Dynamic balance testing device in hollow belt shaft production

Abstract

The utility model belongs to the technical field of hollow belt shaft detection, and particularly relates to a dynamic balance testing device in hollow belt shaft production, which comprises a base, a driving mechanism, a control host, a detection support frame and a driving support frame are mounted on the base, and the driving mechanism comprises a driving shaft, a belt transmission mechanism and a servo motor. The detection supporting frame and the driving supporting frame each comprise a first connecting base and a second connecting base, the first connecting bases are rotationally connected with telescopic oil cylinders, the telescopic oil cylinders are rotationally connected with connecting arms through connecting pins, the bottom ends of the connecting arms are rotationally connected with the second connecting bases and a driving shaft, and lower supporting wheels are installed on the driving shaft and the second connecting bases. A pin shaft type pressure sensor is inserted into the top end of the connecting arm, and an upper supporting wheel is rotationally installed on the outer side of the pin shaft type pressure sensor and on the connecting arm. The hollow belt shaft can be automatically pressed and locked, and the detection stability is ensured; the unbalance amount and the vibration level of the hollow belt shaft can be obtained by displaying the pressure value information of the pin shaft type pressure sensor.

Description

Technical Field

[0001] The utility model belongs to the technical field of hollow belt shaft detection, and in particular relates to a dynamic balance testing device in the production of a hollow belt shaft. Background Art

[0002] The hollow shaft of the belt conveyor is a shaft with a hollow structure, which is usually used in the belt transmission system. Compared with the solid shaft, the hollow shaft is relatively light because it is hollow inside, which helps to reduce the weight of the entire belt conveyor system, reduce energy consumption, and improve the operating efficiency of the equipment; at the same time, the structure of the hollow shaft also makes it have a better heat dissipation effect. For equipment that needs to run for a long time, this helps to reduce overheating problems and improve the stability and reliability of the equipment.

[0003] Maintaining the dynamic balance of the hollow shaft is crucial to improving the overall operating stability of the belt conveyor: a hollow shaft with poor dynamic balance may generate loud noise during operation, and the dynamic balance of the hollow shaft will also cause additional wear and fatigue during operation, affecting the service life of the belt conveyor; in addition, a hollow shaft with poor dynamic balance may cause the belt conveyor to slip, deviate, and other problems during operation, affecting production efficiency and product quality. Therefore, it is necessary to inspect the dynamic balance of the hollow belt shaft before assembling it, and the existing technology lacks equipment that can quickly and effectively detect the dynamic balance index of the hollow belt shaft. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a dynamic balance test device for hollow belt shaft production, so as to solve the problem in the prior art that there is a lack of equipment that can quickly and effectively detect the dynamic balance index of the hollow belt shaft.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a dynamic balance test device in the production of a hollow belt shaft, comprising a base, a driving mechanism and a control host are installed on the top surface of the base, the driving mechanism comprises a driving shaft, a belt transmission mechanism and a servo motor, a detection support frame and a driving support frame are arranged on the left and right sides of the top surface of the base, the number of the detection support frame and the driving support frame are both two, the detection support frame and the driving support frame both comprise a connecting seat 1 and a connecting seat 2, the connecting seat 1 is rotatably connected to one end of a telescopic cylinder through a pin shaft, the other end of the telescopic cylinder is rotatably connected to a connecting arm through a connecting pin, the bottom end of the connecting arm in the detection support frame is rotatably connected to the pin shaft on the connecting seat 2, the bottom end of the connecting arm in the driving support frame is rotatably connected to the driving shaft, the driving shaft and the pin shaft of the connecting seat 2 are both equipped with lower support wheels, the top end of the connecting arm in the detection support frame is inserted with a pin shaft type pressure sensor, and the outer side of the pin shaft type pressure sensor and the top end of the connecting arm in the driving support frame are rotatably equipped with upper support wheels.

[0006] The beneficial effects of the utility model are as follows: the hollow belt shaft can be automatically compressed and locked by controlling the extension and retraction of the telescopic cylinder, thereby ensuring the stability of the detection process; after the hollow belt shaft is driven to rotate by the driving mechanism, the hollow belt shaft generates a force with the upper supporting wheel when rotating, and the imbalance and vibration level of the hollow belt shaft can be obtained by displaying the pressure value information of the pin shaft pressure sensor.

[0007] Lock the hollow belt shaft for stable clamping;

[0008] As a further improvement of the above technical solution: when the telescopic cylinder is extended to the end of the stroke, the horizontal distance between the upper support wheels on the detection support frame and the driving support frame is not greater than the diameter of the hollow belt shaft.

[0009] The beneficial effect of this improvement is that the upper support wheel can be moved to the top side of the hollow belt shaft under the drive of the extended telescopic cylinder, pressing the hollow belt shaft tightly against the lower support wheel, and cooperating with the lower support wheel to achieve four-point locking of the hollow belt shaft, effectively ensuring the stability of the rotation of the hollow belt shaft during the detection process.

[0010] For effective convenience, the connecting arm and the hollow belt shaft produce structural interference;

[0011] As a further improvement of the above technical solution: the connecting arm is an arc-shaped plate structure.

[0012] The beneficial effect of this improvement is that compared with a connecting arm with a straight plate structure, the arc plate structure can enable the connecting arm to effectively avoid the hollow belt shaft, thereby preventing the connecting arm from contacting the surface of the hollow belt shaft, thereby affecting the accuracy of detection.

[0013] In order to make the upper support wheel rotate smoothly on the outside of the pin-type pressure sensor;

[0014] As a further improvement of the above technical solution: a bushing structure is arranged between the pin-type pressure sensor and the upper support wheel.

[0015] The beneficial effect of this improvement is that, with the support of the bushing structure, the upper support wheel can maintain smooth low-speed rotation on the outer side of the pin-type pressure sensor.

[0016] In order to ensure the stability of the installation of the pin-type pressure sensor;

[0017] As a further improvement of the above technical solution: a through hole structure which is clearance-matched with the pin-type pressure sensor is opened on the connecting arm, and a C-shaped retaining spring is clamped on the pin-type pressure sensor on the outer side of the connecting arm.

[0018] The beneficial effect of this improvement is that the C-shaped retaining spring can stably install the pin-type pressure sensor on the connecting arm.

[0019] In order to obtain the dynamic balance information of the hollow belt shaft in real time and accurately;

[0020] As a further improvement of the above technical solution: the control host includes a display, a control switch, a single-chip microcomputer and a relay, and the control host is electrically connected to the servo motor and the pin-type pressure sensor.

[0021] The beneficial effect of this improvement is that the control host can receive and process the electrical signal of the pin-type pressure sensor and display it intuitively through the display.

[0022] In order to drive the hollow belt shaft to rotate stably;

[0023] As a further improvement of the above technical solution: the servo motor is installed on the base, and the servo motor is driven and connected to the drive shaft through a belt transmission mechanism.

[0024] The beneficial effect of this improvement is that the servo motor can drive the drive shaft to rotate stably through the belt transmission mechanism.

[0025] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a working schematic diagram of the utility model;

[0028] Figure 3 It is the front view of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the detection support frame in the utility model;

[0030] In the figure: 1. base; 2. detection support frame; 21. connecting seat 1; 22. connecting seat 2; 23. lower support wheel; 24. connecting arm; 25. telescopic cylinder; 26. upper support wheel; 27. pin-type pressure sensor; 28. connecting pin; 3. driving support frame; 4. driving mechanism; 41. driving shaft; 42. belt transmission mechanism; 43. servo motor; 5. control host. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0032] Embodiment 1:

[0033] like Figure 1—4 shows: a dynamic balancing test device for hollow belt shaft production, comprising a base 1, a driving mechanism 4 and a control host 5 are installed on the top surface of the base 1, the driving mechanism 4 comprises a driving shaft 41, a belt transmission mechanism 42 and a servo motor 43, a detection support frame 2 and a driving support frame 3 are arranged on the top surface of the base 1 on the left and right sides, the number of the detection support frame 2 and the driving support frame 3 are both two, the detection support frame 2 and the driving support frame 3 both comprise a connecting seat 1 21 and a connecting seat 22, the connecting seat 1 21 is rotatably connected to one end of a telescopic cylinder 25 through a pin shaft, and the other end of the telescopic cylinder 25 is rotatably connected to the connecting pin 28 The connecting arm 24, the bottom end of the connecting arm 24 in the detection support frame 2 is rotatably connected to the pin on the connecting seat 22, the bottom end of the connecting arm 24 in the driving support frame 3 is rotatably connected to the driving shaft 41, the driving shaft 41 and the pin of the connecting seat 22 are both installed with a lower support wheel 23, the top of the connecting arm 24 in the detection support frame 2 is inserted with a pin-type pressure sensor 27, the outer side of the pin-type pressure sensor 27 and the top of the connecting arm 24 in the driving support frame 3 are both rotatably installed with an upper support wheel 26, and the automatic compression and locking of the hollow belt shaft can be achieved by controlling the extension and contraction of the telescopic cylinder 25 to ensure the stability of the detection process;After the hollow belt shaft is driven to rotate by the driving mechanism 4, a force is generated on the upper support wheel 26 when the hollow belt shaft rotates, and the imbalance and vibration level of the hollow belt shaft can be obtained by displaying the pressure value information of the pin-type pressure sensor 27. When the telescopic cylinder 25 is extended to the end of the stroke, the horizontal distance between the upper support wheel 26 on the detection support frame 2 and the driving support frame 3 is not greater than the diameter of the hollow belt shaft. The upper support wheel 26 can be moved to the top side of the hollow belt shaft under the drive of the extended telescopic cylinder 25, and the hollow belt shaft is pressed tightly against the lower support wheel 23, and the four-point locking of the hollow belt shaft is achieved in cooperation with the lower support wheel 23, effectively ensuring the stability of the rotation of the hollow belt shaft during the detection process. The connecting arm 24 is an arc plate structure. Compared with the connecting arm 24 with a straight plate structure, the arc plate structure can effectively avoid the hollow belt shaft when the connecting arm 24 is connected, so as to avoid contact between the connecting arm 24 and the surface of the hollow belt shaft, thereby affecting the accuracy of the detection. A bushing structure is provided between the sensor 27 and the upper support wheel 26. With the support of the bushing structure, the upper support wheel 26 can maintain smooth low-speed rotation on the outside of the pin-type pressure sensor 27. A through-hole structure with clearance fit with the pin-type pressure sensor 27 is provided on the connecting arm 24. A C-type retaining spring is clamped on the pin-type pressure sensor 27 on the outside of the connecting arm 24. The C-type retaining spring can stably install the pin-type pressure sensor 27 on the connecting arm 24. The control host 5 includes a display, a control switch, a single-chip microcomputer and a relay. The control host 5 is electrically connected to the servo motor 43 and the pin-type pressure sensor 27. The control host 5 can receive and process the electrical signal of the pin-type pressure sensor 27 and display it intuitively through the display. The servo motor 43 is installed on the base 1. The servo motor 43 is driven to connect the drive shaft 41 through the belt transmission mechanism 42. The servo motor 43 can drive the drive shaft 41 to rotate stably through the belt transmission mechanism 42. ;

[0034] The working principle of the present technical solution is as follows: in the initial state, the telescopic cylinder 25 is extended to the minimum stroke, the operator places the hollow belt shaft horizontally on the lower support wheel 23, and then controls the telescopic cylinder 25 to extend, so that the telescopic cylinder 25 drives the connecting arm 24 through the connecting pin 28, so that the connecting arm 24 in the detection support frame 2 rotates with the pin shaft on the connecting seat 22, and the connecting arm 24 in the driving support frame 3 rotates with the driving shaft 41 as support, so that the upper support wheel 26 is pressed against the surface of the hollow belt shaft; the telescopic cylinders 25 in the detection support frame 2 and the driving support frame 3 keep synchronous extension and contraction, and when the pressure information fed back by the pin pressure sensor 27 When the set threshold is reached, the hollow belt shaft is locked by the upper support wheel 26 and the lower support wheel 23 with appropriate force; then the operator starts the servo motor 43, so that the servo motor 43 drives the drive shaft 41 to rotate through the belt transmission mechanism 42. When the drive shaft 41 rotates, it drives the lower support wheel 23 in the drive support frame 3 to rotate, and then drives the hollow belt shaft to rotate. The rotation speed can be controlled by adjusting the rotation speed of the servo motor 43; by displaying the change in the size and frequency of the pressure value of the pin-type pressure sensor 27, the imbalance and vibration level of the hollow belt shaft can be obtained, thereby realizing the dynamic balance detection of the hollow belt shaft.

[0035] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A dynamic balance test device for hollow belt shaft production, characterized in that: The invention comprises a base (1), a driving mechanism (4) and a control host (5) are installed on the top surface of the base (1), the driving mechanism (4) comprises a driving shaft (41), a belt transmission mechanism (42) and a servo motor (43), a detection support frame (2) and a driving support frame (3) are arranged on the top surface of the base (1) on the left and right sides, the number of the detection support frame (2) and the driving support frame (3) are both two, the detection support frame (2) and the driving support frame (3) both comprise a connecting seat 1 (21) and a connecting seat 2 (22), the connecting seat 1 (21) is rotatably connected to one end of a telescopic oil cylinder (25) through a pin shaft, and the other end of the telescopic oil cylinder (25) is connected to the connecting seat 1 (21) through a pin shaft. The connecting arm (24) is rotatably connected through a connecting pin (28), the bottom end of the connecting arm (24) in the detection support frame (2) is rotatably connected to the pin shaft on the second connecting seat (22), the bottom end of the connecting arm (24) in the driving support frame (3) is rotatably connected to the driving shaft (41), the driving shaft (41) and the pin shaft of the second connecting seat (22) are both equipped with a lower supporting wheel (23), the top end of the connecting arm (24) in the detection support frame (2) is inserted with a pin shaft type pressure sensor (27), and the outer side of the pin shaft type pressure sensor (27) and the top end of the connecting arm (24) in the driving support frame (3) are both rotatably equipped with an upper supporting wheel (26).

2. The dynamic balance test device for hollow belt shaft production according to claim 1, characterized in that: When the telescopic oil cylinder (25) is extended to the end of the stroke, the horizontal distance between the upper support wheel (26) on the detection support frame (2) and the driving support frame (3) is not greater than the diameter of the hollow belt shaft.

3. The dynamic balance test device for hollow belt shaft production according to claim 1, characterized in that: The connecting arm (24) is an arc-shaped plate structure.

4. The dynamic balance test device for hollow belt shaft production according to claim 1, characterized in that: A bushing structure is provided between the pin-type pressure sensor (27) and the upper supporting wheel (26).

5. The dynamic balance test device for hollow belt shaft production according to claim 1, characterized in that: The connecting arm (24) is provided with a through hole structure which is clearance-matched with the pin-type pressure sensor (27), and a C-shaped retaining spring is clamped on the pin-type pressure sensor (27) outside the connecting arm (24).

6. The dynamic balance test device for hollow belt shaft production according to claim 1, characterized in that: The control host (5) comprises a display, a control switch, a single chip microcomputer and a relay. The control host (5) is electrically connected to a servo motor (43) and a pin-type pressure sensor (27).

7. The dynamic balance test device for hollow belt shaft production according to claim 1, characterized in that: The servo motor (43) is mounted on the base (1), and the servo motor (43) is driven and connected to the drive shaft (41) through a belt transmission mechanism (42).

Images