Detection device and method for preventing reverse installation of eccentric shaft

Abstract

The invention belongs to the technical field of installation position detection, and discloses an eccentric shaft reverse installation prevention detection device and method.The device comprises a base, a first detection assembly and a second detection assembly, the first detection assembly comprises a first detection rod, a first induction piece and a first signal lamp, the first detection rod is provided with a detection head, and a detection groove is formed in the lower end of the detection head; the width of the detection groove is larger than the diameter of the shaft part and smaller than the minimum diameter of the eccentric cam part, the first induction piece can control the first signal lamp to be turned on when the first detection rod moves to the target position relative to the base, the second detection assembly comprises a second detection rod, a second induction piece and a second signal lamp, and the second detection rod is provided with an abutting plate. The second induction piece is suitable for controlling the second signal lamp to be turned on when the second detection rod moves to the target position relative to the base. According to the method, the device is applied, the reverse installation condition of the eccentric shaft can be found in time, and the situation that the eccentric shaft is conveyed into centerless grinding equipment in a reverse installation state and consequently the equipment is impacted is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of installation position detection, and in particular to an eccentric shaft anti-reverse installation detection device and method. Background Art

[0002] The eccentric shaft centerless grinding technology is a high-precision processing technology. It can grind the contour of the eccentric shaft through the precise control of the eccentric shaft centerless grinding without changing the straight line deviation of the eccentric shaft, thereby achieving the effect of getting rid of the original contour deviation of the eccentric shaft.

[0003] In the prior art, the eccentric shaft is placed on the feeding channel on one side of the centerless grinding equipment, and the eccentric shaft is transported into the centerless grinding equipment through the feeding channel for processing. However, in the actual operation process, the eccentric shaft may be installed upside down due to the operator's observation and inadequate operation. If the eccentric shaft is transported into the centerless grinding equipment in an upside-down posture, the equipment will crash, causing the screw, slider, load-bearing thrust bearing, grinding wheel spindle, guide wheel shaft and other components in the equipment to be impacted. After the collision, the accuracy of the equipment will be seriously damaged, affecting subsequent machining, and the damaged parts need to be repaired at an additional cost. In addition, when the collision occurs, the high-speed rotating parts are easy to fly out of the equipment, damaging objects or injuring people around, which also poses a safety risk. Summary of the invention

[0004] The purpose of the present invention is to provide an eccentric shaft anti-reverse installation detection device and method, which can perform anti-reverse installation detection during the eccentric shaft feeding process, timely discover the reverse installation of the eccentric shaft, and avoid the eccentric shaft being sent into the centerless grinding equipment in a reversed state and causing the equipment to collide.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] An eccentric shaft reverse installation detection device is used to prevent the eccentric shaft from being reversed, the eccentric shaft comprises a shaft portion and an eccentric cam portion, and the anti-reverse installation detection device comprises:

[0007] Pedestal;

[0008] The first detection assembly comprises a first detection rod, a first sensing element and a first signal light, wherein the first detection rod is movably arranged on the base, the first detection rod is provided with a detection head, a detection groove is provided at the lower end of the detection head, the groove width of the detection groove is larger than the diameter of the shaft portion and smaller than the minimum diameter of the eccentric cam portion, the first sensing element is arranged on the base and is communicatively connected with the first signal light; the first sensing element is suitable for controlling the first signal light to light up when the first detection rod moves to a target position relative to the base;

[0009] The second detection component includes a second detection rod, a second sensor and a second signal light. The second detection rod is movably arranged on the base. The second detection rod is provided with an abutment plate. The abutment plate and the detection head are located on the same side of the base. The second sensor is arranged on the base and is communicatively connected with the second signal light. The second sensor is suitable for controlling the lighting of the second signal light when the second detection rod moves to a target position relative to the base.

[0010] Preferably, the first sensing member includes a first sensor and a first trigger head, wherein the first sensor is fixed on the base and is in communication connection with the first signal light, and the first trigger head is fixed on the first detection rod and is in communication connection with the first sensor; the first trigger head is suitable for triggering the first sensor when the first detection rod moves to a target position relative to the base, so that the first sensor controls the first signal light to light up;

[0011] The second sensing member includes a second sensor and a second trigger head, the second sensor is fixed on the base and is communicatively connected to the second signal light, the second trigger head is fixed on the second detection rod and is communicatively connected to the second sensor; the second trigger head is suitable for triggering the second sensor when the second detection rod moves to a target position relative to the base, so that the second sensor controls the second signal light to light up.

[0012] Preferably, a first linear bearing is fixedly provided on the base along the vertical direction, and the first detection rod is slidably disposed through the first linear bearing.

[0013] Preferably, a first limit head is provided on the first detection rod between the first linear bearing and the first trigger head, and the first limit head is suitable for abutting against the first linear bearing when the first detection rod descends to a limit position relative to the base.

[0014] Preferably, a first return spring is connected between the detection head and the first linear bearing.

[0015] Preferably, a second linear bearing is fixedly provided on the base along the vertical direction, and the second detection rod is slidably disposed in the second linear bearing.

[0016] Preferably, a second limit head is provided on the second detection rod between the second linear bearing and the second trigger head, and the second limit head is adapted to abut against the second linear bearing when the second detection rod descends to a limit position relative to the base;

[0017] A third limit head is arranged on the second detection rod between the second linear bearing and the abutment plate, and the third limit head is suitable for abutting against the second linear bearing when the second detection rod rises to a limit position relative to the base.

[0018] Preferably, a second return spring is connected between the third limiting head and the second linear bearing.

[0019] Preferably, a first bracket and a second bracket are fixedly disposed on the base, the first sensor is fixed on the first bracket, and the second sensor is fixed on the second bracket.

[0020] A method for detecting an eccentric shaft against reverse installation is provided, using any one of the above-mentioned eccentric shaft against reverse installation detection devices, and the method for detecting an eccentric shaft against reverse installation comprises the following steps:

[0021] S100, placing the eccentric shaft on the same side of the detection head and the abutment plate, with the axial direction of the eccentric shaft being parallel to the base;

[0022] S200, moving the eccentric shaft toward the direction close to the base without changing the parallel relationship between the eccentric shaft axis and the base, one end of the eccentric shaft pushes against the first detection rod to move, and the other end of the eccentric shaft pushes against the second detection rod to move;

[0023] S300, when the eccentric shaft pushes the second detection rod to move to the target position, so that the second sensing element controls the second signal light to light up, determining whether the first signal light is on;

[0024] If yes, the eccentric shaft is not installed upside down;

[0025] If not, the eccentric shaft is installed upside down.

[0026] Beneficial effects:

[0027] The eccentric shaft anti-reverse installation detection device provided by the present invention can perform anti-reverse installation detection during the eccentric shaft feeding process. Specifically, firstly, the eccentric shaft is placed on the same side of the detection head and the abutment plate, so that the eccentric shaft axis is parallel to the base, and then the eccentric shaft is moved in the direction close to the base without changing the parallel relationship between the eccentric shaft axis and the base. One end of the eccentric shaft pushes against the first detection rod to move, and the other end pushes against the second detection rod to move. When the eccentric shaft pushes against the first detection rod to move to the target position so that the second sensing member controls the second signal light to light up, it is determined whether the first signal light is on. If the first signal light is on, that is, the first signal light and the second signal light are on at the same time, the eccentric shaft is not installed in reverse; if the first signal light is not on, the eccentric shaft is installed in reverse. The device can detect the reverse installation of the eccentric shaft in time, and avoid the situation where the eccentric shaft is sent into the centerless grinding equipment in a reversed state and causes the equipment to collide. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the eccentric shaft anti-reverse installation detection device provided by the present invention;

[0029] Figure 2 It is a partial structural schematic diagram of the eccentric shaft anti-reverse installation detection device provided by the present invention;

[0030] Figure 3 It is a structural schematic diagram of the eccentric shaft anti-reverse installation detection device of the present invention when detecting that the eccentric shaft is not reversely installed;

[0031] Figure 4 It is a partial structural schematic diagram of the eccentric shaft anti-reverse installation detection device of the present invention when detecting that the eccentric shaft is not reversely installed;

[0032] Figure 5 It is a structural schematic diagram of the eccentric shaft anti-reverse installation detection device of the present invention when detecting the eccentric shaft being reversely installed;

[0033] Figure 6 It is a partial structural schematic diagram of the eccentric shaft reverse installation detection device of the present invention when detecting the reverse installation of the eccentric shaft;

[0034] Figure 7 It is a schematic flow chart of the method for preventing the eccentric shaft from being reversely installed according to the present invention.

[0035] In the figure:

[0036] 1. base; 11. first linear bearing; 12. second linear bearing; 13. first return spring; 14. second return spring; 151. first bracket; 152. second bracket;

[0037] 2. First detection assembly; 21. First detection rod; 211. Detection head; 212. Detection slot; 213. First limit head; 22. First sensing element; 221. First sensor; 222. First trigger head; 23. First signal light;

[0038] 3. Second detection assembly; 31. Second detection rod; 311. Abutment plate; 312. Second limit head; 313. Third limit head; 32. Second sensing element; 321. Second sensor; 322. Second trigger head; 33. Second signal light;

[0039] 4. eccentric shaft; 41. shaft portion; 42. eccentric cam portion. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] Reference Figures 1 to 6As shown, the present embodiment provides an eccentric shaft anti-reverse installation detection device. The device is used to prevent the eccentric shaft 4 from being reversed. The eccentric shaft 4 includes a shaft portion 41 and an eccentric cam portion 42 eccentrically arranged on the shaft portion 41. The anti-reverse installation detection device includes a base 1, a first detection component 2 and a second detection component 3. The first detection component 2 includes a first detection rod 21, a first sensing member 22 and a first signal light 23. The first detection rod 21 is movably arranged on the base 1. The first detection rod 21 is provided with a detection head 211. A detection groove 212 is provided at the lower end of the detection head 211. The groove width of the detection groove 212 is greater than the diameter of the shaft portion 41 and smaller than the minimum diameter of the eccentric cam portion 42. The first sensing member 22 is arranged on the base 1 and is communicatively connected to the first signal light 23. The first sensing member 22 is suitable for detecting the first detection rod 211 at the first detection rod 211. When the detection rod 21 moves to the target position relative to the base 1, the first signal light 23 is controlled to light up; the second detection component 3 includes a second detection rod 31, a second sensor 32 and a second signal light 33. The second detection rod 31 is movably arranged on the base 1. The second detection rod 31 is provided with an abutment plate 311. The abutment plate 311 and the detection head 211 are located on the same side of the base 1. The second sensor 32 is arranged on the base 1 and is communicatively connected with the second signal light 33; the second sensor 32 is suitable for controlling the second signal light 33 to light up when the second detection rod 31 moves to the target position relative to the base 1.

[0045] Corresponding to the device, this embodiment also provides an eccentric shaft anti-reverse installation detection method. The beneficial effects of the eccentric shaft anti-reverse installation detection device are described below in conjunction with the method.

[0046] Reference Figure 7 , and combined with Figures 1 to 6 , the method mainly comprises the following steps:

[0047] S100, placing the eccentric shaft 4 on the same side of the detection head 211 and the abutment plate 311, with the axial direction of the eccentric shaft 4 parallel to the base 1;

[0048] S200, the eccentric shaft 4 is moved toward the direction close to the base 1, without changing the parallel relationship between the eccentric shaft 4 and the base 1, one end of the eccentric shaft 4 pushes against the first detection rod 21 to move, and the other end of the eccentric shaft 4 pushes against the second detection rod 31 to move;

[0049] S300, when the eccentric shaft 4 pushes the second detection rod 31 to move to the target position, so that the first sensing element 22 controls the second signal light 33 to light up, it is determined whether the first signal light 23 is on;

[0050] If yes, the eccentric shaft 4 is not installed upside down;

[0051] If not, the eccentric shaft 4 is installed upside down.

[0052] In step S100, the base 1 can be fixed above the feeding channel on one side of the centerless grinding equipment in advance, and the eccentric shaft 4 can be placed on the feeding channel. To ensure that the detection result is reliable and effective, it is necessary to ensure that the shaft 41 is axially parallel to the base 1.

[0053] Specifically, in this embodiment, based on the upper and lower relationship in the attached figure, the detection head 211 and the abutment plate 311 are both located below the base 1. The first sensing member 22 and the second sensing member 32 are both located above the base 1. The two ends of the eccentric shaft 4 placed on the feeding channel correspond to the detection head 211 and the abutment plate 311 respectively. Specifically, when the subsequent eccentric shaft 4 rises, the two ends of the eccentric shaft 4 can contact the detection head 211 and the abutment plate 311 respectively.

[0054] Specifically, a first linear bearing 11 is fixedly arranged on the base 1 in the vertical direction, and the first detection rod 21 is slidably arranged in the first linear bearing 11. The arrangement of the first linear bearing 11 enables the first detection rod 21 to be movable and raised and lowered on the base 1 in the vertical direction. In this embodiment, one end of the first detection rod 21 is located above the base 1, and the other end is located below the base 1, and the detection head 211 is connected to the end of the first detection rod 21 below the base 1. Specifically, the first sensing member 22 includes a first sensor 221 and a first trigger head 222, the first sensor 221 is fixed on the base 1 and is connected to the first signal light 23, and the first trigger head 222 is fixed on the first detection rod 21 and is connected to the first sensor 221 in communication; the first trigger head 222 is suitable for triggering the first sensor 221 when the first detection rod 21 moves to the target position relative to the base 1, so that the first sensor 221 controls the first signal light 23 to light up. The first trigger head 222 is connected to the end of the first detection rod 21 above the base 1.

[0055] A second linear bearing 12 is fixedly arranged on the base 1 in the vertical direction, and the second detection rod 31 is slidably arranged in the second linear bearing 12. The arrangement of the second linear bearing 12 enables the second detection rod 31 to be movable and lifted on the base 1 in the vertical direction. In this embodiment, one end of the second detection rod 31 is located above the base 1, and the other end is located below the base 1, and the abutment plate 311 is connected to the end of the second detection rod 31 below the base 1. The second sensing member 32 includes a second sensor 321 and a second trigger head 322, the second sensor 321 is fixed on the base 1 and is connected to the second signal light 33, and the second trigger head 322 is fixed on the second detection rod 31 and is connected to the second sensor 321; the second trigger head 322 is suitable for triggering the second sensor 321 when the second detection rod 31 moves to the target position relative to the base 1, so that the second sensor 321 controls the second signal light 33 to light up. The second trigger head 322 is connected to the end of the second detection rod 31 above the base 1.

[0056] A first bracket 151 and a second bracket 152 are fixedly disposed on the base 1 . The first sensor 221 is fixed on the first bracket 151 , and the second sensor 321 is fixed on the second bracket 152 .

[0057] In step S200, the feeding channel on one side of the centerless grinding equipment rises, so that the eccentric shaft 4 placed on the feeding channel rises together, thereby gradually reducing the distance between the eccentric shaft 4 and the base 1. During the process, one end of the eccentric shaft 4 pushes the first detection rod 21 to move upward, so that the top of the first detection rod 21 extends out of the base 1, and the other end of the eccentric shaft 4 pushes the second detection rod 31 to move upward, so that the top of the second detection rod 31 extends out of the base 1.

[0058] Specifically, a first limit head 213 is provided on the first detection rod 21 between the first linear bearing 11 and the first trigger head 222, and the first limit head 213 is suitable for contacting the first linear bearing 11 when the first detection rod 21 drops to the limit position relative to the base 1. The setting of the first limit head 213 can prevent the upper end of the first detection rod 21 from being disengaged from the first linear bearing 11. It is worth mentioning that the detection head 211 provided below the first detection rod 21 can also play a limiting role to prevent the lower end of the first detection rod 21 from being disengaged from the first linear bearing 11.

[0059] Specifically, a second limit head 312 is provided on the second detection rod 31 between the second linear bearing 12 and the second trigger head 322, and the second limit head 312 is suitable for abutting against the second linear bearing 12 when the second detection rod 31 drops to the limit position relative to the base 1. The setting of the second limit head 312 can prevent the upper end of the second detection rod 31 from being disengaged from the second linear bearing 12. A third limit head 313 is provided on the second detection rod 31 between the second linear bearing 12 and the abutment plate 311, and the third limit head 313 is suitable for abutting against the second linear bearing 12 when the second detection rod 31 rises to the limit position relative to the base 1. The setting of the third limit head 313 can prevent the lower end of the second detection rod 31 from being disengaged from the second linear bearing 12.

[0060] In step S300, the eccentric shaft 4 is detected in two situations: not installed upside down and installed upside down.

[0061] Figure 3 to Figure 4The figure shows the case where the eccentric shaft 4 is not installed upside down. When the eccentric shaft 4 is not installed upside down, the shaft portion of the eccentric shaft 4 corresponds to the abutment plate 311, and the eccentric cam portion 42 of the eccentric shaft 4 corresponds to the detection head 211. Specifically, when the eccentric shaft 4 is rising, the eccentric cam portion 42 at one end of the eccentric shaft 4 gradually approaches the detection head 211. Since the groove width of the detection groove 212 is larger than the diameter of the shaft portion 41 and smaller than the minimum diameter of the eccentric cam portion 42, when the eccentric cam portion 42 rises to the notch position of the detection groove 212, it will push against the edge of the detection groove 212, so that the detection head 211 drives the first detection rod 21 to continue to move upward, so that the first trigger head 222 located at the upper end of the first detection rod 21 rises and gradually approaches the detection area of ​​the first sensor 221. During this process, the shaft portion 41 at the other end of the eccentric shaft 4 contacts the abutment plate 311, and the shaft portion 41 rises and pushes the abutment plate 311, so that the abutment plate 311 drives the second detection rod 31 to continue to move upward, thereby causing the second trigger head 322 located at the upper end of the second detection rod 31 to rise and gradually approach the detection area of ​​the second sensor 321.

[0062] Specifically, when the eccentric shaft 4 pushes against the second detection rod 31 and moves to the target position, the second trigger head 322 rises and moves to a position corresponding to the detection area of ​​the second sensor 321, so that the second sensor 321 detects the second trigger head 322, thereby controlling the second signal light 33 to light up through the communication function of the control module. At this time, it can only indicate that the eccentric shaft 4 is placed on the feeding channel, but the detection structure of the first sensor 22 is still needed to determine whether the eccentric shaft 4 is installed upside down.

[0063] When the second signal lamp 33 is on, if the eccentric shaft 4 is Figure 3 to Figure 4 The eccentric cam 41 pushes against the edge of the detection slot 212 so that the detection head 211 drives the first detection rod 21 to move upward to a position corresponding to the detection area of ​​the first trigger head 222 and the first sensor 221, so that the first sensor 221 detects the first trigger head 222, thereby controlling the first signal light 23 to light up through the communication function of the control module. That is, the first signal light 23 and the second signal light 33 light up at the same time, indicating that the eccentric shaft 4 is not reversely installed.

[0064] Figures 5 and 6The figure shows the situation where the eccentric shaft 4 is installed upside down. When the eccentric shaft 4 is installed upside down, the shaft portion 41 of the eccentric shaft 4 corresponds to the detection head 211, and the eccentric cam portion 42 of the eccentric shaft 4 corresponds to the abutment plate 311. Specifically, when the eccentric shaft 4 is rising, the shaft portion 41 at one end of the eccentric shaft 4 gradually approaches the detection head 211. Since the groove width of the detection groove 212 is larger than the diameter of the shaft portion 41 and smaller than the minimum diameter of the eccentric cam portion 42, when the shaft portion 41 rises to the notch position of the detection groove 212, it will enter the detection groove 212, and will not push against the detection head 211 at this time, that is, the first detection rod 21 does not move upward at this time. During this process, the eccentric cam portion 42 at the other end of the eccentric shaft 4 contacts the abutment plate 311, and the eccentric cam portion 42 rises and pushes the abutment plate 311, so that the abutment plate 311 drives the second detection rod 31 to continue to move upward, thereby causing the second trigger head 322 located at the upper end of the second detection rod 31 to rise and gradually approach the detection area of ​​the second sensor 321.

[0065] Specifically, when the eccentric shaft 4 is installed upside down, before the second detection rod 31 moves upward to the target position, according to the depth setting of the detection groove 212, the shaft portion 41 of the eccentric shaft 4 may not always contact the bottom of the detection groove 212, or may contact the bottom of the detection groove 212 and push the first detection rod 21 to move upward for a distance. However, it is understandable that after the eccentric shaft 4 is installed upside down, compared with the aforementioned situation where the eccentric shaft 4 is installed upright, the first detection rod 21 will always move upward later than the second detection rod 31. This means that compared with the aforementioned situation where the eccentric shaft 4 is installed upright, when the second trigger head 322 rises and triggers the second sensor 321 to control the second signal light 33 to light up, the first trigger head 222 has not yet risen to a height that can trigger the first sensor 221 to control the first signal light 23 to light up, that is, the second signal light 33 lights up, and the first signal light 23 does not light up, indicating that the eccentric shaft 4 is installed upside down.

[0066] Furthermore, a first reset spring 13 is connected between the detection head 211 and the first linear bearing 11. The first reset spring 13 is provided so that the first detection rod 21 can be driven to automatically reset after the device detection is completed and the eccentric shaft 4 is out of contact with the detection head 211. A second reset spring 14 is connected between the third limit head 313 and the second linear bearing 12. The second reset spring 14 is provided so that the second detection rod 31 can be driven to automatically reset after the device detection is completed and the eccentric shaft 4 is out of contact with the abutment plate 311.

[0067] In summary, the eccentric shaft anti-reverse installation detection device provided in this embodiment has a simple structure. With the above detection method, it can perform anti-reverse installation detection during the feeding process of the eccentric shaft 4, timely discover the reverse installation of the eccentric shaft 4, and effectively avoid the collision of the centerless grinding equipment caused by the reverse installation of the eccentric shaft 4. It provides effective protection for the personal safety of employees and equipment safety, and reduces the failure rate of equipment.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An eccentric shaft anti-reverse installation detection device, used to prevent an eccentric shaft (4) from being reversely installed, the eccentric shaft (4) comprising a shaft portion (41) and an eccentric cam portion (42), characterized in that: The anti-reverse installation detection device comprises: Base (1); A first detection assembly (2), comprising a first detection rod (21), a first sensing element (22) and a first signal light (23); the first detection rod (21) is movably arranged on the base (1); the first detection rod (21) is provided with a detection head (211); a detection groove (212) is provided at the lower end of the detection head (211); the groove width of the detection groove (212) is greater than the diameter of the shaft portion (41) and less than the minimum diameter of the eccentric cam portion (42); the first sensing element (22) is arranged on the base (1) and is communicatively connected with the first signal light (23); the first sensing element (22) is suitable for controlling the first signal light (23) to light up when the first detection rod (21) moves to a target position relative to the base (1); The second detection assembly (3) comprises a second detection rod (31), a second sensing element (32) and a second signal light (33); the second detection rod (31) is movably arranged on the base (1); the second detection rod (31) is provided with an abutment plate (311); the abutment plate (311) and the detection head (211) are located on the same side of the base (1); the second sensing element (32) is arranged on the base (1) and is communicatively connected with the second signal light (33); the second sensing element (32) is suitable for controlling the second signal light (33) to light up when the second detection rod (31) moves to a target position relative to the base (1).

2. The eccentric shaft anti-reverse installation detection device according to claim 1, characterized in that: The first sensing element (22) comprises a first sensor (221) and a first trigger head (222); the first sensor (221) is fixed on the base (1) and is in communication connection with the first signal light (23); the first trigger head (222) is fixed on the first detection rod (21) and is in communication connection with the first sensor (221); the first trigger head (222) is suitable for triggering the first sensor (221) when the first detection rod (21) moves to a target position relative to the base (1), so that the first sensor (221) controls the first signal light (23) to light up; The second sensing element (32) comprises a second sensor (321) and a second trigger head (322); the second sensor (321) is fixed on the base (1) and is in communication connection with the second signal light (33); the second trigger head (322) is fixed on the second detection rod (31) and is in communication connection with the second sensor (321); the second trigger head (322) is suitable for triggering the second sensor (321) when the second detection rod (31) moves to a target position relative to the base (1), so that the second sensor (321) controls the second signal light (33) to light up.

3. The eccentric shaft anti-reverse installation detection device according to claim 2, characterized in that: A first linear bearing (11) is fixedly arranged on the base (1) in a vertical direction, and the first detection rod (21) is slidably arranged in the first linear bearing (11).

4. The eccentric shaft anti-reverse installation detection device according to claim 3, characterized in that: A first limit head (213) is arranged on the first detection rod (21) between the first linear bearing (11) and the first trigger head (222), and the first limit head (213) is suitable for abutting against the first linear bearing (11) when the first detection rod (21) descends to an extreme position relative to the base (1).

5. The eccentric shaft anti-reverse installation detection device according to claim 3, characterized in that: A first return spring (13) is connected between the detection head (211) and the first linear bearing (11).

6. The eccentric shaft anti-reverse installation detection device according to claim 2, characterized in that: A second linear bearing (12) is fixedly arranged on the base (1) in the vertical direction, and the second detection rod (31) is slidably arranged in the second linear bearing (12).

7. The eccentric shaft anti-reverse installation detection device according to claim 6, characterized in that: A second limit head (312) is arranged on the second detection rod (31) between the second linear bearing (12) and the second trigger head (322), and the second limit head (312) is suitable for abutting against the second linear bearing (12) when the second detection rod (31) descends to an extreme position relative to the base (1); A third limit head (313) is provided on the second detection rod (31) between the second linear bearing (12) and the abutment plate (311), and the third limit head (313) is suitable for abutting against the second linear bearing (12) when the second detection rod (31) rises to an extreme position relative to the base (1).

8. The eccentric shaft anti-reverse installation detection device according to claim 7, characterized in that: A second return spring (14) is connected between the third limiting head (313) and the second linear bearing (12).

9. The eccentric shaft anti-reverse installation detection device according to claim 2, characterized in that: A first bracket (151) and a second bracket (152) are fixedly arranged on the base (1); the first sensor (221) is fixed on the first bracket (151); and the second sensor (321) is fixed on the second bracket (152).

10. A method for detecting an eccentric shaft from being reversely installed, characterized in that: The eccentric shaft anti-reverse installation detection device according to any one of claims 1 to 9 is applied, and the eccentric shaft anti-reverse installation detection method comprises the following steps: S100, placing the eccentric shaft (4) on the same side of the detection head (211) and the abutment plate (311), with the eccentric shaft (4) axially parallel to the base (1); S200, moving the eccentric shaft (4) in a direction close to the base (1) without changing the parallel relationship between the axial direction of the eccentric shaft (4) and the base (1), one end of the eccentric shaft (4) pushes against the first detection rod (21) to move, and the other end of the eccentric shaft (4) pushes against the second detection rod (31) to move; S300, when the eccentric shaft (4) pushes against the second detection rod (31) to move to the target position, so that the second sensing element (32) controls the second signal light (33) to light up, it is determined whether the first signal light (23) is on; If yes, the eccentric shaft (4) is not installed upside down; If not, the eccentric shaft (4) is installed upside down.

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