A drive and steering device for self-transfer of a bridge erecting machine

Abstract

The present invention discloses a driving and steering device for the self-transferring of a bridge-building machine, comprising a bridge-building machine body, a driving support body, a steering axle, a universal joint, a driving motor, a longitudinal tie rod and a steering axle housing, wherein first lifting hydraulic cylinders are rotatably installed on both sides of one end of the bridge-building machine body, and the telescopic ends of the first lifting hydraulic cylinders on both sides are rotatably installed with driving support bodies, and the bottom side of one end of the driving support body is rotatably connected with one end of the bridge-building machine body, and a steering axle is installed below the other end of the driving support body; the driving module and steering module of the present invention, as an accessory of the bridge-building machine, can be installed on the main beam of the bridge-building machine when the bridge-building machine needs to be transferred, so as to realize the self-transferring of the bridge-building machine, without the need for other equipment to cooperate in the transfer, and without requiring a lot of preparation time during the transfer, thereby saving costs and bringing convenience to bridge-building construction.

Description

Technical Field

[0001] The invention relates to the field of bridge erection machines, in particular to a driving and steering device for self-transferring bridge erection machines. Background Art

[0002] A bridge-erecting machine is a device that places prefabricated beams onto prefabricated bridge piers; a bridge-erecting machine belongs to the category of cranes because its main function is to lift the beams, transport them to the location, and then lower them.

[0003] In actual operation and application, the existing driving and steering device for self-transfer of the bridge-building machine needs to be loaded on a transport vehicle for transfer. Before the transfer, some parts of the bridge-building machine need to be disassembled and reinstalled after the transfer. That is, a lot of time is needed for preparation and installation during use, which increases the cost and affects the efficiency of the bridge construction. Summary of the invention

[0004] The object of the present invention is to provide a driving and steering device for the self-transferring of a bridge-building machine, in order to overcome the technical problem that in the actual operation and application process of the above-mentioned existing driving and steering device for the self-transferring of a bridge-building machine, a transport vehicle is required to be loaded and transferred, and some parts of the bridge-building machine need to be disassembled before the transfer and need to be reinstalled after the transfer, that is, a lot of time is needed for preparation and installation during use, which increases the cost and affects the efficiency of bridge construction.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A driving and steering device for a bridge erection machine to be automatically transferred comprises a bridge erection machine body, a driving support body, a steering axle, a universal joint, a driving motor, a longitudinal tie rod and a steering axle housing, wherein first lifting hydraulic cylinders are rotatably mounted on both sides of one end of the bridge erection machine body, the telescopic ends of the first lifting hydraulic cylinders on both sides are rotatably mounted on the driving support body, and the bottom side of one end of the driving support body is rotatably connected to one end of the bridge erection machine body, a steering axle is mounted below the other end of the driving support body, a driving motor is mounted inside the steering axle, a universal joint is arranged at the center of one side of the steering axle, and the universal joint is connected to the output end of the driving motor, first steering oil cylinders are rotatably mounted on both sides of the steering axle, the telescopic ends of the first steering oil cylinders on both sides are connected to the longitudinal tie rods through tie rod pins, a first fixing ear is arranged at the center of the bottom end of the universal joint, and the longitudinal tie rods are connected to the first fixing ear through tie rod pins;

[0007] Second lifting hydraulic cylinders are vertically installed on both sides of the other end of the bridge-building machine body, and steering axle housings are installed at the telescopic ends of the second lifting hydraulic cylinders on both sides. Two second connecting ears are symmetrically installed on one side of the steering axle housing, and the two second connecting ears are respectively rotatably installed with the second steering oil cylinders. The telescopic ends of the second steering oil cylinders are both rotatably installed with steering knuckles, and the steering knuckles are respectively installed at both ends of the steering axle housing, and second tires are installed at the outer ends of the two steering knuckles. The two second connecting ears are rotatably connected to the two ends of the steering tie rod.

[0008] As a further solution of the present invention: a fixing seat is installed at the center of the top end of the steering bridge, a rubber sleeve is installed inside the fixing seat, and the steering bridge is connected to the steering bridge through a hinge pin passing through the rubber sleeve.

[0009] As a further solution of the present invention: first tires are installed at both ends of the steering bridge.

[0010] As a further solution of the present invention: first connecting ears are installed at both ends of the top of the steering bridge, and the first connecting ears are connected to the telescopic end of the second lifting hydraulic cylinder.

[0011] As a further solution of the present invention: second fixing ears are arranged above and below both ends of the steering axle housing, the steering knuckle is fixed between the two second fixing ears at the same end, and a first bearing is installed inside the steering knuckle, and the steering knuckle is rotatably connected to the steering axle housing through a king pin passing through the second fixing ears and the first bearing.

[0012] As a further solution of the present invention: a second bearing and a third bearing are respectively mounted on the outer side of one end of the steering knuckle, and wheel hubs are installed on the outer sides of the second bearing and the third bearing, a second tire is fixedly installed on the outer side of the wheel hub, and dust rings are installed on the outer sides of the two wheel hubs.

[0013] As a further solution of the present invention: the second steering oil cylinder and the steering tie rod are all rotatably connected to the steering knuckle via a latch, and the second connecting ear and the second steering oil cylinder are rotatably connected via a latch.

[0014] As a further solution of the present invention: the operation steps of using the driving steering device are:

[0015] Step 1: When the bridge erection machine is working, the first lifting hydraulic cylinder at one end of the bridge erection machine body is extended to drive the driving support body to rotate counterclockwise on the bridge erection machine body, and the height of one end of the bridge erection machine body is increased by the inclined driving support body. At the same time, the second lifting hydraulic cylinder at the other end of the bridge erection machine body is extended to drive the other end of the bridge erection machine body to rise, and the bridge erection machine body is in working state;

[0016] Step 2: The driving motor rotates, and the transmission is transmitted through the universal joint, and then the first tires at both ends are driven to rotate through the steering bridge to ensure the driving of the bridge erection machine body. At the same time, the first steering cylinder on one side is extended, and the first steering cylinder on the other side is contracted synchronously, thereby driving the longitudinal tie rod to pull the steering bridge to rotate. The overall rotation angle is small, and the elastic deformation of the rubber sleeve itself ensures that the steering bridge and the driving support body are connected and the steering is normal;

[0017] Step three: At the same time, the second steering cylinder connected to one side of the steering bridge housing through the second connecting ear works, and the second steering cylinder on one side extends while the second steering cylinder on the other side contracts. At the same time, the steering stability is ensured by the steering tie rod, and then the steering operation of the bridge crane body is completed in coordination with the steering of the driving support body.

[0018] The beneficial effects of the present invention are as follows: through reasonable structural design, the present invention extends the first lifting hydraulic cylinder at one end of the bridge-building machine body to drive the driving support body to rotate counterclockwise on the bridge-building machine body, and increases the height of one end of the bridge-building machine body through the inclined driving support body. At the same time, the second lifting hydraulic cylinder at the other end of the bridge-building machine body extends to drive the other end of the bridge-building machine body to rise, and adjusts the bridge-building machine body to a working state, drives the motor to work and rotate, and then drives the first tires at both ends to rotate through the steering axle through the universal joint transmission, thereby ensuring the driving of the bridge-building machine body, and at the same time, extends the first steering oil cylinder on one side, and the first steering oil cylinder on the other side contracts synchronously, thereby driving the longitudinal tie rod to pull the steering axle to rotate, wherein the overall rotation angle is small, and the steering axle and the driving support body are connected and the steering is normal at the same time through the elastic deformation of the rubber sleeve itself, and at the same time, the second steering oil cylinder connected to one side of the steering axle housing through the second connecting ear works, and the second steering oil cylinder on one side extends while the second steering oil cylinder on the other side contracts, and at the same time, the steering stability is ensured by the steering tie rod, and then the steering operation of the bridge-building machine body is completed in coordination with the steering of the driving support body;

[0019] The drive module and steering module are accessories of the bridge-building machine. When the bridge-building machine needs to be relocated, the drive module and steering module can be installed on the main beam of the bridge-building machine to enable the bridge-building machine to relocate on its own without the need for other equipment to cooperate with the relocation. The relocation also does not require a lot of preparation time, saving costs and bringing convenience to bridge construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the installation structure of the bridge erecting machine main body and the driving support body of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation structure of the steering axle of the present invention;

[0023] Figure 3 It is a schematic diagram of the installation structure of the bridge erection machine body and the steering axle housing of the present invention;

[0024] Figure 4 It is a schematic diagram of the exploded structure of the steering axle housing of the present invention.

[0025] In the figure: 1. bridge-building machine body; 2. driving support body; 3. first lifting hydraulic cylinder; 4. steering axle; 5. first steering oil cylinder; 6. rubber sleeve; 7. fixing seat; 8. hinge pin; 9. first tire; 10. universal joint; 11. driving motor; 12. longitudinal tie rod; 13. second lifting hydraulic cylinder; 14. steering axle housing; 15. first connecting ear; 16. second tire; 17. second connecting ear; 18. second steering oil cylinder; 19. steering tie rod; 20. steering knuckle; 21. first bearing; 22. kingpin; 23. second bearing; 24. third bearing; 25. wheel hub. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-4 As shown, a driving and steering device for the self-transfer of a bridge erecting machine comprises a bridge erecting machine body 1, a driving support body 2, a steering bridge 4, a universal joint 10, a driving motor 11, a longitudinal tie rod 12 and a steering bridge housing 14, first lifting hydraulic cylinders 3 are rotatably installed on both sides of one end of the bridge erecting machine body 1, the telescopic ends of the first lifting hydraulic cylinders 3 on both sides are rotatably installed with the driving support body 2, and the bottom side of one end of the driving support body 2 is rotatably connected with one end of the bridge erecting machine body 1, a steering bridge 4 is installed below the other end of the driving support body 2, a driving motor 11 is installed inside the steering bridge 4, a universal joint 10 is arranged at the center of one side of the steering bridge 4, and the universal joint 10 is connected to the output end of the driving motor 11, first steering oil cylinders 5 are rotatably installed on both sides of the steering bridge 4, the telescopic ends of the first steering oil cylinders 5 on both sides are connected with the longitudinal tie rod 12 through a tie rod pin, a first fixing ear is arranged at the center of the bottom end of the universal joint 10, and the longitudinal tie rod 12 is connected to the first fixing ear through a tie rod pin;

[0028] Second lifting hydraulic cylinders 13 are vertically installed on both sides of the other end of the bridge-building machine body 1, and steering axle housings 14 are installed at the telescopic ends of the second lifting hydraulic cylinders 13 on both sides. Two second connecting ears 17 are symmetrically installed on one side of the steering axle housing 14, and the two second connecting ears 17 are respectively rotatably installed with second steering oil cylinders 18. The telescopic ends of the second steering oil cylinders 18 are rotatably installed with steering knuckles 20, and the steering knuckles 20 are respectively installed at both ends of the steering axle housing 14, and second tires 16 are installed at the outer ends of the two steering knuckles 20. The two second connecting ears 17 are rotatably connected to the two ends of the steering tie rod 19.

[0029] A fixing seat 7 is installed at the top center of the steering bridge 4, and a rubber sleeve 6 is installed inside the fixing seat 7. The steering bridge 4 is connected to the steering bridge 4 through a hinge pin 8 passing through the rubber sleeve 6. When steering, the steering is maintained by the elastic deformation of the rubber sleeve 6.

[0030] First tires 9 are installed at both ends of the steering bridge 4 .

[0031] First connecting ears 15 are installed at both ends of the top of the steering bridge 4. The first connecting ears 15 are connected to the telescopic end of the second lifting hydraulic cylinder 13 to ensure the connection of the second lifting hydraulic cylinder 13.

[0032] Second fixing ears are provided above and below both ends of the steering axle housing 14, the steering knuckle 20 is fixed between the two second fixing ears at the same end, and a first bearing 21 is installed inside the steering knuckle 20. The steering knuckle 20 is rotatably connected to the steering axle housing 14 through the king pin 22 passing through the second fixing ears and the first bearing 21, which is convenient for ensuring the installation of the steering knuckle 20 and facilitating the overall coordinated use.

[0033] A second bearing 23 and a third bearing 24 are respectively mounted on the outer side of one end of the steering knuckle 20, and a wheel hub 25 is installed on the outer side of the second bearing 23 and the third bearing 24. A second tire 16 is fixedly installed on the outer side of the wheel hub 25 to ensure the normal rotation of the second tire 16. Dust rings are installed on the outer sides of the two wheel hubs 25 to play a dust-proof role.

[0034] The second steering cylinder 18 and the steering tie rod 19 are all rotatably connected to the steering knuckle 20 via a latch. The second connecting ear 17 and the second steering cylinder 18 are rotatably connected via a latch, so that the steering operation can be realized by extending and retracting the second steering cylinder 18 .

[0035] The operation steps of the driving steering device are as follows:

[0036] Step 1: When the bridge erection machine is working, the first lifting hydraulic cylinder 3 at one end of the bridge erection machine body 1 is extended to drive the driving support body 2 to rotate counterclockwise on the bridge erection machine body 1, and the height of one end of the bridge erection machine body 1 is increased by the inclined driving support body 2. At the same time, the second lifting hydraulic cylinder 13 at the other end of the bridge erection machine body 1 is extended to drive the other end of the bridge erection machine body 1 to rise, and the bridge erection machine body 1 is in working state;

[0037] Step 2: The driving motor 11 is driven to rotate, and the transmission is transmitted through the universal joint 10, and then the first tires 9 at both ends are driven to rotate through the steering bridge 4, so as to ensure the driving of the bridge erection machine body 1. At the same time, the first steering cylinder 5 on one side is extended, and the first steering cylinder 5 on the other side is contracted synchronously, thereby driving the longitudinal tie rod 12 to pull the steering bridge 4 to rotate, wherein the overall rotation angle is small, and the elastic deformation of the rubber sleeve 6 itself ensures that the steering bridge 4 and the driving support body 2 are connected and the steering is normal;

[0038] Step three: At the same time, the second steering cylinder 18 connected to one side of the steering bridge housing 14 through the second connecting ear 17 works. The second steering cylinder 18 on one side extends while the second steering cylinder 18 on the other side contracts. At the same time, the steering stability is ensured by the steering tie rod 19, and then the steering operation of the bridge crane body 1 is completed in coordination with the steering of the driving support body 2.

[0039] The present invention adopts reasonable structural design, through the extension of the first lifting hydraulic cylinder 3 at one end of the bridge-building machine body 1, the driving support body 2 is driven to rotate counterclockwise on the bridge-building machine body 1, the height of one end of the bridge-building machine body 1 is increased by the inclined driving support body 2, and at the same time, the second lifting hydraulic cylinder 13 at the other end of the bridge-building machine body 1 is extended to drive the other end of the bridge-building machine body 1 to rise, the bridge-building machine body 1 is adjusted to a working state, the driving motor 11 is driven to rotate, and the transmission is transmitted through the universal joint 10, and then the first tires 9 at both ends are driven to rotate through the steering bridge 4, so as to ensure the driving of the bridge-building machine body 1, and at the same time, the first The steering cylinder 5 is extended, and the first steering cylinder 5 on the other side is contracted synchronously, thereby driving the longitudinal tie rod 12 to pull the steering axle 4 to rotate, wherein the overall rotation angle is small, and the steering axle 4 is connected to the driving support body 2 through the elastic deformation of the rubber sleeve 6 itself to ensure normal steering, and at the same time, the second steering cylinder 18 connected to one side of the steering axle housing 14 through the second connecting ear 17 is working, and the second steering cylinder 18 on one side is extended while the second steering cylinder 18 on the other side is contracted, and at the same time, the steering is stable through the steering tie rod 19, and then the steering operation of the bridge erection machine body 1 is completed in coordination with the steering of the driving support body 2;

[0040] The drive module and steering module are accessories of the bridge-building machine. When the bridge-building machine needs to be relocated, the drive module and steering module can be installed on the main beam of the bridge-building machine to enable the bridge-building machine to relocate on its own without the need for other equipment to cooperate with the relocation. The relocation also does not require a lot of preparation time, saving costs and bringing convenience to bridge construction.

[0041] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A driving and steering device for the self-transfer of a bridge erecting machine, characterized in that: The invention comprises a bridge erection machine body (1), a driving support body (2), a steering axle (4), a universal joint (10), a driving motor (11), a longitudinal tie rod (12) and a steering axle housing (14), wherein a first lifting hydraulic cylinder (3) is rotatably mounted on both sides of one end of the bridge erection machine body (1), a driving support body (2) is rotatably mounted on the telescopic ends of the first lifting hydraulic cylinders (3) on both sides, and the bottom side of one end of the driving support body (2) is rotatably connected to one end of the bridge erection machine body (1), and a steering axle (4) is mounted below the other end of the driving support body (2). ), a driving motor (11) is installed inside the steering bridge (4), a universal joint (10) is arranged at the center of one side of the steering bridge (4), and the universal joint (10) is connected to the output end of the driving motor (11), first steering cylinders (5) are rotatably installed on both sides of the driving support body (2), and the telescopic ends of the first steering cylinders (5) on both sides are connected to longitudinal tie rods (12) through tie rod pins, and a first fixing ear is arranged at the center of the bottom end of the steering bridge (4), and the longitudinal tie rod (12) is connected to the first fixing ear through a tie rod pin; Second lifting hydraulic cylinders (13) are vertically installed on both sides of the other end of the bridge-building machine body (1), and the telescopic ends of the second lifting hydraulic cylinders (13) on both sides are installed with steering axle housings (14). Two second connecting ears (17) are symmetrically installed on one side of the steering axle housing (14), and the two second connecting ears (17) are respectively rotatably installed with second steering oil cylinders (18). The telescopic ends of the second steering oil cylinders (18) are both rotatably installed with steering knuckles (20), and the steering knuckles (20) are respectively installed at both ends of the steering axle housing (14). Second tires (16) are installed at the outer ends of the two steering knuckles (20), and the two steering knuckles (20) are rotatably connected to the two ends of the steering tie rod (19).

2. The driving and steering device for the self-transfer of a bridge erecting machine according to claim 1, characterized in that: A fixing seat (7) is installed at the center of the top end of the steering bridge (4), a rubber sleeve (6) is installed inside the fixing seat (7), and the steering bridge (4) is connected to the driving support body (2) via a hinge pin shaft (8) passing through the rubber sleeve (6).

3. The driving and steering device for the self-transfer of a bridge erecting machine according to claim 1, characterized in that: First tires (9) are installed at both ends of the steering bridge (4).

4. The driving and steering device for the self-transfer of a bridge erecting machine according to claim 1, characterized in that: First connecting ears (15) are installed at both ends of the top of the steering axle housing (14), and the first connecting ears (15) are connected to the telescopic end of the second lifting hydraulic cylinder (13).

5. The driving and steering device for the self-transfer of a bridge erecting machine according to claim 1, characterized in that: Second fixing ears are arranged above and below both ends of the steering axle housing (14); the steering knuckle (20) is fixed between the two second fixing ears at the same end, and a first bearing (21) is installed inside the steering knuckle (20); the steering knuckle (20) is rotatably connected to the steering axle housing (14) via a king pin (22) passing through the second fixing ears and the first bearing (21).

6. The driving and steering device for the self-transfer of a bridge erecting machine according to claim 1, characterized in that: A second bearing (23) and a third bearing (24) are respectively mounted on the outer side of one end of the steering knuckle (20), and a wheel hub (25) is mounted on the outer side of the second bearing (23) and the third bearing (24), a second tire (16) is fixedly mounted on the outer side of the wheel hub (25), and dust rings are mounted on the outer sides of the two wheel hubs (25).

7. The driving and steering device for the self-transfer of a bridge erecting machine according to claim 1, characterized in that: The second steering oil cylinder (18) and the steering tie rod (19) are all rotatably connected to the steering knuckle (20) via a latch, and the second connecting ear (17) and the second steering oil cylinder (18) are rotatably connected via a latch.

8. The driving and steering device for the self-transfer of a bridge erecting machine according to claim 2 is characterized in that ,The operation steps of the driving steering device are as follows: Step 1: When the bridge erection machine is working, the first lifting hydraulic cylinder (3) at one end of the bridge erection machine body (1) is extended to drive the driving support body (2) to rotate counterclockwise on the bridge erection machine body (1), and the height of one end of the bridge erection machine body (1) is increased by the inclined driving support body (2). At the same time, the second lifting hydraulic cylinder (13) at the other end of the bridge erection machine body (1) is extended to drive the other end of the bridge erection machine body (1) to rise, and the bridge erection machine body (1) is in working state; Step 2: The driving motor (11) is driven to rotate, and the transmission is transmitted through the universal joint (10), and then the first tires (9) at both ends are driven to rotate through the steering bridge (4), thereby ensuring the driving of the bridge erection machine body (1). At the same time, the first steering cylinder (5) on one side is extended, and the first steering cylinder (5) on the other side is contracted synchronously, thereby driving the longitudinal tie rod (12) to pull the steering bridge (4) to rotate, wherein the overall rotation angle is relatively small, and the elastic deformation of the rubber sleeve (6) itself ensures that the steering bridge (4) and the driving support body (2) are connected and the steering is normal; Step three: At the same time, the second steering cylinder (18) connected to one side of the steering bridge housing (14) through the second connecting ear (17) works, and the second steering cylinder (18) on one side extends while the second steering cylinder (18) on the other side contracts. At the same time, the steering stability is ensured by the steering tie rod (19), and then the steering operation of the bridge erection machine body (1) is completed in coordination with the steering of the driving support body (2).

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