A bottom mold trolley longitudinal movement driving device and track changing method thereof

Abstract

The present invention discloses a bottom mold trolley longitudinal drive device, comprising: a frame, a track, and a connecting device, a running device, and a clamping device arranged on the frame; the connecting device is used to connect the bottom mold trolley longitudinal drive device with the bottom mold trolley; the running device is used to drive the bottom mold trolley longitudinal drive device to move; the clamping device includes a driving component, and the clamping device and the track can be clamped or loosened by the driving component, and the clamping device can generate friction with the track as a reaction force of the bottom mold trolley longitudinal drive device when clamped. The present invention has the advantages of compact structure, convenient operation and high stability, and does not require pre-built infrastructure, which improves construction efficiency and solves the problem of failure of existing bottom mold trolley drive motor components due to water ingress in the steaming room. The track changing method of the present invention achieves the effect of convenient, automatic and fast track changing, and there is no need to change the track of the bottom mold trolley longitudinal drive device by hoisting or other means.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge construction machinery, and in particular relates to a bottom mold trolley longitudinal movement driving device and a track changing method thereof. Background Art

[0002] In the early box girder prefabrication production line, winches were often used in the prefabrication yard to provide walking power for the bottom mold trolley for transportation, which occupied a large area and was not conducive to quick, convenient and accurate positioning. With the development, new bottom mold trolleys have emerged, whose power devices are directly arranged at the bottom of the bottom mold trolley, that is, the bottom mold trolley wheel group is directly driven by a motor. However, in actual use, since the bottom mold trolley needs to enter the steaming room, the motor often fails due to water ingress, so a new driving method is needed to enable the bottom mold trolley to complete the longitudinal movement.

[0003] The prior art CN201890282U describes a bidirectional driving beam transport vehicle, including a main vehicle and an auxiliary vehicle, which does not require laying rails on the roadbed, but directly drives the vehicle to transport the beams. However, this method of transporting beams is more troublesome and requires the driver to have high driving skills. In addition, since the beams are often transported before they are completely dry, this method will limit the process of making the beams, so this method still has major defects.

[0004] The beam transport trolley disclosed in the prior art CN204775239U has a driving wheel assembly and a passive wheel assembly. When the reducer works, the output shaft of the reducer drives the driving wheel shaft to rotate through gear transmission, and transmits power to the driving wheel, so that the driving wheel moves along the corresponding track, that is, the bottom mold trolley wheel is driven by electrical equipment to achieve the function of the trolley to move. In actual application of this trolley, the water vapor in the steaming room will cause these electrical equipment to become ineffective due to water ingress. The life of each component is short and the cost of use is high, which often affects the continuity of production and thus the production progress. In addition, before the equipment is used, it is necessary to pre-build infrastructure, pre-buried pipelines, connect electricity, etc., which takes a lot of time and is costly. The same bottom mold requires multiple bottom mold trolleys to carry, the number of bottom molds is large, and the waste rate is high. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a bottom mold trolley longitudinal driving device with a compact structure, convenient operation and high stability, which solves the problem of failure of driving motor components of the bottom mold trolley due to water ingress in the steaming room in the prior art. The present invention also provides a track changing method based on the above bottom mold trolley longitudinal driving device, which achieves the effect of convenient, automatic and fast track changing, and does not need to change the track of the bottom mold trolley longitudinal driving device by hoisting or other methods.

[0006] To achieve the above object, the present invention can adopt the following technical solutions:

[0007] A bottom mold trolley longitudinal driving device comprises: a frame, a track, and a connecting device, a walking device, and a clamping device arranged on the frame;

[0008] The connecting device is used to connect the bottom mold trolley longitudinal movement driving device with the bottom mold trolley;

[0009] The walking device is used to drive the bottom mold trolley longitudinal movement driving device to move;

[0010] The clamping device includes a driving component, and the clamping device and the track can be clamped or loosened through the driving component. When the clamping device is clamped, friction force can be generated with the track as a reaction force of the bottom mold trolley longitudinal movement driving device.

[0011] As a further improvement of the present invention, the clamping device includes a clamping wheel, a connecting rod mechanism and a third driving assembly. The connecting rod mechanism is respectively connected to the clamping wheel and the third driving assembly. Under the drive of the third driving assembly, the connecting rod mechanism expands outward or retracts inward to drive the clamping wheel to loosen or clamp the track.

[0012] As a further improvement of the present invention, a pressure sensor is installed on the clamping device, and the pressure sensor is used to monitor the clamping force applied to the rail by the third drive assembly through the clamping wheel.

[0013] As a further improvement of the present invention, it also includes a lifting device, which includes a fourth drive component, the third drive component is hinged to the frame, the fixed end of the fourth drive component is hinged to the frame, and the output end of the fourth drive component is in contact with the third drive component. Under the drive of the fourth drive component, the third drive component rotates around the hinge point between it and the frame to drive the connecting rod mechanism to lift or lower, thereby realizing the clamping wheel moving away from or close to the track.

[0014] As a further improvement of the present invention, it also includes a track changing device, which includes: a pallet, a sixth drive assembly and a rotating table; the fixed end of the sixth drive assembly is connected to the frame, and a rotating table is provided between the output end of the sixth drive assembly and the pallet; under the drive of the sixth drive assembly, the pallet approaches or moves away from the bottom of the frame, thereby realizing that the longitudinal movement drive device of the bottom mold trolley contacts or moves away from the ground, and the rotating table is used to realize the automatic rotation of the longitudinal movement drive device of the bottom mold trolley, thereby completing the track changing of the longitudinal movement drive device of the bottom mold trolley.

[0015] As a further improvement of the present invention, the connecting rod mechanism includes a long rod, a fastening disk and a hinge seat; the upper end of the long rod is hinged to the fixed end of the third drive assembly through the hinge seat, the lower end of the long rod is hinged to the upper end of the fastening disk, the lower end of the fastening disk is hinged to the output end of the third drive assembly, and the clamping wheel is connected to the fastening disk; under the drive of the third drive assembly, the long rod and the fastening disk cooperate to move to achieve the outward expansion or inward contraction of the connecting rod mechanism, so as to drive the clamping wheel to loosen or clamp the track.

[0016] As a further improvement of the present invention, it also includes a first driving component, which is used to drive the clamping wheel to assist the walking device in driving the bottom mold trolley longitudinal movement driving device to move longitudinally along the track.

[0017] As a further improvement of the present invention, the connecting device includes a fifth drive assembly. When the fifth drive assembly is raised, the connecting device can be connected or contacted with the bottom mold trolley. When the fifth drive assembly is lowered, the connecting device can be separated from the bottom mold trolley.

[0018] As a further improvement of the present invention, the connecting device also includes a support rod, the bottom mold trolley is provided with a groove or a protrusion, and one end of the support rod is hinged to the frame; the support rod is also connected to the output end of the fifth drive component, and under the drive of the fifth drive component, the support rod can be raised or lowered, and further the connection or separation of the support rod and the bottom mold trolley can be realized.

[0019] As a further improvement of the present invention, the walking device includes wheels and a second drive assembly, the wheels are installed at the four corners of the frame, and the wheels are connected to the output end of the second drive assembly. Under the drive of the second drive assembly, the wheels rotate to drive the bottom mold trolley longitudinal movement drive device to move longitudinally along the track.

[0020] As a general technical concept, the present invention also provides a track changing method of the above-mentioned bottom mold trolley longitudinal driving device, comprising the following steps:

[0021] S1, the sixth drive assembly is driven in the forward direction, the tray moves downward to touch the ground accordingly, and the wheels of the bottom mold trolley longitudinal driving device leave the ground;

[0022] S2, the rotating table drives the bottom mold trolley longitudinal driving device to rotate 90 degrees;

[0023] S3, the sixth drive assembly drives in the reverse direction, and the tray moves upward accordingly, so that the wheels of the bottom mold trolley longitudinal driving device touch the ground again;

[0024] S4, move the bottom mold trolley longitudinal driving device to the specified track;

[0025] S5, the sixth driving assembly is driven forward again, the tray moves downward again until it touches the ground, and the wheels of the bottom mold trolley longitudinal driving device leave the ground again;

[0026] S6, the rotating table drives the bottom mold trolley longitudinal driving device to rotate back to the original direction;

[0027] S7, the sixth drive assembly drives in the reverse direction again, and the pallet moves upward again, so that the wheels of the bottom mold trolley longitudinal driving device touch the ground again, and the track change is completed.

[0028] Compared with the prior art, the advantages of the present invention are:

[0029] 1. The bottom mold trolley longitudinal driving device of the present invention is provided with a traveling device, a clamping device and a connecting device. The bottom mold trolley and the bottom mold trolley longitudinal driving device are connected by the connecting device, and then the bottom mold trolley longitudinal driving device can drive the bottom mold trolley to move by driving the traveling device. Furthermore, the clamping device is driven by the driving assembly of the clamping device to clamp or press against the track, so that the bottom mold trolley longitudinal driving device and the track can generate friction as a reaction force for its advancement. When the bottom mold trolley is overloaded, it can effectively solve the problem that the bottom mold trolley longitudinal driving device cannot move forward due to insufficient friction. In addition, when it is necessary to move the bottom mold trolley, the bottom mold trolley longitudinal movement driving device can be connected to the bottom mold trolley through a connecting device. After the walking device transports the bottom mold trolley to the designated steaming room, the connection of the connecting device is released and the bottom mold trolley is separated from the bottom mold trolley longitudinal movement device. Then, the bottom mold trolley longitudinal movement device is driven out of the steaming room. By arranging the driving device in the walking device, the problem of the bottom mold trolley driving device failing due to water ingress into the steaming room in the prior art is effectively solved, the service life of the driving device is significantly improved, and the continuity of production is ensured.

[0030] 2. The longitudinal drive device of the bottom mold trolley in the preferred example of the present invention forms a track changing device through a pallet, a sixth drive assembly and a rotating table. With the cooperation of the sixth drive assembly and the pallet, the longitudinal drive device of the bottom mold trolley is able to contact or move away from the ground, and then the rotation of the rotating table is used to realize automatic rotation of the longitudinal drive device of the bottom mold trolley. The setting of the track changing device realizes the quick and reliable track changing of the longitudinal drive device of the bottom mold trolley, and is conducive to simplifying the process of the track changing operation, thereby improving the utilization rate and production efficiency of the longitudinal drive device of the bottom mold trolley.

[0031] 3. The bottom mold trolley longitudinal drive device in the preferred example of the present invention monitors the pressure changes output by the third drive component in real time through the pressure sensor arranged on the clamping device, thereby ensuring reliable contact between the clamping wheel and the track, and improving the positioning accuracy of the bottom mold trolley longitudinal drive device and the bottom mold trolley on the track. Furthermore, the clamping wheel adopts a rubber wheel, which greatly increases the friction coefficient between the clamping wheel and the track, effectively increases the friction force under the same clamping force, and improves the reliability of the bottom mold trolley longitudinal drive device.

[0032] 4. The longitudinal shift drive device of the bottom mold trolley in the preferred example of the present invention lifts the longitudinal shift drive device of the bottom mold trolley off the ground through the positive cooperation between the driving assembly and the pallet, and the longitudinal shift drive device of the bottom mold trolley is rotated 90° on the basis of the original direction under the drive of the rotating table, and then the longitudinal shift drive device of the bottom mold trolley is lowered to re-contact the ground through the reverse cooperation between the driving assembly and the pallet, and the longitudinal shift drive device of the bottom mold trolley is moved to the designated track, the driving assembly and the pallet are positively cooperated again to lift the longitudinal shift drive device of the bottom mold trolley off the ground again, the rotating table rotates the longitudinal shift drive device of the bottom mold trolley back to the original direction, the driving assembly and the pallet are reversely cooperated again to lower the longitudinal shift drive device of the bottom mold trolley to re-contact the ground, and the track change of the longitudinal shift drive device of the bottom mold trolley is completed, and the method of reversing and moving horizontally to the designated track and then reversing again is adopted, the effect of stable and reliable track change is achieved quickly and conveniently, while also avoiding the safety hazards caused by the hoisting method for track change, thereby improving the efficiency of track change as well as the safety of track change. The bottom mold trolley longitudinal moving drive device can work on other tracks after completing the track change, which broadens the application scope of the bottom mold trolley longitudinal moving drive device and improves the utilization rate of the bottom mold trolley longitudinal moving drive device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the top view of the structural principle of the longitudinal movement driving device of the bottom mold trolley in the specific embodiment 1 of the present invention;

[0034] Figure 2 It is a schematic diagram of the main structural principle of the bottom mold trolley longitudinal movement driving device in the specific embodiment 1 of the present invention;

[0035] Figure 3 Schematic diagram of the working state principle of the bottom mold trolley longitudinal driving device in the first specific embodiment of the present invention, wherein: Figure 3 (a) is a diagram showing the state of the longitudinal drive device being lifted off the ground. Figure 3 (b) is a diagram showing the state when the longitudinal drive device is moved down to re-contact the ground.

[0036] Figure 4 It is a schematic diagram of the connection structure principle between the longitudinal drive device and the bottom mold trolley in the specific embodiment 1 of the present invention.

[0037] Figure 5 The present invention is a schematic diagram of the process of track changing of the longitudinal driving device of the bottom mold trolley.

[0038] Legend: 1. Wheel; 2. Track; 3. Clamping wheel; 31. Pressure sensor; 4. First drive assembly; 6. Long rod; 7. Fastening plate; 8. Hinge seat; 10. Second drive assembly; 11. Limit block; 12. Support rod; 13. Third drive assembly; 14. Fourth drive assembly; 15. Fifth drive assembly; 16. Pallet; 17. Sixth drive assembly; 18. Rotating table; 19. Bottom mold trolley; 20. Bottom mold trolley wheel; 100. Frame. DETAILED DESCRIPTION

[0039] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0040] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0042] Example 1

[0043] like Figures 1 to 4As shown, the longitudinal drive device of the bottom mold trolley of the present invention includes: a frame 100, a track, and a traveling device, a clamping device, a lifting device and a connecting device arranged on the frame 100, the connecting device is used to connect the longitudinal drive device of the bottom mold trolley with the bottom mold trolley, the traveling device is used to realize the longitudinal movement of the longitudinal drive device of the bottom mold trolley, and then drive the bottom mold trolley 19 to move longitudinally on the track 2; the lifting device is used to lift or lower the clamping device, and make the clamping device leave or approach the track; the clamping device includes a driving assembly, and the clamping device and the track can be clamped or loosened by the driving assembly without manual operation, and the clamping device can generate friction with the track when clamped as a reaction force of the longitudinal drive device of the bottom mold trolley.

[0044] like Figure 1 and Figure 2 As shown, in this embodiment, the clamping device includes a clamping wheel 3, a connecting rod mechanism, a third driving assembly 13, and a first driving assembly 4. Driven by the first driving assembly 4, the clamping wheel 3 rotates to assist the walking device in driving the bottom mold trolley longitudinal movement driving device to move longitudinally along the track 2. Specifically, the first driving assembly 4 can use a servo motor.

[0045] The connecting rod mechanism is respectively connected to the clamping wheel 3 and the third driving assembly 13, and the connecting rod mechanism includes a long rod 6, a fastening disk 7 and a hinge seat 8. The hinge seat 8 is symmetrically welded on both sides of the third driving assembly 13. The upper end of the long rod 6 is hinged to the fixed end of the third driving assembly 13 through the hinge seat 8, the lower end of the long rod 6 is hinged to the upper end of the fastening disk 7, the lower end of the fastening disk 7 is hinged to the output end of the third driving assembly 13, and the clamping wheel 3 is connected to the fastening disk 7. Driven by the third driving assembly 13, the long rod 6 and the fastening disk 7 cooperate to move to achieve the outward expansion or inward contraction of the connecting rod mechanism, so that the clamping wheel 3 clamps or releases the track 2 accordingly. It can be understood that the longitudinal movement drive device of the bottom mold trolley of this embodiment does not require a pre-built track when in use. There are two ways to position it. One is that the clamping wheels 3 on both sides are in the track 2 and against the track 2, thereby achieving a limiting effect. The other way is as follows Figure 1 The clamping wheel 3 shown in the figure slightly clamps the rail 2 and moves forward.

[0046] Furthermore, the clamping wheel 3 is a rubber wheel, which greatly increases the friction coefficient between the clamping wheel 3 and the rail 2, effectively increases the friction force under the same clamping force, and improves the reliability of the bottom mold trolley longitudinal drive device. It can be understood that in other embodiments, the clamping wheel 3 can be made of other materials that are conducive to increasing friction, and the connecting rod mechanism can also adopt other structures, which can realize that the driving component drives the connecting rod to make the roller contact with the slide rail to increase the friction force.

[0047] Furthermore, a pressure sensor can be installed on the clamping wheel 3 of the clamping device. The pressure sensor is used to monitor in real time the changes in the clamping force applied by the clamping wheel 3 to the track 2, thereby ensuring reliable contact between the clamping wheel 3 and the track 2, thereby improving the accuracy of positioning the longitudinal drive device of the bottom mold trolley and the bottom mold trolley 19 on the track 2; it also ensures that when multiple trolleys work in coordination, the clamping force between the clamping wheel 3 and the track 2 is of moderate size.

[0048] like Figure 2 and Figure 4 As shown, in this embodiment, the lifting device includes a fourth drive assembly 14, the third drive assembly 13 is hinged to the frame, the fixed end of the fourth drive assembly 14 is hinged to the frame 100, and the output end of the fourth drive assembly 14 is in contact with the third drive assembly 13. Under the drive of the fourth drive assembly 14, the third drive assembly 13 rotates around the hinge point with the frame to drive the connecting rod mechanism to lift or lower, thereby realizing that the clamping wheel 3 is away from or close to the track 2. Specifically, the fourth drive assembly 14 is placed obliquely, one end is hinged to the frame 100, and the end close to the third drive assembly 13 is placed on the frame 100, and the output end of the fourth drive assembly 14 is in contact with the surface of the third drive assembly 13 but is not connected.

[0049] like Figure 2 and Figure 3 As shown, in this embodiment, the track changing device includes: a tray 16, a sixth drive assembly 17 and a rotating table 18. The fixed end of the sixth drive assembly 17 is connected to the frame 100, and a rotating table 18 is provided between the output end of the sixth drive assembly 17 and the tray 16. Driven by the sixth drive assembly 17, the tray 16 approaches or moves away from the bottom of the frame 100, thereby realizing that the longitudinal movement drive device of the bottom mold trolley contacts or moves away from the ground, and the rotating table 18 is used to realize the automatic rotation of the longitudinal movement drive device of the bottom mold trolley, thereby completing the track changing of the longitudinal movement drive device of the bottom mold trolley. It can be understood that the track changing device completes the track changing process by lifting the longitudinal movement drive device of the bottom mold trolley and rotating it to the transverse movement state, landing and walking to another designated track, then lifting it again, and rotating it back to the longitudinal movement state. The setting of the track changing device realizes the quick and reliable track changing of the longitudinal movement drive device of the bottom mold trolley, and is conducive to simplifying the process of the track changing operation, thereby improving the utilization rate and production efficiency of the longitudinal movement drive device of the bottom mold trolley.

[0050] like Figure 2 and Figure 4As shown, in this embodiment, the connecting device includes a support rod and a fifth drive assembly 15. When the fifth drive assembly 15 is lifted, the connecting device can be connected or contacted with the bottom mold trolley. When the fifth drive assembly 15 is retracted, the connecting device can be separated from the bottom mold trolley. The support rod is hinged on the frame 100, and the support rod 12 is connected to the output end of the fifth drive assembly 15. Under the drive of the fifth drive assembly 15, the support rod 12 is lifted or lowered to achieve the connection or release of the bottom of the bottom mold trolley 19. In the present embodiment, a limit block 11 is provided at one end of the support rod 12 (the connection end with the bottom of the bottom mold trolley 19), and the support rod 12 is lifted by the fifth driving assembly 15, so that the limit block 11 is further clamped into the groove of the bottom mold trolley 19, so that the connecting device and the bottom mold trolley can be clamped. It can be understood that the connection between the connecting device and the bottom mold trolley can also be achieved in other ways, such as through a hook and a hanging rod, a pin shaft and a seat, or the support rod 12 (no protrusion is required at this time) is directly clamped into the groove of the bottom mold trolley, or the bottom mold trolley 19 is provided with a protrusion and supported by the support rod 12, etc.

[0051] like Figure 1 As shown, in this embodiment, the walking device includes wheels 1 and a second drive assembly 10. The wheels 1 are installed at the four corners of the frame 100, and the wheels 1 are connected to the output end of the second drive assembly 10. Under the drive of the second drive assembly 10, the wheels 1 rotate to drive the bottom mold trolley longitudinal movement drive device to move longitudinally along the track 2. Specifically, the second drive assembly 10 can use a servo motor, which drives two symmetrically arranged wheels 1 at the same time; the servo drive system is simple in principle, environmentally friendly, and can be remotely controlled by PLC to achieve the effect of remote one-button operation. Furthermore, through the cooperation of the clamping wheel 3 and the wheel 1, the movement stability of the bottom mold trolley longitudinal movement drive device under load conditions is improved. In this embodiment, the bottom mold trolley longitudinal movement drive device runs below the bottom mold trolley 19 and inside the track 2, that is, the width of the bottom mold trolley longitudinal movement drive device is less than the width of the track 2, and the bottom mold trolley longitudinal movement drive device is unobstructed in the longitudinal direction, and its longitudinal length can be adjusted according to various working conditions. When the connecting device is connected to the bottom mold trolley, the walking device can drive the bottom mold trolley and the concrete member on the bottom mold trolley to move longitudinally. In actual use, for the coordinated work of multiple vehicles, after the bottom mold trolley longitudinal movement driving device carries the bottom mold trolley 19 to the steaming room, the clamping wheel 3 is separated from the track 2, and the bottom mold trolley longitudinal movement driving device leaves the steaming room.

[0052] In this embodiment, by integrating the walking device, the clamping device, the lifting device and the connecting device on the frame 100, a longitudinal driving device of the bottom mold trolley with a compact structure, easy movement, stability and reliability is obtained.

[0053] In this embodiment, the third drive assembly 13, the fourth drive assembly 14, the fifth drive assembly 15 and the sixth drive assembly 17 are all hydraulic cylinders. In other embodiments, the third drive assembly 13, the fourth drive assembly 14, the fifth drive assembly 15 and the sixth drive assembly 17 can also be pneumatic cylinders.

[0054] The working principle of the bottom mold trolley longitudinal driving device of this embodiment is:

[0055] When the track 2 is to be clamped, the third drive assembly 13 extends, the connecting rod mechanism expands outward accordingly, and the clamping wheel 3 rotates around the connection point to clamp the track 2. The third drive assembly 13 can continue to apply pressure, and the pressure of the clamping wheel 3 on the track 2 continues to increase. The pressure sensor detects the value until the required friction force is met and the pressure is stopped. At this time, the fifth drive assembly 15 extends upward, the support rod 12 rotates and rises around the fulcrum accordingly, and the limit block 11 is inserted into the corresponding groove at the bottom of the bottom mold trolley 19. The fifth drive assembly 15 continues to extend to ensure that the limit block 11 is fully in place. The first drive assembly 4 drives the clamping wheel 3 to rotate, and the bottom mold trolley longitudinal movement drive device can move the bottom mold trolley 19 longitudinally along the track 2.

[0056] After the transport bottom mold trolley 19 reaches the designated position, the fifth drive assembly 15 is retracted, the support rod 12 rotates and lowers around the fulcrum accordingly, the limit block 11 leaves the corresponding groove at the bottom of the bottom mold trolley 19, and the bottom mold trolley longitudinal movement drive device and the bottom mold trolley are separated from each other. The fourth drive assembly 14 extends, and the third drive assembly 13 rotates around the fulcrum under force, and the third drive assembly 13 is raised accordingly until the height is raised to the lower surface of the clamping wheel 3 is higher than the upper surface of the track 2. The third drive assembly 13 is retracted, the connecting rod mechanism is contracted accordingly, and the clamping wheel 3 is recovered into the track 2. At this time, the second drive assembly 10 drives the wheel 1 to rotate, and the bottom mold trolley longitudinal movement drive device quickly moves away from the position.

[0057] Example 2

[0058] like Figure 5 As shown, the track changing method based on the bottom mold trolley longitudinal driving device described in Example 1 of the present invention includes the following steps:

[0059] S1, the sixth drive assembly 17 is driven forward, the tray 16 moves downward to touch the ground, and is further lifted so that the wheel 1 of the bottom mold trolley longitudinal driving device leaves the ground; Figure 3 In this embodiment, the sixth drive assembly 17 can be specifically in the form of a hydraulic cylinder, and the sixth drive assembly 17 is driven in a forward direction to extend the push rod of the hydraulic cylinder, and the sixth drive assembly 17 is driven in a reverse direction to retract the push rod of the hydraulic cylinder.

[0060] S2, the rotating table 18 drives the bottom mold trolley longitudinal driving device to rotate 90 degrees;

[0061] S3, the sixth driving assembly 17 drives in the reverse direction, and the tray 16 moves upward accordingly, so that the wheel 1 of the bottom mold trolley longitudinal driving device contacts the ground again; Figure 3 As shown in (b).

[0062] S4, move the bottom mold trolley longitudinal driving device to the specified track;

[0063] S5, the sixth driving assembly 17 is driven forward again, the tray 16 moves downward again until it touches the ground, and the wheel 1 of the bottom mold trolley longitudinal driving device leaves the ground again;

[0064] S6, the rotating table 18 drives the bottom mold trolley longitudinal driving device to rotate back to the original direction;

[0065] S7, the sixth driving assembly 17 drives in the reverse direction again, and the tray 16 moves upward again, so that the wheel 1 of the bottom mold trolley longitudinal driving device contacts the ground again, and the track change is completed.

[0066] The track changing method of this embodiment achieves the effect of smooth and reliable track changing conveniently and quickly by adopting the method of reversing and moving horizontally to the designated track and then reversing again, while also avoiding the potential safety hazards caused by using a hoisting method for track changing, thereby improving the efficiency of track changing and also improving the safety of track changing.

[0067] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the spirit and technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention still fall within the scope of protection of the technical solutions of the present invention.

Claims

1. A bottom mold trolley longitudinal driving device, characterized in that: include: A frame (100), a track, and a connecting device, a running device, and a clamping device arranged on the frame (100); The connecting device is used to connect the bottom mold trolley longitudinal movement driving device with the bottom mold trolley; The walking device is used to drive the bottom mold trolley longitudinal movement driving device to move; The clamping device includes a driving component, and the clamping device and the track can be clamped or loosened by the driving component. When the clamping device is clamped, friction force can be generated with the track as a reaction force of the bottom mold trolley longitudinal movement driving device; The invention also comprises a track changing device, the track changing device comprising: a tray (16), a sixth drive assembly (17) and a rotating table (18); the fixed end of the sixth drive assembly (17) is connected to the frame (100), and a rotating table (18) is provided between the output end of the sixth drive assembly (17) and the tray (16); under the drive of the sixth drive assembly (17), the tray (16) approaches or moves away from the bottom of the frame (100), thereby achieving the contact or distance between the bottom mold trolley longitudinal movement drive device and the ground, and the rotating table (18) is used to achieve the automatic rotation of the bottom mold trolley longitudinal movement drive device, thereby completing the track changing of the bottom mold trolley longitudinal movement drive device.

2. The bottom mold trolley longitudinal driving device according to claim 1 is characterized in that: The clamping device comprises a clamping wheel (3), a connecting rod mechanism and a third driving assembly (13); the connecting rod mechanism is respectively connected to the clamping wheel (3) and the third driving assembly (13); under the drive of the third driving assembly (13), the connecting rod mechanism expands outward or retracts inward to drive the clamping wheel (3) to loosen or clamp the track (2).

3. The bottom mold trolley longitudinal driving device according to claim 2 is characterized in that: A pressure sensor (31) is installed on the clamping device, and the pressure sensor is used to monitor the clamping force applied to the rail (2) by the third drive assembly (13) through the clamping wheel (3).

4. The bottom mold trolley longitudinal driving device according to claim 2 is characterized in that: The lifting device also includes a fourth drive assembly (14), the third drive assembly (13) is hinged to the frame, the fixed end of the fourth drive assembly (14) is hinged to the frame (100), the output end of the fourth drive assembly (14) is in contact with the third drive assembly (13), and under the drive of the fourth drive assembly (14), the third drive assembly (13) rotates around the hinge point between it and the frame to drive the connecting rod mechanism to be lifted or lowered, thereby realizing that the clamping wheel (3) is moved away from or close to the track (2).

5. The bottom mold trolley longitudinal driving device according to claim 2 is characterized in that: The connecting rod mechanism comprises a long rod (6), a fastening plate (7) and a hinge seat (8); the upper end of the long rod (6) is hinged to the fixed end of the third driving assembly (13) through the hinge seat (8), the lower end of the long rod (6) is hinged to the upper end of the fastening plate (7), the lower end of the fastening plate (7) is hinged to the output end of the third driving assembly (13), and the clamping wheel (3) is connected to the fastening plate (7); under the drive of the third driving assembly (13), the long rod (6) and the fastening plate (7) cooperate to move to realize the outward expansion or inward contraction of the connecting rod mechanism, so as to drive the clamping wheel (3) to loosen or clamp the track (2).

6. The bottom mold trolley longitudinal driving device according to claim 5 is characterized in that: It also comprises a first drive assembly (4), which is used to drive the clamping wheel (3) to assist the walking device in driving the bottom mold trolley longitudinal movement drive device to move longitudinally along the track (2).

7. The bottom mold trolley longitudinal driving device according to claim 1 is characterized in that: The connecting device comprises a fifth drive assembly (15). When the fifth drive assembly (15) is lifted, the connecting device can be connected to or in contact with the bottom mold trolley. When the fifth drive assembly (15) is retracted, the connecting device can be separated from the bottom mold trolley.

8. The bottom mold trolley longitudinal driving device according to claim 7 is characterized in that: The connecting device also includes a support rod (12), the bottom mold trolley is provided with a groove or a protrusion, and one end of the support rod (12) is hinged to the frame (100); the support rod (12) is also connected to the output end of the fifth drive component (15), and under the drive of the fifth drive component (15), the support rod (12) can be raised or lowered, and further the support rod and the bottom mold trolley (19) can be connected or separated.

9. The bottom mold trolley longitudinal driving device according to any one of claims 1 to 8, characterized in that: The walking device comprises wheels (1) and a second drive assembly (10); the wheels (1) are mounted at four corners of the frame (100), and the wheels (1) are connected to the output end of the second drive assembly (10); under the drive of the second drive assembly (10), the wheels (1) rotate to drive the bottom mold trolley longitudinal movement drive device to move longitudinally along the track (2).

10. A track changing method based on the bottom mold trolley longitudinal driving device according to claim 1, characterized in that: The following steps are involved: S1, the sixth drive assembly (17) is driven in the forward direction, the tray (16) accordingly moves downward until it contacts the ground, and the wheels (1) of the bottom mold trolley longitudinal drive device leave the ground; S2, the rotating table (18) drives the bottom mold trolley longitudinal driving device to rotate 90 degrees; S3, the sixth drive assembly (17) performs reverse driving, and the tray (16) moves upward accordingly, so that the wheels (1) of the bottom mold trolley longitudinal driving device contact the ground again; S4, move the bottom mold trolley longitudinal driving device to the specified track; S5, the sixth drive assembly (17) is driven in the forward direction again, the tray (16) moves downward again until it contacts the ground, and the wheels (1) of the bottom mold trolley longitudinal drive device leave the ground again; S6, the rotating table (18) drives the bottom mold trolley longitudinal driving device to rotate back to the original direction; S7, the sixth drive assembly (17) drives in the reverse direction again, and the tray (16) moves upward again, so that the wheels (1) of the bottom mold trolley longitudinal drive device contact the ground again, and the track change is completed.

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