Trolley limiting and buffering device of bridge crane

Abstract

The utility model discloses a trolley limiting and buffering device of a bridge crane, and relates to the technical field of cranes, in particular to the trolley limiting and buffering device of the bridge crane, which comprises a buffering box and a main beam, a supporting plate is arranged on the inner wall of the buffering box, and an adjusting chute is formed in the supporting plate; a connecting sliding rod is arranged in the adjusting sliding groove, a connecting sliding block is arranged on the outer surface of the connecting sliding rod, a first spring is arranged on the outer surface of the connecting sliding block, one end of the first spring is arranged on the inner wall of the adjusting sliding groove, a connecting rod is rotationally connected to the outer surface of the connecting sliding block, and a fixing base is rotationally connected to the end, away from the connecting sliding block, of the connecting rod. According to the trolley limiting and buffering device of the bridge crane, through cooperative arrangement of the supporting plate, the connecting rod, the first spring, the adjusting plate, the damper, the supporting sliding rod, the buffering plate, the second spring, a U-shaped elastic ring, a rubber non-slip mat and a third spring, the trolley limiting and buffering device of the bridge crane has the effects of optimizing the buffering structure and improving the buffering quality.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a trolley limit buffer device for a bridge crane. Background Art

[0002] A crane is a multi-action lifting machine that can lift and carry heavy objects vertically and horizontally within a certain range. It is also called an overhead crane, an overhead crane, or a crane. Some lifting equipment has the working characteristic of intermittent movement, that is, the corresponding mechanisms of taking materials, moving, unloading, etc. work alternately in a working cycle. The development and use of cranes in the market are becoming more and more extensive. During the operation of the crane, in order to prevent the operation safety of the lifting trolley, it is often necessary to set a limit buffer at a specific position.

[0003] The buffer structure of the existing crane buffer device is single and the buffer effect is relatively poor. At the same time, most of the existing crane buffer devices are fixed to the end of the supporting beam by bolts, which is troublesome to disassemble and repair. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a trolley limit buffer device for a bridge crane, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a trolley limit buffer device of a bridge crane, comprising a buffer box and a main beam, the inner wall of the buffer box is provided with a support plate, an adjusting slide groove is provided inside the support plate, a connecting slide rod is provided inside the adjusting slide groove, a connecting slide rod is provided on the outer surface of the connecting slide rod, a first spring is provided on the outer surface of the connecting slide rod, one end of the first spring is provided on the inner wall of the adjusting slide groove, a connecting rod is rotatably connected to the outer surface of the connecting slide rod, an end of the connecting rod away from the connecting slide rod is rotatably connected to a fixed seat, an adjusting plate is provided on the outer surface of the fixed seat, a damper is provided between the adjusting plate and the support plate, a connecting through hole is provided between the adjusting plate and the support plate, a supporting slide rod is slidably connected inside the connecting through hole, a buffer plate is provided at one end of the supporting slide rod, a limiting plate is provided at one end of the supporting slide rod away from the buffer plate, a second spring is provided on the outer surface of the limiting plate, and an end of the second spring away from the limiting plate is provided on the inner wall of the buffer box, and a limiting ring is provided on the outer surface of the supporting slide rod.

[0008] Optionally, a positioning plate is provided inside the buffer box, a support rod is slidably connected inside the positioning plate, a U-shaped elastic ring is provided at one end of the support rod, a rubber anti-slip pad is provided inside the U-shaped elastic ring, a positioning ring is provided on the outer surface of the support rod, a third spring is provided on the outer surface of the positioning ring, and one end of the third spring is provided on the positioning plate.

[0009] Optionally, the number of connecting rods on the support plate is two, which are symmetrical to each other, and the number of U-shaped elastic rings is two.

[0010] Optionally, a lifting trolley is rollingly connected to the upper surface of the main beam, and a connecting through hole is opened on the outside of the lifting trolley, and the position of the connecting through hole is matched with the position of the output shaft of the lifting trolley and the U-shaped elastic ring.

[0011] Optionally, an installation bin is provided at the bottom of the buffer box, a limit slide bar is provided inside the installation bin, a fixing ring is provided on the outer surface of the limit slide bar, a fourth spring is provided on the outer surface of the fixing ring, one end of the fourth spring is provided on the inner wall of the installation bin, an adjusting rack is provided on the outer surface of the fixing ring, a transmission gear is meshed on the outer surface of the adjusting rack, a support shaft is connected to the internal rotation of the transmission gear, the support shaft is provided on the inner wall of the installation bin, a fixing plate is provided on the outer surface of the fixing plate, an L-shaped connecting rod is provided at one end of the fixing plate, the L-shaped connecting rod is slidably connected to the bottom surface of the buffer box, and a control rod is provided at one end of the adjusting rack.

[0012] Optionally, there are two transmission gears in the installation bin, which are symmetrical to each other, and there are two adjustment racks on each transmission gear, which are symmetrical to each other about the center of the transmission gear.

[0013] Optionally, a plug-in groove is provided at the end of the main beam, and the position of the plug-in groove is matched with the position of the L-shaped connecting rod.

[0014] (III) Beneficial effects

[0015] The utility model provides a trolley limit buffer device for a bridge crane, which has the following beneficial effects:

[0016] 1. The trolley limit buffer device of the bridge crane has an optimized buffer structure and improved buffer quality through the coordinated arrangement of a support plate, a connecting rod, a first spring, an adjustment plate, a damper, a support slide bar, a buffer plate, a second spring, a U-shaped elastic ring, a rubber anti-slip pad and a third spring.

[0017] 2. The trolley limit buffer device of the bridge crane has the effect of facilitating the rapid replacement and installation of the buffer structure through the coordinated arrangement of the fourth spring, the adjusting rack, the transmission gear, the L-shaped connecting rod, the control rod and the plug-in slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 3 This is a schematic diagram of the internal structure of the buffer box of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the installation bin of the utility model;

[0022] Figure 5 This is a side structural schematic diagram of the buffer box of the utility model;

[0023] Figure 6 The internal structure diagram of the main beam of the utility model is shown in FIG.

[0024] Figure 7 It is a schematic structural diagram of the front view of the utility model.

[0025] In the figure: 1. buffer box; 2. main beam; 3. support plate; 4. first spring; 5. connecting rod; 6. adjustment plate; 7. damper; 8. buffer plate; 9. limit ring; 10. second spring; 11. U-shaped elastic ring; 12. rubber anti-skid pad; 13. third spring; 14. lifting trolley; 15. fourth spring; 16. adjustment rack; 17. transmission gear; 18. control lever; 19. plug-in slot; 20. L-shaped connecting rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1

[0028] A trolley limit buffer device for a bridge crane comprises a buffer box 1 and a main beam 2, a support plate 3 is arranged on the inner wall of the buffer box 1, an adjusting slot is provided inside the support plate 3, a connecting slide rod is arranged inside the adjusting slot, a connecting slider is arranged on the outer surface of the connecting slider, a first spring 4 is arranged on the outer surface of the connecting slider, one end of the first spring 4 is arranged on the inner wall of the adjusting slot, a connecting rod 5 is rotatably connected to the outer surface of the connecting slider, an end of the connecting rod 5 away from the connecting slider is rotatably connected to a fixed seat, an adjusting plate 6 is arranged on the outer surface of the fixed seat, a damper 7 is arranged between the adjusting plate 6 and the support plate 3, a connecting through hole is provided between the adjusting plate 6 and the support plate 3, a supporting slide rod is slidably connected inside the connecting through hole, a buffer plate 8 is arranged on one end of the supporting slide rod, a limiting piece is arranged on the end of the supporting slide rod away from the buffer plate 8, and the limiting piece A second spring 10 is provided on the outer surface, and one end of the second spring 10 away from the limit plate is arranged on the inner wall of the buffer box 1, a limit ring 9 is provided on the outer surface of the support slide rod, a positioning plate is provided inside the buffer box 1, and the inner sliding connection of the positioning plate is provided with a support rod, one end of the support rod is provided with a U-shaped elastic ring 11, and a rubber anti-slip pad 12 is provided inside the U-shaped elastic ring 11, a positioning ring is provided on the outer surface of the support rod, and a third spring 13 is provided on the outer surface of the positioning ring, and one end of the third spring 13 is provided on the positioning plate, the number of connecting rods 5 on the support plate 3 is two, which are symmetrical to each other, and the number of U-shaped elastic rings 11 is two, and a lifting trolley 14 is rollingly connected to the upper surface of the main beam 2, and a connecting through hole is opened on the outside of the lifting trolley 14, and the position of the connecting through hole is adapted to the output shaft of the lifting trolley 14 and the position of the U-shaped elastic ring 11.

[0029] In order to achieve the effect of optimizing the buffer structure and improving the buffer quality of the trolley limit buffer device of the bridge crane, as shown in the attached Figure 1-3As shown, the present application adopts the following structure, through the matching arrangement of the support plate 3, the connecting rod 5, the first spring 4, the adjustment plate 6, the damper 7, the support slide bar, the buffer plate 8, the second spring 10, the U-shaped elastic ring 11, the rubber anti-skid pad 12, and the third spring 13, during use, when the lifting trolley 14 moves to the end side of the beam to stop power output, the lifting trolley 14 slides left and right under inertia, so that the rubber anti-skid pad 12 on the U-shaped elastic ring 11 first contacts the output shaft of the pulley of the lifting trolley 14, so that the rubber anti-skid pad 12 rubs the output shaft to complete the initial deceleration buffer, and as The lifting trolley 14 continues to slide, the support rod, while squeezing the third spring 13, the buffer plate 8 contacts the lifting trolley 14, so that the buffer plate 8 and the support slide bar slide, stretching the second spring 10, completing the deceleration buffer again, and as the support slide bar slides, the limit ring 9 contacts the adjustment plate 6, so that the adjustment plate 6 slides along the support slide bar, driving the connecting rod 5 to rotate, thereby squeezing the first spring 4 and the damper 7, completing the third deceleration buffer, offsetting the inertial impact of the lifting trolley 14, thereby achieving the effect of optimizing the buffer structure and improving the buffer quality of the trolley limit buffer device of the bridge crane;

[0030] A trolley limit buffer device for a bridge crane, wherein an installation bin is provided at the bottom of a buffer box 1, a limit slide bar is provided inside the installation bin, a fixing ring is provided on the outer surface of the limit slide bar, a fourth spring 15 is provided on the outer surface of the fixing ring, one end of the fourth spring 15 is provided on the inner wall of the installation bin, an adjusting rack 16 is provided on the outer surface of the fixing ring, a transmission gear 17 is meshed on the outer surface of the adjusting rack 16, a support shaft is rotatably connected to the inside of the transmission gear 17, the support shaft is provided on the inner wall of the installation bin, a fixing plate is provided on the outer surface of the adjusting rack 16, an L-shaped connecting clamping rod 20 is provided at one end of the fixing plate, the L-shaped connecting clamping rod 20 is slidably connected to the bottom surface of the buffer box 1, a control rod 18 is provided at one end of the adjusting rack 16, the number of transmission gears 17 in the installation bin is two, which are symmetrical to each other, the number of adjusting racks 16 on each transmission gear 17 is two, which are symmetrical to each other about the center of the transmission gear 17, a plug-in slot 19 is provided at the end of the main beam 2, and the position of the plug-in slot 19 is adapted to the position of the L-shaped connecting clamping rod 20.

[0031] In order to make the trolley limit buffer device of the bridge crane have the effect of facilitating the rapid replacement and installation of the buffer structure, as shown in the attached Figure 4-7As shown, the present application adopts the following structure, through the matching arrangement of the fourth spring 15, the adjusting rack 16, the transmission gear 17, the L-shaped connecting clamp rod 20, the control rod 18, and the plug-in slot 19, during use, by pulling the control rod 18, the adjusting rack 16 is driven to slide along the limiting slide rod, squeezing the fourth spring 15, so that the L-shaped connecting clamp rod 20 is disengaged from the plug-in slot 19 on the main beam 2, so that the buffer box 1 can be quickly removed from the main beam 2. During installation, the control rod 18 is pulled to drive the adjusting rack 16 to slide along the limiting slide rod, squeezing the fourth spring 15, and adjusting The position of the L-shaped connecting rod 20 makes the position of the L-shaped connecting rod 20 adapt to the position of the plug-in slot 19. Then, the L-shaped connecting rod 20 is plugged into the plug-in slot 19, and the control rod 18 is released. Under the elastic force of the fourth spring 15, the L-shaped connecting rod 20 is quickly plugged into the plug-in slot. At the same time, under the action of the transmission gear 17, the control rod 18 on one side is pulled to control the L-shaped connecting rods 20 on both sides to slide at the same time, thereby improving the convenience of installation, thereby realizing that the trolley limit buffer device of the bridge crane has the effect of facilitating the rapid replacement and installation of the buffer structure.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A trolley limit buffer device for a bridge crane, comprising a buffer box and a main beam, characterized in that: The inner wall of the buffer box is provided with a support plate, an adjusting slot is provided inside the support plate, a connecting slide rod is provided inside the adjusting slot, a connecting slider is provided on the outer surface of the connecting slide rod, a first spring is provided on the outer surface of the connecting slider, one end of the first spring is provided on the inner wall of the adjusting slot, the outer surface of the connecting slider is rotatably connected with a connecting rod, and the end of the connecting rod away from the connecting slider is rotatably connected with a fixed seat, an adjusting plate is provided on the outer surface of the fixed seat, a damper is provided between the adjusting plate and the support plate, a connecting through hole is provided between the adjusting plate and the support plate, the supporting slide rod is slidably connected inside the connecting through hole, a buffer plate is provided at one end of the supporting slide rod, a limiting plate is provided at the end of the supporting slide rod away from the buffer plate, a second spring is provided on the outer surface of the limiting plate, and the end of the second spring away from the limiting plate is provided on the inner wall of the buffer box, and a limiting ring is provided on the outer surface of the support slide rod.

2. The trolley limit buffer device for a bridge crane according to claim 1, characterized in that: A positioning plate is provided inside the buffer box, a support rod is slidably connected inside the positioning plate, a U-shaped elastic ring is provided at one end of the support rod, a rubber anti-slip pad is provided inside the U-shaped elastic ring, a positioning ring is provided on the outer surface of the support rod, a third spring is provided on the outer surface of the positioning ring, and one end of the third spring is provided on the positioning plate.

3. The trolley limit buffer device for a bridge crane according to claim 1, characterized in that: The number of connecting rods on the support plate is two, which are symmetrical to each other, and the number of U-shaped elastic rings is two.

4. The trolley limit buffer device for a bridge crane according to claim 1, characterized in that: The upper surface of the main beam is rollingly connected with a lifting trolley, and a connecting through hole is provided on the outside of the lifting trolley. The position of the connecting through hole is matched with the position of the output shaft of the lifting trolley and the position of the U-shaped elastic ring.

5. The trolley limit buffer device for a bridge crane according to claim 1, characterized in that: The buffer box is provided with an installation bin at the bottom, a limit slide bar is provided inside the installation bin, a fixing ring is provided on the outer surface of the limit slide bar, a fourth spring is provided on the outer surface of the fixing ring, one end of the fourth spring is provided on the inner wall of the installation bin, an adjusting rack is provided on the outer surface of the fixing ring, a transmission gear is meshed on the outer surface of the adjusting rack, a support shaft is connected to the internal rotation of the transmission gear, the support shaft is provided on the inner wall of the installation bin, a fixing plate is provided on the outer surface of the adjusting rack, an L-shaped connecting rod is provided at one end of the fixing plate, the L-shaped connecting rod is slidably connected to the bottom surface of the buffer box, and a control rod is provided at one end of the adjusting rack.

6. The trolley limit buffer device for a bridge crane according to claim 5, characterized in that: There are two transmission gears in the installation bin, which are symmetrical to each other. There are two adjustment racks on each transmission gear, which are symmetrical to each other about the center of the transmission gear.

7. The trolley limit buffer device for a bridge crane according to claim 1, characterized in that: An inserting groove is provided at the end of the main beam, and the position of the inserting groove is matched with the position of the L-shaped connecting clamping rod.

Images