecting, usually only a simple tension detection can be performed, and the degree of belt failure cannot be detected. Therefore, it is urgent to design an automobile pulley tension detection system to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art that the tightness of the belt of the pulley cannot be discovered in time so as to be dealt with in time, and that during detection, only a simple tightness detection can be performed but the degree of belt failure cannot be detected, and a car pulley tightness detection system is proposed.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A car pulley tightness detection system comprises a mounting plate, a support frame is arranged on the upper side of the mounting plate, a connecting mechanism is arranged at the connection between the lower end of the support frame and the mounting plate, a push rod is slidably connected to the middle part of the upper end of the support frame, a pressure sensor is arranged below the push rod, the push rod is tightly pressed against the pressure sensor, a positioning mechanism is fixedly connected to the upper end of the push rod, an anti-deflection mechanism is slidably connected to the upper end of the support frame, a support spring is fixedly connected to the middle part of the anti-deflection mechanism, two ends of the support spring are respectively fixedly connected to the anti-deflection mechanism and the support frame, and the support spring is sleeved on the outer side of the push rod, the positioning mechanism comprises a positioning roller and a positioning frame, the positioning frame is fixedly installed on the upper end of the push rod by bolts, the positioning roller is rotatably connected to the inner side of the positioning frame by a bearing, and an infrared detection head is fixedly connected to the inner middle part of the positioning frame.

[0009] Preferably, a limiting groove is provided in the middle of the positioning roller, and the cross-sectional shape of the limiting groove is set to be an arc.

[0010] Preferably, the anti-deflection mechanism includes a guide rod, an anti-deflection roller and a positioning plate, the lower end of the guide rod is slidably mounted on a support frame, the positioning plate is fixedly mounted on the upper end of the guide rod by bolts, the upper end of the support spring is fixedly connected to the positioning plate by bolts, and the anti-deflection roller is rotatably mounted on the upper surface of the positioning plate by a bearing.

[0011] Preferably, anti-deviation rollers are provided at four corners of the upper surface of the positioning plate, and positions between the anti-deviation rollers correspond to the middle of the positioning rollers.

[0012] Preferably, a buffer spring is fixedly connected to the lower side of the pressure sensor, and the lower end of the buffer spring is fixedly connected to the mounting plate by means of screws.

[0013] Preferably, a guide plate is provided on the outer side of the pressure sensor, the buffer spring is installed on the inner side of the guide plate, and the pressure sensor is slidably connected to the guide plate.

[0014] Preferably, the connecting mechanism includes a fixing plate, the fixing plate is welded on both ends of the mounting plate, the supporting frame is clamped on one side of the fixing plate, one end of the fixing plate is screwed with a knob screw through a threaded hole, a pushing groove is provided inside the fixing plate, one end of the pushing groove is slidably connected with a pushing block, one end of the knob screw is rotatably connected to the pushing block through a bearing, the other end of the pushing groove is slidably connected with a connecting block, the pushing block is tightly pressed on the connecting block, the lower end of the connecting block is fixedly connected with a reset spring, a fixing plug is provided on one side of the connecting block, a fixing slot is provided on one side of the supporting frame, and the fixing plug is inserted into the fixing slot.

[0015] Preferably, the shape of the pushing block is set to be a right triangle, and the inclined surface of the pushing block is tightly attached to the connecting block.

[0016] Preferably, the support frame is configured to be U-shaped, and two legs of the support frame are fixedly connected to the mounting plate via a connecting mechanism.

[0017] Preferably, a guide cylinder is provided at the upper end of the support frame, and the guide rod is slidably connected to the support frame via the guide cylinder.

[0018] The beneficial effects of the utility model are:

[0019] 1. Through the designed positioning mechanism, push rod and pressure sensor, the automobile belt is positioned through the positioning mechanism during use, and then the positioning mechanism drives the push rod to press tightly on the pressure sensor. The tightness of the belt is judged by the force condition of the pressure sensor, and the cracks on the surface of the belt are detected by the infrared detection head to avoid the phenomenon that the belt is damaged but cannot be discovered in time.

[0020] 2. Through the designed anti-deviation mechanism, the belt is limited by the anti-deviation roller during the belt inspection to avoid deviation due to loose belt during inspection, making the inspection system more convenient to use.

[0021] 3. Through the designed buffer spring, the tightness is judged by the force applied to the pressure sensor during use. During long-term use, the pressure sensor may be subjected to fatigue damage due to long-term force. The elastic force of the buffer spring can be used for buffering protection, thereby avoiding fatigue damage to the pressure sensor.

[0022] 4. Through the designed connection mechanism, when disassembling the support frame, you only need to rotate the knob screw to cooperate with the reset spring and the push block to move the connection block, thereby driving the fixed plug to be inserted into the fixed slot or pulled out from the fixed slot, thereby completing the installation and disassembly, which is more convenient when disassembling, repairing or replacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a front view structural schematic diagram of a vehicle pulley tightness detection system proposed by the utility model;

[0024] Figure 2 This is a side structural schematic diagram of a vehicle pulley tightness detection system proposed by the utility model;

[0025] Figure 3 This is a schematic diagram of the positioning mechanism structure of a vehicle pulley tightness detection system proposed by the utility model;

[0026] Figure 4 The utility model provides a schematic diagram of the structure of the connecting mechanism of the automobile pulley tightness detection system.

[0027] In the figure: 1 mounting plate, 2 supporting frame, 3 positioning plate, 4 anti-deviation mechanism, 5 positioning mechanism, 6 supporting spring, 7 pushing rod, 8 pressure sensor, 9 connecting mechanism, 10 guide plate, 11 buffer spring, 12 guide rod, 13 anti-deviation roller, 14 positioning roller, 15 positioning frame, 16 infrared detection head, 17 knob screw, 18 fixing plate, 19 pushing slot, 20 pushing block, 21 connecting block, 22 reset spring, 23 fixing slot, 24 fixing plug. DETAILED DESCRIPTION

[0028] 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.

[0029] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] Please also see Figures 1 to 4 A vehicle pulley tightness detection system includes a mounting plate 1, a support frame 2 is arranged on the upper side of the mounting plate 1, a connecting mechanism 9 is arranged at the connection between the lower end of the support frame 2 and the mounting plate 1, a push rod 7 is slidably connected to the middle part of the upper end of the support frame 2, a pressure sensor 8 is arranged below the push rod 7, the model of the pressure sensor 8 is LC103B-25, the push rod 7 is pressed tightly on the pressure sensor 8, the upper end of the push rod 7 is fixedly connected to a positioning mechanism 5, the upper end of the support frame 2 is slidably connected to an anti-deflection mechanism 4, the middle part of the anti-deflection mechanism 4 is fixedly connected to a support spring 6, and the two ends of the support spring 6 are respectively connected to the anti-deflection mechanism 4 and the support The frame 2 is fixedly connected, and the supporting spring 6 is sleeved on the outside of the pushing rod 7. The positioning mechanism 5 includes a positioning roller 14 and a positioning frame 15. The positioning frame 15 is fixedly installed on the upper end of the pushing rod 7 by bolts. The positioning roller 14 is rotatably connected to the inner side of the positioning frame 15 through a bearing, and an infrared detection head 16 is fixedly connected to the inner middle part of the positioning frame 15. The belt passes between the positioning rollers 14, and the positioning frame 15 is driven to slide down by the pressure of the tightness of the belt, thereby pushing the pushing rod 7 to be pressed tightly against the pressure sensor 8. The tightness of the belt is judged by the force condition of the pressure sensor 8, and the cracks on the surface of the belt are detected by the infrared detection head 16.

[0032] In an embodiment provided by the utility model, a limiting groove is provided in the middle of the positioning roller 14, and the cross-sectional shape of the limiting groove is set to be an arc, so that the positioning roller 14 can position the belt conveniently.

[0033] In another embodiment provided by the utility model, the anti-deviation mechanism 4 includes a guide rod 12, an anti-deviation roller 13 and a positioning plate 3. The lower end of the guide rod 12 is slidably installed on the support frame 2, the positioning plate 3 is fixedly installed on the upper end of the guide rod 12 by bolts, the upper end of the support spring 6 is fixedly connected to the positioning plate 3 by bolts, the anti-deviation roller 13 is rotatably installed on the upper surface of the positioning plate 3 through a bearing, the belt is limited by the anti-deviation roller 13, and the anti-deviation roller 13 is convenient to slide down with the belt through the positioning plate 3 and the guide rod 12.

[0034] In another embodiment provided by the utility model, anti-skew rollers 13 are provided at the four corners of the upper surface of the positioning plate 3, and the positions between the anti-skew rollers 13 correspond to the middle of the positioning roller 14, so that the anti-skew rollers 13 have a better effect in limiting the belt.

[0035] In an embodiment provided by the utility model, a buffer spring 11 is fixedly connected to the lower side of the pressure sensor 8, and the lower end of the buffer spring 11 is fixedly connected to the mounting plate 1 by screws, so that the buffer spring 11 provides buffer protection for the pressure sensor 8.

[0036] In another embodiment provided by the utility model, a guide plate 10 is provided on the outer side of the pressure sensor 8, a buffer spring 11 is installed on the inner side of the guide plate 10, and the pressure sensor 8 is slidably connected to the guide plate 10. The pressure sensor 8 is guided by the guide plate 10 to avoid the phenomenon of force deviation of the pressure sensor 8.

[0037] In another embodiment provided by the utility model, the connecting mechanism 9 includes a fixing plate 18, the fixing plate 18 is welded to both ends of the mounting plate 1, the support frame 2 is clamped on one side of the fixing plate 18, one end of the fixing plate 18 is screwed with a knob screw 17 through a threaded hole, a pushing groove 19 is provided inside the fixing plate 18, one end of the pushing groove 19 is slidably connected with a pushing block 20, one end of the knob screw 17 is rotatably connected to the pushing block 20 through a bearing, and the other end of the pushing groove 19 is slidably connected with a connecting block 21, the pushing block 20 is tightly pressed on the connecting block 21, and a reset spring 22 is fixedly connected to the lower end of the connecting block 21, a fixing plug 24 is provided on one side of the connecting block 21, a fixing slot 23 is provided on one side of the support frame 2, the fixing plug 24 is inserted into the fixing slot 23, and the knob screw 17 is rotated to push the pushing block 20 to move, so that the pushing block 20 pushes the connecting block 21 to slide, thereby driving the fixing plug 24 to insert into the fixing slot 23, thereby fixing the support frame 2.

[0038] In an embodiment provided by the utility model, the shape of the pushing block 20 is set to be a right triangle, and the inclined surface of the pushing block 20 is closely attached to the connecting block 21, so that the pushing block 20 can push the connecting block 21 to move.

[0039] In another embodiment provided by the utility model, the shape of the support frame 2 is set to be U-shaped, and the two legs of the support frame 2 are fixedly connected to the mounting plate 1 through a connecting mechanism 9, which is convenient for the support frame 2 to support, and it is more convenient to fix the support frame 2 through the connecting mechanism 9.

[0040] In another embodiment provided by the utility model, a guide cylinder is provided at the upper end of the support frame 2, and the guide rod 12 is slidably connected to the support frame 2 through the guide cylinder, so as to facilitate the guide rod 12 to slide on the support frame 2, thereby facilitating the positioning frame 15 to slide down and drive the push rod 7 to press on the pressure sensor 8.

[0041] Working principle: When in use, the mounting plate 1 is fixed inside the car, and then the two legs of the support frame 2 are engaged on one side of the fixing plate 18. The pushing block 20 is pushed to move by rotating the knob screw 17, so that the pushing block 20 pushes the connecting block 21 to slide, thereby driving the fixing plug 24 to be inserted into the fixing slot 23, thereby fixing the support frame 2. At the same time, the belt of the pulley passes between the positioning rollers 14, and the positioning frame 15 is driven to slide down by the pressure of the tightness of the belt, thereby pushing the pushing rod 7 to be pressed tightly against the pressure sensor 8. The tightness of the belt is judged by the force condition of the pressure sensor 8. When the pressure sensor 8 is under force, it is buffered by the buffer spring 11, thereby avoiding fatigue damage of the pressure sensor 8 after long-term use. During detection, the anti-deviation rollers 13 are clamped on both sides of the belt to avoid the belt from deviating from its position, and it is convenient to detect cracks on the surface of the belt through the infrared detection head 16 on the inside of the positioning frame 15.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A car pulley tightness detection system, characterized in that: The invention comprises a mounting plate (1), a support frame (2) is provided on the upper side of the mounting plate (1), a connection mechanism (9) is provided at the connection between the lower end of the support frame (2) and the mounting plate (1), a push rod (7) is slidably connected to the middle part of the upper end of the support frame (2), a pressure sensor (8) is provided below the push rod (7), the push rod (7) is pressed tightly against the pressure sensor (8), the upper end of the push rod (7) is fixedly connected to a positioning mechanism (5), the upper end of the support frame (2) is slidably connected to an anti-deflection mechanism (4), the middle part of the anti-deflection mechanism (4) is fixedly connected to a support spring (6), the two ends of the support spring (6) are respectively fixedly connected to the anti-deflection mechanism (4) and the support frame (2), and the support spring (6) is sleeved on the outer side of the push rod (7); The positioning mechanism (5) comprises a positioning roller (14) and a positioning frame (15). The positioning frame (15) is fixedly mounted on the upper end of the push rod (7) by means of bolts. The positioning roller (14) is rotatably connected to the inner side of the positioning frame (15) by means of a bearing. An infrared detection head (16) is fixedly connected to the inner middle part of the positioning frame (15).

2. The automobile pulley tightness detection system according to claim 1, characterized in that: A limiting groove is provided in the middle of the positioning roller (14), and the cross-sectional shape of the limiting groove is set to be an arc.

3. The automobile pulley tightness detection system according to claim 1, characterized in that: The anti-deflection mechanism (4) comprises a guide rod (12), an anti-deflection roller (13) and a positioning plate (3); the lower end of the guide rod (12) is slidably mounted on the support frame (2); the positioning plate (3) is fixedly mounted on the upper end of the guide rod (12) by bolts; the upper end of the support spring (6) is fixedly connected to the positioning plate (3) by bolts; the anti-deflection roller (13) is rotatably mounted on the upper surface of the positioning plate (3) by a bearing; a guide cylinder is provided at the upper end of the support frame (2); the guide rod (12) is slidably connected to the support frame (2) by the guide cylinder; anti-deflection rollers (13) are provided at the four corners of the upper surface of the positioning plate (3), and the position between the anti-deflection rollers (13) corresponds to the middle of the positioning roller (14).

4. The automobile pulley tightness detection system according to claim 1, characterized in that: A buffer spring (11) is fixedly connected to the lower side of the pressure sensor (8), and the lower end of the buffer spring (11) is fixedly connected to the mounting plate (1) by screws. A guide plate (10) is provided on the outer side of the pressure sensor (8), and the buffer spring (11) is installed on the inner side of the guide plate (10), and the pressure sensor (8) is slidably connected to the guide plate (10).

5. The automobile pulley tightness detection system according to claim 1, characterized in that: The connecting mechanism (9) includes a fixing plate (18), the fixing plate (18) is welded to both ends of the mounting plate (1), the support frame (2) is engaged with one side of the fixing plate (18), one end of the fixing plate (18) is screwed with a knob screw (17) through a threaded hole, a pushing groove (19) is provided inside the fixing plate (18), one end of the pushing groove (19) is slidably connected to a pushing block (20), one end of the knob screw (17) is rotatably connected to the pushing block (20) through a bearing, and the pushing groove (19) is provided with a push block (20) and a push block (20) connected to the push block (20) through a bearing. ) is slidably connected to a connecting block (21), the pushing block (20) is tightly pressed against the connecting block (21), the lower end of the connecting block (21) is fixedly connected to a return spring (22), a fixed plug (24) is provided on one side of the connecting block (21), a fixed slot (23) is provided on one side of the support frame (2), the fixed plug (24) is inserted into the fixed slot (23), the shape of the pushing block (20) is set to be a right triangle, and the inclined surface of the pushing block (20) is tightly attached to the connecting block (21).

6. The automobile pulley tightness detection system according to claim 1, characterized in that: The support frame (2) is configured to be U-shaped, and the two legs of the support frame (2) are fixedly connected to the mounting plate (1) via a connecting mechanism (9).

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