Mechanical stroke limiting trigger adjusting device

Abstract

The utility model relates to the technical field of lifting or traction type winch equipment, and provides a mechanical stroke limiting trigger adjusting device which comprises a winding drum, the winding drum is connected with a supporting shaft, the supporting shaft is connected with a bearing cover through an installation bearing, and the bearing cover is connected with a first supporting plate and a second supporting plate. The first supporting plate and the second supporting plate are installed on traction winch equipment, a limiting rotary disc is rotationally arranged on the bearing cover, and an upper limiting part and a lower limiting part are arranged on the limiting rotary disc. The limiting rotary disc rotates along with the supporting shaft, the stroke is limited through an upper limiting part and a lower limiting part, the position of an upper limiting trigger rod is adjusted by rotating a first sliding ring, so that the upper stroke is adjusted, the limiting rotary disc is fixed through a first positioning bolt, and a plurality of first limiting holes are formed in the limiting rotary disc to achieve the effect of adjusting multiple strokes; the upper limiting trigger rod triggers the upper limiting signal contact in the rotating process, the position of the lower limiting trigger rod is adjusted by rotating the second sliding ring, and therefore the down stroke is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting or traction winch equipment, in particular to a mechanical travel limit trigger adjustment device. Background Art

[0002] In many areas of our production and life, various types of lifting or traction winch equipment are used. These equipment often have certain travel range requirements in actual work. Whether it is human operation errors or mechanical or electrical failures, the equipment operation area may exceed the actual required travel range, thereby causing production safety accidents. Therefore, how to effectively limit the equipment working range within the travel range required for production safety is of great significance to the equipment users.

[0003] At present, there are also some travel limit devices or mechanisms applied to this type of equipment, such as patent number CN220432177U, but this device also has some problems. After the upper limit adjustment is completed, when the lower limit needs to be adjusted again, the upper limit must be released at the same time. The upper / lower limit cannot be adjusted independently, which makes the operation more cumbersome.

[0004] Therefore, in view of the above problems, a mechanical travel limit trigger adjustment device is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and develops a mechanical stroke limit trigger adjustment device. The utility model can adjust the upper limit stroke and the lower limit stroke separately.

[0006] The technical solution to the technical problem solved by the utility model is: a mechanical travel limit trigger adjustment device, including a drum, the drum is connected to a support shaft, the support shaft is connected to a bearing cover by installing a bearing, the bearing cover is connected to a first support plate and a second support plate, the first support plate and the second support plate are installed on a traction winch device, a limit turntable is rotatably arranged on the bearing cover, and an upper limit part and a lower limit part are respectively arranged on the limit turntable.

[0007] The limit turntable rotates along with the supporting shaft, and the stroke is limited by the upper limit part and the lower limit part, and the upper limit part and the lower limit part are separately adjusted for convenient operation.

[0008] Preferably, the upper limit part includes an upper limit trigger rod, a first mounting bolt, a first adjusting gasket, a mounting head, an upper limit signal contact and a first support plate. The first support plate is arranged on the bearing cover, and multiple layers of first adjusting gaskets are arranged on the first support plate. The multiple layers of first adjusting gaskets are connected to the mounting head through the first mounting bolts, and the upper limit signal contact is arranged on the mounting head. The upper limit trigger rod is set when the upper limit turntable rotates.

[0009] Preferably, the upper limit portion also includes a first slip ring, a first limit hole, a first slide groove and a first positioning bolt. The first slip ring is coaxially rotatably arranged on the limit plate, the first slip ring is connected to the upper limit trigger rod, the first slip ring is symmetrically arranged with an arc-shaped first slide groove, a first positioning bolt is arranged in the first slide groove and connected to the first limit hole, and a plurality of first limit holes are arranged on the limit turntable.

[0010] The position of the upper limit trigger rod is adjusted by rotating the first slip ring, thereby adjusting the upper stroke, and fixed by the first positioning bolt. Multiple first limit holes are arranged on the limit turntable to achieve multiple stroke adjustment effects. The upper limit trigger rod triggers the upper limit signal contact during rotation, thereby generating an electrical signal to control the upper stroke to stop.

[0011] Preferably, the lower limit part includes a lower limit trigger rod, a second mounting bolt, a second adjusting gasket, a mounting head, a lower limit signal contact and a second support plate. The second support plate is arranged on the bearing cover. The second support plate is located on the side away from the first support plate. Multiple layers of second adjusting gaskets are arranged on the second support plate. The multiple layers of second adjusting gaskets are connected to the mounting head through the second mounting bolt. The mounting head is provided with a lower limit signal contact, and the limit turntable is rotated to set the lower limit trigger rod.

[0012] Preferably, the lower limit part also includes a second slip ring, a second limit hole, a second slide groove and a second positioning bolt. The second slip ring is coaxially rotatably arranged on the limit plate. The second slip ring is located below the upper limit trigger rod. The second slip ring is symmetrically arranged with an arc-shaped second slide groove. A second positioning bolt is arranged in the second slide groove and connected to the second limit hole. A plurality of second limit holes are arranged on the limit turntable.

[0013] The position of the lower limit trigger rod is adjusted by rotating the second slip ring, thereby adjusting the lower stroke, and fixed by the second positioning bolt. Multiple second limit holes are arranged on the limit turntable to achieve multiple stroke adjustment effects. The lower limit trigger rod triggers the lower limit signal contact during rotation, thereby generating an electrical signal to control the upper stroke to stop.

[0014] Preferably, a boss is provided on the mounting head, a first connecting rod is hingedly provided on the boss, a pressure block is provided at the connection between the first connecting rod and the upper limit signal contact or the lower limit signal contact, a second connecting rod is hingedly provided on the first connecting rod, and a contact is provided on the second connecting rod.

[0015] By adjusting the angle and position of the second connecting rod, the trigger position of the upper limit signal contact and the lower limit signal contact is fine-tuned to improve the stroke accuracy. The upper limit trigger rod or the lower limit trigger rod pushes the second connecting rod and the first connecting rod to move through the contact, and the boss of the first connecting rod triggers the upper limit signal contact or the lower limit signal contact to control the stroke.

[0016] Preferably, a connecting plate is provided on the bearing cover, and the side of the connecting plate away from the bearing cover is connected to the limiting turntable through a limiting bearing, and a reducer is provided on the side of the connecting plate close to the bearing cover, and the output end of the reducer is connected to the limiting turntable, and a fixing bolt is provided on the limiting turntable and connected to the output shaft of the reducer.

[0017] Preferably, a coupling is installed at the input end of the reducer, the coupling is connected to the input shaft of the reducer by screws, the coupling is connected to the transmission disc, and the transmission disc is arranged in the cavity of the support shaft.

[0018] By setting the reducer, the rotation angle of the support shaft is output according to a certain proportion, so as to achieve the purpose of controlling the stroke through a certain arc. By setting the limit bearing, the radial force between the limit turntable and the reducer output shaft is reduced, thereby extending the service life of the reducer.

[0019] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0020] The limit turntable rotates with the support shaft, and the stroke is limited by the upper limit part and the lower limit part. The position of the upper limit trigger rod is adjusted by rotating the first slip ring, so as to adjust the upper stroke, and it is fixed by the first positioning bolt. A plurality of first limit holes are arranged on the limit turntable to achieve various stroke adjustment effects. The upper limit trigger rod triggers the upper limit signal contact during the rotation process, so as to generate an electrical signal to control the upper stroke to stop. The position of the lower limit trigger rod is adjusted by rotating the second slip ring, so as to adjust the lower stroke, and it is fixed by the second positioning bolt. A plurality of second limit holes are arranged on the limit turntable to achieve various stroke adjustment effects. The lower limit trigger rod triggers the lower limit signal contact during the rotation process, so as to generate an electrical signal to control the upper stroke to stop.

[0021] By adjusting the angle and position of the second connecting rod, the trigger position of the upper limit signal contact and the lower limit signal contact is fine-tuned to improve the stroke accuracy. The upper limit trigger rod or the lower limit trigger rod pushes the second connecting rod and the first connecting rod to move through the contact, and the boss of the first connecting rod triggers the upper limit signal contact or the lower limit signal contact to control the stroke;

[0022] By setting the reducer, the rotation angle of the support shaft is output according to a certain proportion, so as to achieve the purpose of controlling the stroke through a certain arc. By setting the limit bearing, the radial force between the limit turntable and the reducer output shaft is reduced, thereby extending the service life of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0024] Figure 1 It is a cross-sectional schematic diagram of the utility model.

[0025] Figure 2 It is a top view of the utility model.

[0026] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0027] Figure 4 For the utility model Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0028] Figure 5 This is a front view of the structure of the upper limit signal contact of the utility model.

[0029] Figure 6 This is a front view of the structure of the lower limit signal contact of the utility model.

[0030] In the figure, 1, reel; 2, support shaft; 3, bearing cover; 4, mounting bearing; 5, contact; 6, limit turntable; 7, upper limit trigger rod; 8, first mounting bolt; 9, first adjustment gasket; 10, mounting head; 11, upper limit signal contact; 12, first support plate; 13, first slip ring; 14, first limit hole; 15, first slide groove; 16, first positioning bolt; 17, lower limit trigger rod; 18, second mounting bolt; 19. Second adjustment gasket; 20. Lower limit signal contact; 21. Second support plate; 22. Second slip ring; 23. Second limit hole; 24. Second slide groove; 25. Second positioning bolt; 26. Connecting plate; 27. Limit bearing; 28. Reducer; 29. ​​Fixing bolt; 30. Joint; 31. Screw; 32. Transmission plate; 33. Cavity; 34. Boss; 35. First connecting rod; 36. Pressure block; 37. Second connecting rod. DETAILED DESCRIPTION

[0031] In order to clearly illustrate the technical features of this solution, the utility model is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The utility model omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the utility model. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] like Figures 1 to 6 As shown, a mechanical stroke limit trigger adjustment device includes a drum 1, the drum 1 is connected to a support shaft 2, the support shaft 2 is connected to a bearing cover 3 by installing a bearing 4, the bearing cover 3 is connected to a first support plate 12 and a second support plate 21, the first support plate 12 and the second support plate 21 are installed on a traction winch device, a limit turntable 6 is rotatably arranged on the bearing cover 3, and an upper limit part and a lower limit part are respectively arranged on the limit turntable 6. The limit turntable 6 rotates with the support shaft 2, and the stroke is limited by the upper limit part and the lower limit part, and the upper limit part and the lower limit part are separately adjusted for convenient operation.

[0033] The upper limit part includes an upper limit trigger rod 7, a first mounting bolt 8, a first adjusting gasket 9, a mounting head 10, an upper limit signal contact 11 and a first support plate 12. The first support plate 12 is arranged on the bearing cover 3. Multiple layers of first adjusting gaskets 9 are arranged on the first support plate 12. The multiple layers of first adjusting gaskets 9 are connected to the mounting head 10 through the first mounting bolt 8. The upper limit signal contact 11 is arranged on the mounting head 10. The upper limit turntable 6 is rotated to set the upper limit trigger rod 7.

[0034] The upper limit portion also includes a first slip ring 13, a first limiting hole 14, a first slide groove 15 and a first positioning bolt 16. The first slip ring 13 is coaxially rotatably arranged on the limiting disk. The first slip ring 13 is connected to the upper limit trigger rod 7. The first slip ring 13 is symmetrically provided with an arc-shaped first slide groove 15. The first positioning bolt 16 is arranged in the first slide groove 15 and is connected to the first limiting hole 14. A plurality of first limiting holes 14 are arranged on the limiting turntable 6. The position of the upper limit trigger rod 7 is adjusted by rotating the first slip ring 13, thereby adjusting the upper stroke, and the upper stroke is fixed by the first positioning bolt 16. A plurality of first limiting holes 14 are arranged on the limiting turntable 6 to achieve the effect of multiple stroke adjustment. The upper limit trigger rod 7 triggers the upper limit signal contact 11 during the rotation process, thereby generating an electrical signal to control the upper stroke to stop.

[0035] The lower limit part includes a lower limit trigger rod 17, a second mounting bolt 18, a second adjusting gasket 19, a mounting head 10, a lower limit signal contact 20 and a second support plate 21. The second support plate 21 is arranged on the bearing cover 3. The second support plate 21 is located on the side away from the first support plate 12. A plurality of layers of second adjusting gaskets 19 are arranged on the second support plate 21. The plurality of layers of second adjusting gaskets 19 are connected to the mounting head 10 through the second mounting bolt 18. The mounting head 10 is provided with a lower limit signal contact 20. The limit turntable 6 is rotated to set the lower limit trigger rod 17.

[0036] The lower limit part also includes a second slip ring 22, a second limit hole 23, a second slide groove 24 and a second positioning bolt 25. The second slip ring 22 is coaxially rotatably arranged on the limit disk. The second slip ring 22 is located below the upper limit trigger rod 7. The second slip ring 22 is symmetrically provided with an arc-shaped second slide groove 24. A second positioning bolt 25 is arranged in the second slide groove 24 and connected to the second limit hole 23. A plurality of second limit holes 23 are arranged on the limit turntable 6. The position of the lower limit trigger rod 17 is adjusted by rotating the second slip ring 22, thereby adjusting the lower stroke, and the lower stroke is fixed by the second positioning bolt 25. A plurality of second limit holes 23 are arranged on the limit turntable 6 to achieve a variety of stroke adjustment effects. The lower limit trigger rod 17 triggers the lower limit signal contact 20 during the rotation process, thereby generating an electrical signal to control the upper stroke to stop.

[0037] A boss 34 is provided on the mounting head 10, a first connecting rod 35 is hingedly provided on the boss 34, a pressing block 36 is provided at the joint between the first connecting rod 35 and the upper limit signal contact 11 or the lower limit signal contact 20, a second connecting rod 37 is hingedly provided on the first connecting rod 35, and a contact 5 is provided on the second connecting rod 37. By adjusting the angle and position of the second connecting rod 37, the triggering position of the upper limit signal contact 11 and the lower limit signal contact 20 is fine-tuned to improve the stroke accuracy, the upper limit trigger rod 7 or the lower limit trigger rod 17 pushes the second connecting rod 37 and the first connecting rod 35 to move through the contact 5, and the boss 34 of the first connecting rod 35 triggers the upper limit signal contact 11 or the lower limit signal contact 20 to control the stroke.

[0038] A connecting plate 26 is arranged on the bearing cover 3, and the side of the connecting plate 26 away from the bearing cover 3 is connected to the limiting turntable 6 through a limiting bearing 27. A reducer 28 is arranged on the side of the connecting plate 26 close to the bearing cover 3, and the output end of the reducer 28 is connected to the limiting turntable 6. A fixing bolt 29 is arranged on the limiting turntable 6 and connected to the output shaft of the reducer 28.

[0039] A coupling 30 is installed at the input end of the reducer 28, and the coupling 30 is connected to the input shaft of the reducer 28 by a screw 31. The coupling 30 is connected to a transmission disc 32, and the transmission disc 32 is arranged in a cavity 33 of the support shaft 2. By setting the reducer 28, the rotation angle of the support shaft 2 is output according to a certain proportion, so as to achieve the purpose of controlling the stroke through a certain arc, and by setting the limit bearing 27, the radial force between the limit rotating disc 6 and the output shaft of the reducer 28 is reduced, thereby extending the service life of the reducer 28.

[0040] Working principle: by setting the reducer 28, the rotation angle of the support shaft 2 is output according to a certain proportion, the support shaft 2 drives the limit turntable 6 to rotate through the reducer 28, and the limit turntable 6 drives the upper limit trigger rod 7 and the lower limit trigger rod 17 to rotate, and the upper limit trigger rod 7 and the lower limit trigger rod 17 trigger the upper limit signal contact 11 and the lower limit signal contact 20, so as to achieve the purpose of controlling the stroke, and a plurality of first limit holes 14 and a plurality of second limit holes 23 are arranged on the limit turntable 6 to achieve a variety of stroke adjustment effects. After the device is installed, first start the equipment and run it to the lower limit position, adjust the lower limit trigger rod 17 to the trigger position of the lower limit signal contact 20, and fix the lower limit trigger rod 17 to the limit turntable 6 with the second mounting bolt 18; then run the equipment to the upper limit position, adjust the upper limit trigger rod 7 to the trigger position of the upper limit signal contact 11, and fix the upper limit trigger rod 7 to the limit turntable 6 with the first mounting bolt 8, and the stroke limit setting is completed. At this time, it is necessary to reciprocate the device to verify whether the upper / lower limit position settings are appropriate. If not, just slightly adjust the trigger positions of the upper limit trigger rod 7 and the lower limit trigger rod 17. If the device is used at a fixed point, the initial limit position is generally fixed, so the lower limit trigger rod 17 is generally in the same position after being pressed and fixed. You only need to adjust the upper limit, that is, the position of the upper limit trigger rod 7.

[0041] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, this does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A mechanical travel limit trigger adjustment device, comprising a reel (1), characterized in that: The drum (1) is connected to the support shaft (2), the support shaft (2) is connected to the bearing cover (3) by means of a mounting bearing (4), the bearing cover (3) is connected to a first support plate (12) and a second support plate (21), the first support plate (12) and the second support plate (21) are mounted on a traction winch device, a limit turntable (6) is rotatably arranged on the bearing cover (3), and an upper limit portion and a lower limit portion are respectively arranged on the limit turntable (6).

2. A mechanical travel limit trigger adjustment device according to claim 1, characterized in that: The upper limit portion comprises an upper limit trigger rod (7), a first mounting bolt (8), a first adjustment gasket (9), a mounting head (10), an upper limit signal contact (11) and a first support plate (12); the first support plate (12) is arranged on the bearing cover (3); multiple layers of first adjustment gaskets (9) are arranged on the first support plate (12); the multiple layers of the first adjustment gaskets (9) are connected to the mounting head (10) via the first mounting bolt (8); the upper limit signal contact (11) is arranged on the mounting head (10); and the upper limit turntable (6) is rotated to set the upper limit trigger rod (7).

3. A mechanical travel limit trigger adjustment device according to claim 2, characterized in that: The upper limit portion further comprises a first slip ring (13), a first limit hole (14), a first slide groove (15) and a first positioning bolt (16); the first slip ring (13) is coaxially rotatably arranged on the limit disk; the first slip ring (13) is connected to the upper limit trigger rod (7); an arc-shaped first slide groove (15) is symmetrically arranged on the first slip ring (13); a first positioning bolt (16) is arranged in the first slide groove (15) and is connected to the first limit hole (14); and a plurality of first limit holes (14) are arranged on the limit rotating disk (6).

4. The mechanical travel limit trigger adjustment device according to claim 1 is characterized in that: The lower limit portion comprises a lower limit trigger rod (17), a second mounting bolt (18), a second adjustment gasket (19), a mounting head (10), a lower limit signal contact (20) and a second support plate (21); the second support plate (21) is arranged on the bearing cover (3); the second support plate (21) is located on a side away from the first support plate (12); multiple layers of second adjustment gaskets (19) are arranged on the second support plate (21); the multiple layers of second adjustment gaskets (19) are connected to the mounting head (10) through the second mounting bolt (18); the mounting head (10) is provided with a lower limit signal contact (20); and the limit turntable (6) is rotated to set the lower limit trigger rod (17).

5. A mechanical travel limit trigger adjustment device according to claim 4, characterized in that: The lower limit portion further comprises a second slip ring (22), a second limit hole (23), a second slide groove (24) and a second positioning bolt (25); the second slip ring (22) is coaxially rotatably arranged on the limit disk; the second slip ring (22) is located below the upper limit trigger rod (7); an arc-shaped second slide groove (24) is symmetrically arranged on the second slip ring (22); a second positioning bolt (25) is arranged in the second slide groove (24) and is connected to the second limit hole (23); and a plurality of second limit holes (23) are arranged on the limit rotating disk (6).

6. A mechanical travel limit trigger adjustment device according to claim 4, characterized in that: A boss (34) is provided on the mounting head (10), a first connecting rod (35) is hingedly provided on the boss (34), a pressing block (36) is provided at the junction of the first connecting rod (35) and the upper limit signal contact (11) or the lower limit signal contact (20), a second connecting rod (37) is hingedly provided on the first connecting rod (35), and a contact (5) is provided on the second connecting rod (37).

7. The mechanical travel limit trigger adjustment device according to claim 1 is characterized in that: A connecting plate (26) is provided on the bearing cover (3); a side of the connecting plate (26) away from the bearing cover (3) is connected to the limiting rotating plate (6) via a limiting bearing (27); a reducer (28) is provided on a side of the connecting plate (26) close to the bearing cover (3); an output end of the reducer (28) is connected to the limiting rotating plate (6); and a fixing bolt (29) is provided on the limiting rotating plate (6) and is connected to an output shaft of the reducer (28).

8. The mechanical travel limit trigger adjustment device according to claim 7, characterized in that: The input end of the reducer (28) is provided with a coupling (30), the coupling (30) and the input shaft of the reducer (28) are connected by screws (31), the coupling (30) is connected to a transmission disc (32), and the transmission disc (32) is arranged in a cavity (33) of the support shaft (2).

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