General engine main shaft stability detection equipment

Abstract

The invention relates to the technical field of shaft dynamic balance detection, in particular to general engine main shaft stability detection equipment which comprises a detection table, an equipment plate arranged on the detection table, a guide groove formed in the equipment plate, a fixed belt wheel, a second movable belt wheel arranged on the two sides of the equipment plate, and a first movable belt wheel movably installed on the equipment plate and matched with the guide groove. The second movable belt wheel is in transmission connection with the first movable belt wheel, and the fixed belt wheel is connected with the second movable belt wheel through a belt. The driving assembly comprises a driving shaft and a rotating sleeve which are arranged on the detection table, a sliding block is slidably mounted on the equipment plate, a lead screw which is in meshed connection with the rotating sleeve and is in threaded connection with the sliding block is arranged on the detection table, a rotating rod is rotatably mounted in the rotating sleeve, and the rotating rod is in transmission connection with the fixed belt wheel; the driving gear is elastically installed on the driving shaft and can be connected with the rotating sleeve and the rotating rod in a meshed mode, and a shifting plate matched with the sliding block is rotationally installed on the driving gear. The system is good in convenience and high in intelligent degree.

Description

Technical Field

[0001] The invention relates to the technical field of shaft dynamic balance detection, and in particular to a general engine main shaft stability detection device. Background Art

[0002] The stability of the engine main shaft is one of the key factors to ensure the efficient and stable operation of the engine. Some of the existing dynamic balancing test devices use a belt to directly contact and drive the main shaft to be tested. After a test is completed, the main shaft is pulled out of this type of test device, and the belt of the main shaft support set loses support and collapses downward; most of the existing dynamic balancing test devices lack a mechanism that can lift and expand the collapsed belt, resulting in an extra person lifting and expanding the collapsed belt by hand when the roller is re-inserted into the belt sleeve for transmission. The operation is troublesome and inconvenient, and consumes a lot of manpower, which is not conducive to enterprises reducing labor costs.

[0003] China Patent Network has disclosed a publication number CN118706329A, titled "A dynamic balance test system for a two-roller machine." Through a belt holding mechanism, the collapsed belt can be kept in a raised and expanded open state. Compared with the existing technology, the operation is quicker and more convenient, which helps to reduce the consumption and use of manpower, and is beneficial for enterprises to reduce labor costs.

[0004] In the above-mentioned public documents, the collapsed belt is stretched out by driving two T-shaped expansion rods, and the belt is tensioned by cooperating with the driving pulley. After both operations, the plug shaft and L-shaped plug rod need to be operated to limit the position. The current operation process is cumbersome and requires multiple manual interventions and manual installation of limit parts to achieve positioning. This operation method is not only inefficient, but also has a low degree of intelligence and lacks convenience and automation. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a universal engine main shaft stability detection device, which can effectively solve the problems of low intelligence, lack of convenience and automation in the prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a general engine main shaft stability detection device, comprising: The testing platform is provided with an equipment plate, and the equipment plate is provided with a guide groove, and the two sides of the equipment plate are provided with a fixed pulley and a movable pulley 2, and a movable pulley 1 movably mounted on the equipment plate and matched with the guide groove, and the movable pulley 2 is transmission-connected with the movable pulley 1, and the fixed pulley and the movable pulley 2 are connected by a belt; A driving assembly, the driving assembly comprising a driving shaft arranged on the detection platform and a rotating sleeve rotatably arranged on the equipment plate, a slider for driving the movable pulley to move is slidably installed on the equipment plate, and a screw rod meshingly connected with the rotating sleeve and threadedly connected with the slider is provided on the detection platform, a rotating rod is rotatably installed in the rotating sleeve, and the rotating rod is connected to the fixed pulley through a transmission belt; A driving gear is elastically mounted on the driving shaft and can be meshed with the rotating sleeve and the rotating rod. A shifting plate that cooperates with the slider is rotatably mounted on the driving gear. When the slider approaches the driving shaft to the extreme position, the driving gear and the rotating sleeve are disengaged and meshed with the rotating rod.

[0007] Furthermore, the fixed pulleys are provided with four groups and are symmetrically distributed in pairs on both sides of the equipment plate, and the fixed pulleys are fixed to the equipment plate. The movable pulley 2 is slidably set on the equipment plate and is located below the fixed pulley. The movable pulley 2 can move horizontally on the equipment plate and move in the direction of approaching and moving away from the workpiece.

[0008] Furthermore, the guide groove is inclined, and one side of the guide groove close to the drive shaft is lower than the other side. The guide grooves are provided in multiple groups and are symmetrically distributed on the equipment plate along the drive assembly. The movable pulley is slidably connected to the equipment plate through a support rod, and the support rod is provided with a columnar member extending into the guide groove.

[0009] Furthermore, a pull rod is rotatably mounted on the movable pulley 2, a connecting rod is rotatably mounted on the equipment plate, and two ends of the connecting rod are rotatably connected to the pull rod and the support rod respectively.

[0010] Furthermore, the connecting rod consists of a fixed rod and a telescopic rod, the fixed rod is rotatably set on the equipment plate, and one end of the fixed rod away from the support rod is rotatably connected to the pull rod, the telescopic rod is rotatably set on the support rod, and the telescopic rod and the fixed rod are slidably connected.

[0011] Furthermore, the slider is slidably connected to the support rod, and a ball bearing for reducing friction is provided on a side of the slider close to the support rod.

[0012] Furthermore, a bevel gear is provided at one end of the rotating sleeve close to the driving shaft, and a bevel gear meshing with each other is correspondingly provided at one end of the screw rod close to the rotating sleeve, and a gear sleeve capable of meshing with the driving gear is provided on the rotating rod.

[0013] Furthermore, the driving gear is slidably mounted on the driving shaft via a limiting bar, and an elastic member connected to the limiting bar is provided on the driving shaft.

[0014] Furthermore, a knob is provided on the device plate, and a spring is provided between the knob and the device plate, and a lever for pushing the knob is provided at the bottom of the slider. Beneficial Effects

[0015] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: 1. By bringing the two groups of support rods closer to each other and cooperating with the guide grooves on the equipment plate, the movable pulley 1 is lowered when retracted, and the connecting rod arranged at the bottom of the support rod will toggle the pull rod, thereby pushing the movable pulley 2 to extend and tighten the belt, so that the belt is pressed against the workpiece for inspection. Conversely, when the two groups of support rods are away from each other, the guide grooves on the equipment plate are cooperated to make the movable pulley 1 rise when it is unfolded to support the belt, and at the same time, the connecting rod arranged at the bottom of the support rod will toggle the pull rod, thereby pulling the movable pulley 2 to retract, thereby preventing the belt from being overstretched. The structure is simple and the operation is convenient. Second, the limit strip is pulled by the elastic part, so that the driving gear is meshed with the rotating sleeve in the initial state. At this time, when the driving shaft rotates, it will cooperate with the lead screw to move the slider and the movable pulley one, so that the movable pulley one approaches and descends, and the belt contacts the workpiece, and the movable pulley two is pushed out to tension the belt. The sliders are brought close to each other to the preset value, and the lever is used to move the paddle to disengage the driving gear from the rotating sleeve and mesh with the gear sleeve. As the driving shaft continues to rotate, the driving gear is driven to cooperate with the transmission belt to drive the fixed pulley to rotate, and then cooperate with the belt to drive the workpiece to cooperate with the vibration sensor for detection. No human intervention is required, labor intensity is reduced, the degree of intelligence is high, and it is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention under the detection state; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3 It is a schematic diagram of the connection between the movable pulley 1 and the movable pulley 2 of the present invention; Figure 4 It is a partial cross-sectional schematic diagram of the drive assembly of the present invention; Figure 5 For the present invention Figure 4 The enlarged view of point B in the middle; Figure 6 For the present invention Figure 2 The enlarged view of point A in the middle; Figure 7 It is a schematic diagram of the overall structure of the present invention when the main shaft is disassembled; Figure 8 This is a state change diagram of the knob of the present invention.

[0018] 1. Test table; 11. Equipment plate; 111. Guide groove; 112. Knob; 12. Fixed pulley; 13. Movable pulley 1; 131. Support rod; 14. Movable pulley 2; 141. Pull rod; 142. Connecting rod; 1421. Fixed rod; 1422. Telescopic rod; 15. Belt; 2. Driving assembly; 21. Driving shaft; 211. Limiting strip; 212. Elastic member; 22. Driving gear; 221. Dial plate; 23. Rotating sleeve; 24. Rotating rod; 241. Gear sleeve; 25. Transmission belt; 26. Slider; 261. Dial rod; 27. Screw rod; 3. Vibration sensor. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] A universal engine main shaft stability detection device, refer to the attached Figure 1-8 ,include: The testing platform 1 has brackets on both sides of the testing platform 1, and a turntable for supporting the workpiece is provided on the brackets. The testing platform 1 has an equipment plate 11, which is located at the center of the testing platform 1 and is symmetrically provided with a guide groove 111. The guide groove 111 is inclined, and the side of the guide groove 111 close to the driving shaft 21 is lower than the other side. The guide groove 111 has multiple groups and is symmetrically distributed on the equipment plate 11 along the driving component 2. The equipment plate 11 has fixed pulleys 12 and movable pulleys 14 on both sides, as well as a movable pulley 14 installed on the equipment plate 11. The movable pulley 13 on the equipment plate 11 and matched with the guide groove 111 is slidably connected to the equipment plate 11 through the support rod 131, and the support rod 131 is provided with a columnar member extending into the guide groove 111. When the two groups of support rods 131 are away from each other, they will rise under the guidance of the guide groove 111, thereby supporting the belt 15. When the two groups of support rods 131 are close to each other, they will fall under the guidance of the guide groove 111, thereby retracting the belt 15 to press against the workpiece, and the movable pulley 2 14 and the movable pulley The first 13 is connected to the transmission, the fixed pulley 12 and the movable pulley 14 are connected by a belt 15, the fixed pulley 12 is provided with four groups and symmetrically distributed on both sides of the equipment plate 11, and the fixed pulley 12 and the equipment plate 11 are fixedly arranged, and the movable pulley 14 is slidably arranged on the equipment plate 11 and is located below the fixed pulley 12, and the movable pulley 14 can move horizontally on the equipment plate 11 and move in the direction of approaching and moving away from the workpiece, wherein a pull rod 141 is rotatably installed on the movable pulley 14, and a pull rod 141 is rotatably installed on the equipment plate 11 A connecting rod 142 is installed, and both ends of the connecting rod 142 are rotatably connected to the pull rod 141 and the support rod 131 respectively. In addition, the connecting rod 142 consists of a fixed rod 1421 and a telescopic rod 1422. The fixed rod 1421 is rotatably set on the equipment plate 11, and the end of the fixed rod 1421 away from the support rod 131 is rotatably connected to the pull rod 141, the telescopic rod 1422 is rotatably set on the support rod 131, and the telescopic rod 1422 and the fixed rod 1421 are slidably connected, which can prevent interference when the connecting rod 142 rotates.

[0022] In the above technical solution, the two groups of support rods 131 are brought closer to each other and cooperate with the guide groove 111 on the equipment plate 11, so that the movable pulley 13 drops when retracting. At the same time, the connecting rod 142 arranged at the bottom of the support rod 131 will push the pull rod 141, thereby pushing the movable pulley 14 to extend out to tighten the belt 15, so that the belt 15 is pressed against the workpiece for detection. Conversely, when the two groups of support rods 131 are away from each other, in cooperation with the guide groove 111 on the equipment plate 11, the movable pulley 13 rises when it is unfolded to support the belt 15, and the connecting rod 142 arranged at the bottom of the support rod 131 will push the pull rod 141, thereby pulling the movable pulley 14 to retract, to prevent the belt 15 from being over-stretched.

[0023] The driving assembly 2 for tensioning and driving the belt 15 comprises a driving shaft 21 arranged on the detection platform 1 and a rotating sleeve 23 rotatably arranged on the equipment plate 11. The rotating sleeve 23 is driven to rotate by the driving shaft 21. A slider 26 for driving the movable pulley 13 to move is slidably installed on the equipment plate 11. The slider 26 is slidably connected to the support rod 131, and a ball bearing for reducing friction is provided on the side of the slider 26 close to the support rod 131. A screw rod 27 meshingly connected with the rotating sleeve 23 and threadedly connected with the slider 26 is provided on the detection platform 1. A bevel gear is provided at one end of the rotating sleeve 23 close to the driving shaft 21, and a corresponding gear is provided at one end of the screw rod 27 close to the rotating sleeve 23. The bevel gears meshing with each other drive the two sets of screws 27 to rotate when the rotating sleeve 23 rotates, thereby driving the slider 26 and the support rod 131 to move, and finally adjusting the displacement and lifting of the movable pulley 13 to achieve the support and tensioning of the belt 15; a rotating rod 24 is rotatably installed in the rotating sleeve 23, and the rotating rod 24 is connected to the fixed pulley 12 through a transmission belt 25. When the driving shaft 21 is meshed with the rotating rod 24, the transmission belt 25 is driven to drive the fixed pulley 12 to rotate, and then cooperate with the belt 15 to drive the workpiece to rotate to achieve detection. A driving gear 22 elastically installed on the driving shaft 21 and capable of meshing with the rotating sleeve 23 and the rotating rod 24 is provided on the rotating rod 24. A gear sleeve 241 that can be meshed with the driving gear 22 is rotatably mounted on the driving gear 22, and a dial plate 221 that cooperates with the slider 26 is rotatably mounted. The driving gear 22 is driven to move by toggling the dial plate 221, so that the driving gear 22 is respectively meshed with the rotating sleeve 23 and the rotating rod 24. When the slider 26 approaches the driving shaft 21 to the extreme position, the driving gear 22 and the rotating sleeve 23 are disengaged and meshed with the rotating rod 24. The driving gear 22 is slidably mounted on the driving shaft 21 through a limit bar 211, and an elastic member 212 connected to the limit bar 211 is provided on the driving shaft 21. When the driving shaft 21 rotates, the limit bar 211 is cooperated to drive the driving gear 22 Rotate, and the driving gear 22 can slide on the driving shaft 21. By setting the elastic member 212, in the initial state, the limit bar 211 is pulled back to engage the driving gear 22 with the inner wall of the rotating sleeve 23. In addition, a knob 112 is provided on the equipment plate 11, and a spring is provided between the knob 112 and the equipment plate 11. A lever 261 for pushing the knob 112 is provided at the bottom of the slider 26. When the slider 26 moves to the extreme position close to the driving shaft 21, the lever 261 moves the knob 112. When the knob 112 is rotated to a preset value, the spring drives the knob 112 to rotate quickly to move the dial plate 221 to make the driving gear 22 engage with the gear sleeve 241.

[0024] In the above technical solution, the driving gear 22 is driven by the driving shaft 21. In the initial state of the elastic member 212, the limit strip 211 is pulled to make the driving gear 22 mesh with the rotating sleeve 23. At this time, when the driving shaft 21 rotates, it will cooperate with the screw rod 27 to move the slider 26 and the movable pulley 13, so that the movable pulley 13 approaches and descends, and the belt 15 contacts the workpiece. At this time, the movable pulley 214 is pushed out to tighten the belt 15. After that, when the sliders 26 approach each other to a preset value, the lever 261 is used to push the lever plate 221 to disengage the driving gear 22 from the rotating sleeve 23, and at the same time mesh with the gear sleeve 241. As the driving shaft 21 continues to rotate, the driving gear 22 is driven to cooperate with the transmission belt 25 to drive the fixed pulley 12 to rotate, and then cooperate with the belt 15 to drive the workpiece to cooperate with the vibration sensor 3 for detection.

[0025] Working principle: During inspection, the workpiece is placed on the inspection table 1, and then the driving gear 22 is driven by the driving shaft 21. In the initial state of the elastic member 212, the limit bar 211 is pulled to make the driving gear 22 mesh with the rotating sleeve 23. At this time, when the driving shaft 21 rotates, it will cooperate with the screw rod 27 to move the slider 26 and the movable pulley 13, so that the movable pulley 13 approaches and descends, and the belt 15 contacts the workpiece. At this time, the two groups of support rods 131 are close to each other, and the guide groove 111 on the equipment plate 11 is cooperated to make the movable pulley 13 descend when it is retracted. At the same time, the connecting rod 142 set at the bottom of the support rod 131 will toggle the pull rod 141, thereby pushing the movable pulley 2 14 out to tighten the belt 15, so that the belt 15 is against the workpiece. Later, when the sliders 26 approach each other to a preset value, the lever 261 moves the lever plate 221 to disengage the driving gear 22 from the rotating sleeve 23 and engage with the gear sleeve 241. As the driving shaft 21 continues to rotate, the driving gear 22 cooperates with the transmission belt 25 to drive the fixed pulley 12 to rotate, and then cooperates with the belt 15 to drive the workpiece to cooperate with the vibration sensor 3 for detection. On the contrary, when the two sets of support rods 131 move away from each other, the guide groove 111 on the equipment plate 11 cooperates with the active pulley 13 to rise when it is unfolded to support the belt 15 located above the workpiece. At the same time, the connecting rod 142 arranged at the bottom of the support rod 131 will move the pull rod 141, thereby pulling the active pulley 2 14 back to prevent the belt 15 from being over-stretched. At this time, the workpiece that has been inspected can be directly taken out.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A general engine main shaft stability detection device, characterized in that: include: A testing platform (1), wherein the testing platform (1) is provided with a device plate (11), and the device plate (11) is provided with a guide groove (111), a fixed belt pulley (12) and a movable belt pulley (14) are provided on both sides of the device plate (11), and a movable belt pulley (13) is movably mounted on the device plate (11) and matched with the guide groove (111), and the movable belt pulley (14) is connected to the movable belt pulley (13) in a transmission manner, and the fixed belt pulley (12) and the movable belt pulley (14) are connected via a belt (15); A drive assembly (2), the drive assembly (2) comprising a drive shaft (21) arranged on the detection platform (1) and a rotating sleeve (23) rotatably arranged on the equipment plate (11), a slider (26) for driving a movable pulley (13) to move being slidably mounted on the equipment plate (11), and a screw rod (27) meshingly connected with the rotating sleeve (23) and threadedly connected with the slider (26) being provided on the detection platform (1), a rotating rod (24) rotatably mounted in the rotating sleeve (23), and the rotating rod (24) is connected to the fixed pulley (12) through a transmission belt (25); and a driving gear (22) elastically mounted on the driving shaft (21) and capable of being meshed with the rotating sleeve (23) and the rotating rod (24); and a shifting plate (221) which cooperates with the slider (26) is rotatably mounted on the driving gear (22); when the slider (26) approaches the driving shaft (21) to an extreme position, the driving gear (22) and the rotating sleeve (23) are shifted to be disengaged and meshed with the rotating rod (24).

2. A universal engine main shaft stability detection device according to claim 1, characterized in that: The fixed belt pulleys (12) are provided with four groups and are symmetrically distributed in pairs on both sides of the equipment plate (11), and the fixed belt pulleys (12) and the equipment plate (11) are fixedly arranged, and the movable belt pulley (14) is slidably arranged on the equipment plate (11) and is located below the fixed belt pulley (12), and the movable belt pulley (14) can move horizontally on the equipment plate (11) and move in a direction close to the workpiece and away from the workpiece.

3. A universal engine main shaft stability detection device according to claim 1, characterized in that: The guide groove (111) is arranged obliquely, and one side of the guide groove (111) close to the drive shaft (21) is lower than the other side. The guide groove (111) is provided with a plurality of groups and is symmetrically distributed on the device plate (11) along the drive assembly (2). The movable pulley (13) is slidably connected to the device plate (11) via a support rod (131), and a columnar member extending into the guide groove (111) is provided on the support rod (131).

4. A universal engine main shaft stability detection device according to claim 1, characterized in that: A pull rod (141) is rotatably mounted on the second movable pulley (14), a connecting rod (142) is rotatably mounted on the equipment plate (11), and two ends of the connecting rod (142) are rotatably connected to the pull rod (141) and the support rod (131) respectively.

5. A universal engine main shaft stability detection device according to claim 4, characterized in that: The connecting rod (142) is composed of a fixed rod (1421) and a telescopic rod (1422); the fixed rod (1421) is rotatably arranged on the equipment plate (11), and one end of the fixed rod (1421) away from the support rod (131) is rotatably connected to the pull rod (141); the telescopic rod (1422) is rotatably arranged on the support rod (131), and the telescopic rod (1422) and the fixed rod (1421) are slidably connected.

6. A universal engine main shaft stability detection device according to claim 3, characterized in that: The slider (26) is slidably connected to the support rod (131), and a ball bearing for reducing friction is provided on a side of the slider (26) close to the support rod (131).

7. A universal engine main shaft stability detection device according to claim 1, characterized in that: The rotating sleeve (23) is provided with a bevel gear at one end close to the driving shaft (21), the screw rod (27) is provided with a corresponding bevel gear meshing with each other at one end close to the rotating sleeve (23), and the rotating rod (24) is provided with a gear sleeve (241) capable of meshing with the driving gear (22).

8. A universal engine main shaft stability detection device according to claim 1, characterized in that: The driving gear (22) is slidably mounted on the driving shaft (21) via a limiting strip (211), and an elastic member (212) connected to the limiting strip (211) is provided on the driving shaft (21).

9. A universal engine main shaft stability detection device according to claim 1, characterized in that: A knob (112) is provided on the device plate (11), a spring is provided between the knob (112) and the device plate (11), and a lever (261) for pushing the knob (112) is provided at the bottom of the slider (26).

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