A moving mechanism for the base of a road and bridge crane

Abstract

The present invention belongs to the field of mobile mechanisms, in particular to a mobile mechanism for the base of a road and bridge crane, which comprises a base. A storage groove is formed in the bottom of the base. Two rotating shafts are rotatably installed on the front and rear inner walls of the storage groove. Two rotating seats are fixedly installed on the rotating shafts. A moving wheel is installed on one side of the rotating seat. A driven bevel gear is fixedly installed on the rotating shaft. A rotating hole is formed in the top inner wall of the storage groove. A transmission shaft is rotatably installed in the rotating hole. A driving bevel gear is fixedly installed at the bottom end of the transmission shaft, and the driving bevel gear meshes with the driven bevel gear. A rotating gear is fixedly installed on the transmission shaft. Rectangular holes are formed in both inner walls of the storage groove. The design of the present invention is reasonable. It can store the moving wheels in the storage groove, achieving the purpose of increasing the stability of the base placement. Through the cooperation of the support screw and the connecting rod, the purpose of increasing the lateral stability of the base can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile mechanisms, and in particular to a mobile mechanism for the base of a road and bridge crane. Background Art

[0002] A crane refers to a multi-action lifting machine that vertically lifts and horizontally transports heavy objects within a certain range. Also known as an overhead crane, a single-arm crane is a very common type of crane. A single-arm crane is usually fixed through a fixed base, and the fixed base of the single-arm crane is a necessary device for stabilizing the single-arm crane.

[0003] Currently, the patent document with the authorization announcement number CN212050287U discloses a fixed base for a crane, including a base, a crane main beam, a strengthening arm, a rotating mechanism, and a lifting mechanism. A fixed cylinder is fixedly provided at the upper end of the middle part of the base. A crane support beam is sleeved inside the fixed cylinder. The crane support beam is cylindrical, and a fixed sliding sleeve is also slidably sleeved on the support beam. The upper end of the crane support beam is fixedly connected to the lower left end of the crane main beam. A lifting mechanism is slidably provided at the lower end of the crane main beam. First hinge seats are fixedly provided on both the left and right sides of the fixed sliding sleeve. Second hinge seats are provided on both the left and right sides of the upper end of the base. The first hinge seat is hinged to the upper end of the strengthening arm, and the second hinge seat is hinged to the lower end of the strengthening arm. A rotating mechanism accommodation groove is also opened at the upper end of the base, and a rotating mechanism is provided inside the rotating mechanism accommodation groove. The lower end of the crane main beam is connected to the rotating mechanism; the utility model can effectively fix the single-arm crane and further improve the stability of the single-arm crane during operation.

[0004] In actual use, it is found that the base of the road and bridge crane is not convenient to move. Even if some bases of the road and bridge crane are equipped with rollers, it is not convenient to store the rollers during placement, which affects the stability of the base placement. Therefore, we propose a mobile mechanism for the base of the road and bridge crane to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a mobile mechanism for the base of a road and bridge crane.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A moving mechanism for the base of a road and bridge crane, including a base. A receiving groove is opened at the bottom of the base. Two rotating shafts are rotatably installed on the front and rear inner walls of the receiving groove. Two rotating seats are fixedly installed on the rotating shafts. A moving wheel is installed on one side of the rotating seat. A driven bevel gear is fixedly installed on the rotating shaft. A rotating hole is opened on the top inner wall of the receiving groove. A transmission shaft is rotatably installed in the rotating hole. A driving bevel gear is fixedly installed at the bottom end of the transmission shaft, and the driving bevel gear meshes with the driven bevel gear;

[0008] A rotating gear is fixedly installed on the transmission shaft. Rectangular holes are opened on both inner walls of the receiving groove. A rack seat slides in the rectangular hole, and the rack seat meshes with the corresponding rotating gear. The same control box is installed on the front and rear inner walls of the receiving groove. A moving hole is opened on the top inner wall of the control box. A moving plate slides in the moving hole, and the moving plate is slidably connected to the control box. One end of the rack seat is fixedly installed on the corresponding moving plate. A servo motor is fixedly installed on one side of the control box. A threaded rod is fixedly installed on the output shaft of the servo motor, and the moving plate is threadedly sleeved on the threaded rod.

[0009] Preferably, the threaded rod is provided with external threads with opposite helix directions on both sides. An internal threaded hole is opened on the moving plate, and the external threads mesh with the corresponding internal threaded hole.

[0010] Preferably, a reinforcing plate is fixedly installed on the top of the base. A connecting groove is opened on one side of the reinforcing plate. A supporting mechanism is provided on one side of the reinforcing plate. A rotating mechanism is provided between the supporting mechanism and the connecting groove.

[0011] Preferably, the rotating mechanism includes a connecting shaft and a rotating seat. The connecting shaft is rotatably installed on the front and rear inner walls of the connecting groove, and the rotating seat is fixedly installed on the connecting shaft.

[0012] Preferably, the supporting mechanism includes a connecting rod, a threaded groove and a supporting screw. The connecting rod is fixedly installed at the bottom end of the rotating seat. The threaded groove is opened at the bottom end of the connecting rod, and the supporting screw is threadedly installed in the threaded groove.

[0013] Preferably, the top end of the transmission shaft extends into the connecting groove, and a transmission mechanism is provided between the transmission shaft and the connecting shaft.

[0014] Preferably, the transmission mechanism includes a main bevel gear and a sub-bevel gear. The main bevel gear is fixedly installed at the top end of the transmission shaft. The sub-bevel gear is fixedly installed on the connecting shaft, and the sub-bevel gear meshes with the main bevel gear.

[0015] Preferably, a triangular seat is fixedly installed on the other side of the reinforcing plate, and the bottom end of the triangular seat is fixedly installed on the base.

[0016] Preferably, a stabilizing plate is fixedly installed in the connecting groove. A stabilizing hole is formed in the stabilizing plate, and the transmission shaft is rotatably connected to the stabilizing hole. A guiding seat is formed in the top inner wall of the receiving groove. A guiding hole is formed in one side of the guiding seat, and the rack seat is slidably connected to the stabilizing hole.

[0017] Advantages of the present invention:

[0018] 1. The moving wheels can be used to move the base of the road and bridge crane. When the base is moved to the designated position, by starting the servo motor, the servo motor can drive the threaded rod to rotate through the output shaft. The threaded rod can drive the two moving plates to move, and the moving directions of the two moving plates are opposite. The moving plates can drive the rack seat to move. The rack seat can drive the transmission shaft to rotate through the rotating gear. Under the cooperation of the driving bevel gear and the driven bevel gear, the transmission shaft can drive the rotating shaft to rotate. The rotating shaft can drive the rotating seat and the moving wheels to rotate, so as to realize the purpose of receiving the moving wheels into the receiving groove and increasing the stability of the base placement.

[0019] 2. Under the cooperation of the main bevel gear and the sub-bevel gear, the rotation of the transmission shaft can drive the connecting shaft to rotate. The connecting shaft can drive the rotating seat to rotate. The rotating seat can drive the connecting rod to move away from the reinforcing plate, realizing the purpose of tilting the connecting rod. By rotating the supporting screw, under the action of the threaded groove, it can be realized that the supporting screw rotates and moves at the same time. At this time, the supporting screw can contact the ground to realize the lateral support of the base, so as to realize the purpose of increasing the lateral stability of the base. Description of the drawings

[0020] Figure 1 is a three-dimensional structural schematic diagram of a moving mechanism of a base of a road and bridge crane proposed by the present invention;

[0021] Figure 2 is a front view structural schematic diagram of a moving mechanism of a base of a road and bridge crane proposed by the present invention;

[0022] Figure 3 is a partial structural schematic diagram A of a moving mechanism of a base of a road and bridge crane proposed by the present invention;

[0023] Figure 4 is a partial structural schematic diagram B of a moving mechanism of a base of a road and bridge crane proposed by the present invention;

[0024] Figure 5 is a partial structural schematic diagram C of a moving mechanism of a base of a road and bridge crane proposed by the present invention;

[0025] Figure 6 is a partial structural schematic diagram D of a moving mechanism of a base of a road and bridge crane proposed by the present invention.

[0026] In the figure: 1, base; 2, storage groove; 3, rotating shaft; 4, rotating seat; 5, moving wheel; 6, driven bevel gear; 7, rotating hole; 8, transmission shaft; 9, driving bevel gear; 10, rotating gear; 11, rectangular hole; 12, rack seat; 13, control box; 14, moving hole; 15, moving plate; 16, limiting rod; 17, servo motor; 18, threaded rod; 19, reinforcing plate; 20, connecting groove; 21, main bevel gear; 22, connecting shaft; 23, sub-bevel gear; 24, rotating seat; 25, connecting rod; 26, threaded groove; 27, supporting screw; 28, stabilizing plate; 29, triangular seat; 30, guiding seat. Specific embodiments

[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0028] When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. "Disposed" represents a way of existence, which can be connection, installation, fixed connection, active connection and other connection methods. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] Refer to Figure 1-6, A moving mechanism for a road and bridge crane base, comprising a base 1. A receiving groove 2 is formed in the bottom of the base 1. Two rotating shafts 3 are rotatably installed on the front and rear inner walls of the receiving groove 2. Two rotating seats 4 are fixedly installed on the rotating shafts 3. A moving wheel 5 is installed on one side of the rotating seat 4. A driven bevel gear 6 is fixedly installed on the rotating shaft 3. A rotating hole 7 is formed in the top inner wall of the receiving groove 2. A transmission shaft 8 is rotatably installed in the rotating hole 7. A driving bevel gear 9 is fixedly installed at the bottom end of the transmission shaft 8, and the driving bevel gear 9 meshes with the driven bevel gear 6. A rotating gear 10 is fixedly installed on the transmission shaft 8. Rectangular holes 11 are formed in both inner walls of the receiving groove 2. A rack seat 12 slides in the rectangular hole 11, and the rack seat 12 meshes with the corresponding rotating gear 10. A control box 13 is installed on the front and rear inner walls of the receiving groove 2. A moving hole 14 is formed in the top inner wall of the control box 13. A moving plate 15 slides in the moving hole 14, and the moving plate 15 is slidably connected to the control box 13. One end of the rack seat 12 is fixedly installed on the corresponding moving plate 15. The movement of the rack seat 12 can drive the rotating gear 10 to rotate, so as to realize the rotation of the rotating seat 4 and the moving wheel 5, and achieve the purpose of receiving the moving wheel 5.

[0031] In this embodiment, a servo motor 17 is fixedly installed on one side of the control box 13. A threaded rod 18 is fixedly installed on the output shaft of the servo motor 17, and the moving plate 15 is threadedly sleeved on the threaded rod 18. The threaded rod 18 is provided with external threads with opposite helix directions on both sides. An internal threaded hole is formed in the moving plate 15, and the external thread meshes with the corresponding internal threaded hole. Since the threaded rod 18 is provided with external threads in two helix directions, the rotation of the threaded rod 18 can drive the two moving plates 15 to move, and the moving directions of the two moving plates 15 are opposite.

[0032] In this embodiment, a reinforcing plate 19 is fixedly installed on the top of the base 1. A connecting groove 20 is formed on one side of the reinforcing plate 19. A supporting mechanism is arranged on one side of the reinforcing plate 19. A rotating mechanism is arranged between the supporting mechanism and the connecting groove 20. The rotating mechanism includes a connecting shaft 22 and a rotating seat 24. The connecting shaft 22 is rotatably installed on the front and rear inner walls of the connecting groove 20. The rotating seat 24 is fixedly installed on the connecting shaft 22. The supporting mechanism includes a connecting rod 25, a threaded groove 26 and a supporting screw 27. The connecting rod 25 is fixedly installed at the bottom end of the rotating seat 24. The threaded groove 26 is formed at the bottom end of the connecting rod 25. The supporting screw 27 is threadedly installed in the threaded groove 26. With the cooperation of the rotating mechanism and the support, the supporting screw 27 and the connecting rod 25 can be placed obliquely, and the purpose of laterally supporting the base can be achieved through the supporting screw.

[0033] In this embodiment, the top end of the transmission shaft 8 extends into the connecting groove 20, and a transmission mechanism is provided between the transmission shaft 8 and the connecting shaft 22. The transmission mechanism includes a main bevel gear 21 and a sub-bevel gear 23. The main bevel gear 21 is fixedly installed on the top end of the transmission shaft 8, the sub-bevel gear 23 is fixedly installed on the connecting shaft 22, and the sub-bevel gear 23 meshes with the main bevel gear 21. On the other side of the reinforcing plate, a triangular seat 29 is fixedly installed, and the bottom end of the triangular seat 29 is fixedly installed on the base 1. By providing the triangular seat 29, the stability of the reinforcing plate 19 can be increased.

[0034] In this embodiment, a stabilizing plate 28 is fixedly installed in the connecting groove 20. A stabilizing hole is provided in the stabilizing plate 28, and the transmission shaft 8 is rotatably connected to the stabilizing hole. A guiding seat is provided on the top inner wall of the storage groove 2. A guiding hole is provided on one side of the guiding seat, and the rack seat 12 is slidably connected to the stabilizing hole. By providing the guiding seat and the guiding hole, the rack seat 12 can be guided to move stably.

[0035] In the present invention, the base 1 of the road and bridge crane can be moved by the moving wheels 5. When the base 1 moves to the designated position, by starting the servo motor 17, the servo motor 17 can drive the threaded rod 18 to rotate through the output shaft. The threaded rod 18 can drive the two moving plates 15 to move, and the moving directions of the two moving plates 15 are opposite. The moving plates 15 can drive the rack seat 12 to move. The rack seat 12 can drive the transmission shaft 8 to rotate through the rotating gear 10. Through the cooperation of the driving bevel gear 9 and the driven bevel gear 6, the transmission shaft 8 can drive the rotating shaft 3 to rotate. The rotating shaft 3 can drive the rotating seat 4 and the moving wheels 5 to rotate, so that the moving wheels 5 can be received in the storage groove 2, and the purpose of increasing the stability of the placement of the base 1 can be achieved. Through the cooperation of the main bevel gear 21 and the sub-bevel gear 23, the rotation of the transmission shaft 8 can drive the connecting shaft 22 to rotate. The connecting shaft 22 can drive the rotating seat 24 to rotate. The rotating seat 24 can drive the connecting rod 25 to move away from the reinforcing plate 19, realizing the purpose of tilting the connecting rod 25. By rotating the support screw 27, under the action of the threaded groove 26, the support screw 27 can rotate and move at the same time. At this time, the support screw 27 can contact the ground to realize the lateral support of the base 1, thereby achieving the purpose of increasing the lateral stability of the base 1.

[0036] The above has introduced in detail a moving mechanism of a road and bridge crane base provided by the present invention. Specific embodiments are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A moving mechanism for the base of a road and bridge crane, characterized in that, It includes a base (1). A storage groove (2) is formed in the bottom of the base (1). Two rotating shafts (3) are rotatably installed on the front and rear inner walls of the storage groove (2). Two rotating seats (4) are fixedly installed on the rotating shafts (3). A moving wheel (5) is installed on one side of the rotating seat (4). A driven bevel gear (6) is fixedly installed on the rotating shaft (3). A rotating hole (7) is formed in the top inner wall of the storage groove (2). A transmission shaft (8) is rotatably installed in the rotating hole (7). A driving bevel gear (9) is fixedly installed at the bottom end of the transmission shaft (8), and the driving bevel gear (9) meshes with the driven bevel gear (6). A rotating gear (10) is fixedly installed on the transmission shaft (8). Rectangular holes (11) are formed in both inner walls of the storage groove (2). A rack seat (12) slides in the rectangular hole (11), and the rack seat (12) meshes with the corresponding rotating gear (10). A control box (13) is installed on the front and rear inner walls of the storage groove (2). A moving hole (14) is formed in the top inner wall of the control box (13). A moving plate (15) slides in the moving hole (14), and the moving plate (15) is slidably connected to the control box (13). One end of the rack seat (12) is fixedly installed on the corresponding moving plate (15). A servo motor (17) is fixedly installed on one side of the control box (13). A threaded rod (18) is fixedly installed on the output shaft of the servo motor (17), and the moving plate (15) is threadedly sleeved on the threaded rod (18). A reinforcement plate (19) is fixedly installed on the top of the base (1). A connection groove (20) is formed on one side of the reinforcement plate (19). A support mechanism is arranged on one side of the reinforcement plate (19). A rotating mechanism is arranged between the support mechanism and the connection groove (20). The top end of the transmission shaft (8) extends into the connection groove (20), and a transmission mechanism is arranged between the transmission shaft (8) and the connection shaft (22). The transmission mechanism includes a main bevel gear (21) and a sub-bevel gear (23). The main bevel gear (21) is fixedly installed on the top end of the transmission shaft (8). The sub-bevel gear (23) is fixedly installed on the connection shaft (22), and the sub-bevel gear (23) meshes with the main bevel gear (21).

2. The moving mechanism of a road and bridge crane base according to claim 1, characterized in that, The threaded rod (18) is provided with external threads with opposite helical directions on both sides. An internal threaded hole is formed in the moving plate (15), and the external threads mesh with the corresponding internal threaded hole.

3. The moving mechanism of a road and bridge crane base according to claim 1, characterized in that, The rotating mechanism includes a connection shaft (22) and a rotating seat (24). The connection shaft (22) is rotatably installed on the front and rear inner walls of the connection groove (20). The rotating seat (24) is fixedly installed on the connection shaft (22).

4. The moving mechanism of a road and bridge crane base according to claim 1, characterized in that, The support mechanism includes a connecting rod (25), a threaded groove (26) and a support screw (27). The connecting rod (25) is fixedly installed at the bottom end of the rotating seat (24). The threaded groove (26) is formed in the bottom end of the connecting rod (25). The support screw (27) is threadedly installed in the threaded groove (26).

5. The moving mechanism of a road and bridge crane base according to claim 1, characterized in that, On the other side of the reinforcing plate (19), a triangular seat (29) is fixedly installed. The bottom end of the triangular seat (29) is fixedly installed on the base (1).

6. The moving mechanism of a road and bridge crane base according to claim 1, characterized in that, A stabilizing plate (28) is fixedly installed in the connecting groove (20). A stabilizing hole is formed in the stabilizing plate (28), and the transmission shaft (8) is rotatably connected to the stabilizing hole. A guiding seat (30) is formed in the top inner wall of the storage groove (2). A guiding hole is formed in one side of the guiding seat (30), and the rack seat (12) is slidably connected to the stabilizing hole.

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