Template trolley steering control device

Abstract

The utility model discloses a template trolley steering control device, comprising a first trolley bottom beam and a second trolley bottom beam, the ends of the first trolley bottom beam and the second trolley bottom beam are rotatably connected by meshing; the end of the first trolley bottom beam is provided with a matching through hole, the hole wall of the matching through hole is provided with a transmission tooth, a transmission member is movably provided in the matching through hole, and the lower part of the transmission member is provided with at least two rotating gears that mesh with the matching through hole; the end of the second trolley bottom beam is provided with a fixed gear and a driving member, the fixed gear extends into the matching through hole and meshes with the rotating gear, the driving member forms a transmission match with the upper part of the transmission member, and the transmission member rotates under the drive of the driving member. The utility model simplifies the steering structure of the template trolley, reduces the process of rotation control, and improves the convenience and efficiency of steering control; each transmission tooth corresponds to a first-level steering angle, the control of the steering angle is more accurate, and the controllable range of the steering angle is larger.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction equipment, in particular to a template trolley steering control device. Background Art

[0002] Formwork trolleys are often used for concrete pouring in the construction of underground projects such as tunnels and pipe galleries. Due to the large overall weight of the formwork trolley, a truck crane must be used to install and disassemble the formwork trolley, which is time-consuming, inconvenient to construct and has high safety risks. The assembly and disassembly of the formwork trolley has high requirements on the size of the site space. The length of the formwork trolley is relatively long, generally reaching 9 to 12 meters, so its turning radius is large and cannot adapt to the support of curved section formwork and small radius or lateral transfer movement.

[0003] A Chinese utility model patent with announcement number CN216381417U discloses an overall transfer adjustment device for a template trolley, which includes a load-bearing unit, the load-bearing unit includes a longitudinal beam, a plurality of trolley frame columns are evenly arranged on the upper side of the longitudinal beam, a corbel is provided on the outer side of the trolley frame column, a travel adjustment unit is connected to the corbel, a steering support is provided on the travel adjustment unit, and the steering support is used to adjust the steering of the load-bearing unit.

[0004] In the technical solution of the above utility model, the travel adjustment unit drives the load-bearing unit to turn through the steering support. The steering support needs to control the steering angle through the cooperation between the first fixed column and the second fixed column. When adjusting the steering angle, the load-bearing unit must be lifted up by the height adjustment unit first to increase the height of the trolley frame column and the longitudinal beam. The steering angle can only be adjusted after the first fixed column and the second fixed column of the steering support are separated. After the steering angle is adjusted, the load-bearing unit is driven down by the height adjustment unit to make the first fixed column and the second fixed column of the steering support engage and fix together. The template trolley can move after the above steps are completed. Therefore, the technical solution of the utility model takes a long time in the process of adjusting the steering angle of the template trolley, the steering angle cannot be adjusted directly, and the steering control operation is relatively cumbersome. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a steering control device for a pallet truck with a simple mold structure and simple steering angle adjustment.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a template trolley steering control device, including a first trolley bottom beam and a second trolley bottom beam, the ends of the first trolley bottom beam and the second trolley bottom beam are rotatably connected through meshing cooperation; the end of the first trolley bottom beam is provided with a matching through hole, the hole wall of the matching through hole is provided with a transmission tooth, a transmission member is movably arranged in the matching through hole, and the lower part of the transmission member is provided with at least two rotating gears that mesh with the matching through hole; the end of the second trolley bottom beam is provided with a fixed gear and a driving member, the fixed gear extends into the matching through hole and meshes with the rotating gear, the driving member forms a transmission cooperation with the upper part of the transmission member, and the transmission member rotates under the drive of the driving member.

[0007] As an improvement of the above scheme: three rotating gears are provided at the lower part of the transmission member, and the three rotating gears are arranged in an equilateral triangle at the lower part of the transmission member through three connecting shafts, and the rotating gears can be rotatably mounted on the corresponding connecting shafts; the upper part of the transmission member is provided with a stabilizing beam fixedly connected to the connecting shaft, and the stabilizing beam is an equilateral triangle frame structure, and the three connecting shafts are respectively fixed at the three vertex corners of the stabilizing beam.

[0008] As an improvement of the above solution: the driving members are two jacks fixedly arranged on the bottom beam of the second vehicle, the two jacks are arranged side by side and extend horizontally toward the stabilizing beam, and the output ends of the two jacks are against the stabilizing beam.

[0009] As an improvement of the above solution: the three top corners of the stabilizing beam are all rounded.

[0010] As an improvement to the above solution: the axial center distance between adjacent connecting shafts on the stabilizing beam is equal to the axial center distance between the two jacks.

[0011] As an improvement of the above scheme: the end of the second vehicle bottom beam is provided with a connecting groove arranged along the length direction of the second vehicle bottom beam, the fixed gear is fixed in the connecting groove, the matching through hole of the first vehicle bottom beam is located in the connecting groove so that the rotating gear and the fixed gear are meshed and matched, and the fixed gear and the matching through hole are coaxially arranged.

[0012] As an improvement of the above scheme: it also includes a clearance hole set at the end of the bottom beam of the second vehicle, the clearance hole is coaxially arranged with the fixed gear, the top of the fixed gear extends into the clearance hole and is fixedly connected to the bottom beam of the second vehicle through three limit baffles, the three limit baffles are evenly distributed in a ring shape around the fixed gear and divide the clearance hole into three arc gaps; the connecting shaft of the transmission member corresponds one by one to the arc gaps separated by the limit baffles, and is connected to the stabilizing beam after passing through the corresponding arc gaps.

[0013] The beneficial effects of the utility model are as follows: the utility model improves the matching structure between the two bottom beams of the template trolley, meshes the ends of the first trolley bottom beam and the second trolley bottom beam, and uses a transmission member to drive the first trolley bottom beam and the second trolley bottom beam to rotate relative to each other to realize the steering control of the template trolley; the utility model directly controls the rotation of the transmission member through the driving member to drive the two bottom beams to rotate relative to each other, effectively simplifies the steering structure of the template trolley, reduces the process of rotation control, and improves the convenience and efficiency of steering control; in the utility model, the steering angle is controlled by the meshing cooperation of the first trolley bottom beam and the second trolley bottom beam, and the meshing transmission is realized by the mutual cooperation between the transmission teeth on the matching through holes, the rotating gear and the fixed gear. Each transmission tooth corresponds to a first-level steering angle, the control of the steering angle is more precise, and the controllable range of the steering angle is larger, so that the template trolley can effectively cope with the multi-angle and small-radius rapid transition requirements in limited terrain and short-distance movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the first vehicle bottom beam in the utility model;

[0016] Figure 3 It is a structural schematic diagram of the second vehicle bottom beam in the utility model.

[0017] Markings in the figure are: 100 - first vehicle bottom beam, 110 - matching through hole, 200 - second vehicle bottom beam, 210 - fixed gear, 220 - jack, 230 - connecting groove, 240 - clearance hole, 250 - limit baffle, 310 - rotating gear, 320 - connecting shaft, 330 - stabilizing beam. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0019] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "front", "rear", "left", "right", "up", "down", and "inside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] like Figures 1 to 3As shown, the template trolley steering control device disclosed in the utility model includes a first trolley bottom beam 100, a second trolley bottom beam 200, a transmission member and a driving member; wherein the first trolley bottom beam 100 and the second trolley bottom beam 200 are respectively fixedly connected to the front frame and the rear frame of the template trolley, the rotation of the first trolley bottom beam 100 drives the front frame of the template trolley to rotate as a whole, and the rotation of the second trolley bottom beam 200 drives the rear frame of the template trolley to rotate as a whole, and the first trolley bottom beam 100 and the second trolley bottom beam 200 cause relative rotation to achieve the steering of the template trolley; the transmission member cooperates with the driving member, and the driving member is used to drive the transmission member to rotate to drive the first trolley bottom beam 100 and the second trolley bottom beam 200 to rotate relative to each other.

[0021] Specifically, the transmission member used in the present invention is as follows Figure 1 and Figure 2 As shown, at least two rotating gears 310 are provided at the lower part of the transmission member, and the rotating gear 310 is installed on the transmission member through a connecting shaft 320. The rotating gear 310 is sleeved on the connecting shaft 320 so that the rotating gear 310 itself can rotate; at the same time, a matching through hole 110 is provided at the end of the first vehicle bottom beam 100 and is penetrated along the thickness direction of the first vehicle bottom beam 100. Transmission teeth are provided on the inner wall of the matching through hole 110. The rotating gear 310 abuts against the inner wall of the matching through hole 110 to form a meshing fit with the transmission teeth. Then, the rotating transmission member can make the rotating gear 310 form a meshing transmission with the transmission teeth on the inner wall of the matching through hole 110. The driving member is installed on the second trolley bottom beam 200, and the rotation of the transmission member is driven by the driving member; at the same time, a fixed gear 210 is installed at the end of the second trolley bottom beam 200. When the first trolley bottom beam 100 is connected to the second trolley bottom beam 200, the fixed gear 210 extends into the matching through hole 110 of the first trolley bottom beam 100 and is coaxially arranged with the matching through hole 110. The fixed gear 210 forms a meshing match with the rotating gear 310 at the bottom of the transmission member. Through the above structure, the driving member drives the transmission member to rotate, and when the transmission member rotates, it drives the rotating gear 310 at the bottom to rotate together. Due to the meshing match between the rotating gear 310, the fixed gear 210 and the transmission teeth on the matching through hole 110, the first trolley bottom beam 100 rotates relative to the second trolley bottom beam 200, thereby driving the front frame fixedly connected to the first trolley bottom beam 100 to rotate as a whole, thereby realizing the steering of the template trolley. Since the steering angle is controlled by the meshing cooperation between the fixed gear 210 and the rotating gear 310 and between the rotating gear 310 and the transmission teeth on the inner wall of the matching through hole 110 in the utility model, the unit angle of steering is equal to the rotation angle of the rotating gear 310 for one meshing rotation. Therefore, the steering angle can be controlled by adjusting the number of teeth. The more teeth there are, the smaller the rotation angle each time, that is, the higher the accuracy of the steering control.

[0022] In order to improve the stability of steering control, the number of rotating gears 310 is set to three in the utility model, so that the three rotating gears 310 are arranged in an equilateral triangle at the lower part of the transmission member, and correspondingly, the number of connecting shafts 320 is also three. A stabilizing beam 330 is arranged on the upper part of the transmission member, and the stabilizing beam 330 adopts an equilateral triangle frame structure, and the three connecting shafts 320 are fixedly connected at the three vertex angles of the stabilizing beam 330 respectively. By increasing the number of rotating gears 310 and limiting their arrangement, a three-point contact is formed between the transmission member and the matching through hole 110, and the three rotating gears 310 are meshed with the transmission teeth on the inner wall of the matching through hole 110. The acting forces between the transmission member and the matching through hole 110 are more uniform and balanced, and a triangular support effect can be formed, which has better stability.

[0023] The driving member in the utility model has multiple implementation modes, for example, a motor is directly used as the driving member, and the motor is connected to the transmission member to drive the transmission member to rotate; a worm gear transmission mechanism can also be used, and the worm wheel is set on the transmission member, and the rotation of the worm gear drives the worm wheel and the transmission member to rotate together. During the movement of the template trolley, the steering angle is generally not too large, and more often it is a small angle rotation in different directions. Therefore, Figure 1 and Figure 3 As shown, two jacks 220 are provided as driving parts in the utility model. The two jacks 220 are fixed side by side and spaced apart on the second trolley bottom beam 200. The two jacks 220 extend horizontally toward the direction of the stabilizing beam 330 on the first trolley bottom beam 100, and the output ends of the two jacks 220 are against the stabilizing beam 330. The stabilizing beam 330 is driven to rotate by controlling the different ejection distances of the output ends of the two jacks 220, thereby driving the entire transmission part to rotate. The output ends of the two jacks 220 make the stabilizing beam 330 rotate within a certain angle in different directions through different ejection distances, and the steering angle of the template trolley is accurately controlled by the jacks 220.

[0024] Furthermore, the utility model optimizes the structure of the stabilizing beam 330, makes the three top corners of the stabilizing beam 330 rounded, and limits the axial distance between adjacent connecting shafts 320 on the stabilizing beam 330 to be equal to the axial distance between the two jacks 220, so that when the ejection distances of the two jacks 220 are equal, they can accurately rest on the two ends of the same side of the stabilizing beam 330 of the triangular frame structure.

[0025] Specifically, Figure 1 and Figure 3As shown, a connection groove 230 is provided at the end of the second vehicle bottom beam 200 along the length direction of the second vehicle bottom beam 200. The connection groove 230 adopts a U-shaped groove so that the end of the second vehicle bottom beam 200 forms an opening for the end of the first vehicle bottom beam 100 to be inserted, and the fixed gear 210 is fixed in the connection groove 230; the end of the first vehicle bottom beam 100 extends into the connection groove 230, so that the matching through hole 110 is located in the connection groove 230 so that the rotating gear 310 is meshed with the fixed gear 210, and the fixed gear 210 is coaxially arranged with the matching through hole 110. The connection between the first vehicle bottom beam 100 and the second vehicle bottom beam 200 is realized by the matching relationship between the fixed gear 210 and the matching through hole 110, and the rotatable matching between the first vehicle bottom beam 100 and the second vehicle bottom beam 200 is realized by the meshing relationship between the fixed gear 210 and the matching through hole 110.

[0026] Further, in order to achieve the coordination between the stabilizing beam 330 and the jack 220 and to limit the rotation range of the transmission member, the present invention Figure 1 and Figure 3 As shown, the utility model is provided with a clearance hole 240 at the end of the second vehicle bottom beam 200, the clearance hole 240 is coaxially arranged with the fixed gear 210, the top of the fixed gear 210 extends into the clearance hole 240 and is fixedly connected with the second vehicle bottom beam 200 through three limiting baffles 250, the three limiting baffles 250 are evenly arranged in a ring shape around the fixed gear 210 and divide the clearance hole 240 into three arc gaps; the connecting shaft 320 of the transmission member corresponds to the arc gaps separated by the limiting baffles 250 one by one, and passes through the corresponding arc gaps and is connected to the stabilizing beam 330. The three connecting shafts 320 connected to the stabilizing beam 330 pass through the corresponding arc gaps, so that the stabilizing beam 330 is located above the clearance hole 240, and can then be matched with the jack 220. The three arc gaps formed by the three limit baffles 250 in the clearance hole 240 limit the rotation range of the transmission member, and the connecting shaft 320 can only move in the corresponding arc gaps to prevent the transmission member from rotating excessively. A more optimized solution is to make one of the limit baffles 250 in the middle position of the output ends of the two jacks 220, so that the transmission member will not rotate to the ejection range of the jack 220.

Claims

1. The template trolley steering control device is characterized by: The invention comprises a first vehicle bottom beam (100) and a second vehicle bottom beam (200), wherein the ends of the first vehicle bottom beam (100) and the second vehicle bottom beam (200) are rotatably connected by meshing; the end of the first vehicle bottom beam (100) is provided with a matching through hole (110), the hole wall of the matching through hole (110) is provided with transmission teeth, a transmission member is movably arranged in the matching through hole (110), and the lower part of the transmission member is provided with at least two rotating gears (310) which are meshed with the matching through hole (110); the end of the second vehicle bottom beam (200) is provided with a fixed gear (210) and a driving member, the fixed gear (210) extends into the matching through hole (110) and meshes with the rotating gear (310), the driving member forms a transmission match with the upper part of the transmission member, and the transmission member rotates under the drive of the driving member.

2. The template trolley steering control device according to claim 1, characterized in that: The transmission member is provided with three rotating gears (310) at the bottom thereof. The three rotating gears (310) are arranged in an equilateral triangle at the bottom thereof via three connecting shafts (320). The rotating gears (310) can be rotatably sleeved on the corresponding connecting shafts (320). The transmission member is provided with a stabilizing beam (330) fixedly connected to the connecting shafts (320) at the top thereof. The stabilizing beam (330) is an equilateral triangle frame structure. The three connecting shafts (320) are respectively fixed at three vertices of the stabilizing beam (330).

3. The template trolley steering control device according to claim 2, characterized in that: The driving members are two jacks (220) fixedly arranged on the second vehicle bottom beam (200); the two jacks (220) are arranged side by side and extend horizontally toward the stabilizing beam (330); and the output ends of the two jacks (220) abut against the stabilizing beam (330).

4. The template trolley steering control device according to claim 3, characterized in that: The three top corners of the stabilizing beam (330) are all rounded.

5. The template trolley steering control device according to claim 3, characterized in that: The axial center distance between adjacent connecting shafts (320) on the stabilizing beam (330) is equal to the axial center distance between the two jacks (220).

6. The template trolley steering control device according to claim 2, characterized in that: The end of the second vehicle bottom beam (200) is provided with a connecting groove (230) arranged along the length direction of the second vehicle bottom beam (200); the fixed gear (210) is fixed in the connecting groove (230); the matching through hole (110) of the first vehicle bottom beam (100) is located in the connecting groove (230) so that the rotating gear (310) is meshed with the fixed gear (210); and the fixed gear (210) and the matching through hole (110) are coaxially arranged.

7. The template trolley steering control device according to claim 6, characterized in that: It also includes a clearance hole (240) arranged at the end of the second vehicle bottom beam (200), the clearance hole (240) and the fixed gear (210) are coaxially arranged, the top of the fixed gear (210) extends into the clearance hole (240) and is fixedly connected to the second vehicle bottom beam (200) through three limiting baffles (250), the three limiting baffles (250) are evenly arranged in a ring shape around the fixed gear (210) and divide the clearance hole (240) into three arc gaps; the connecting shaft (320) of the transmission member corresponds to the arc gaps separated by the limiting baffles (250) one by one, and passes through the corresponding arc gaps and is connected to the stabilizing beam (330).

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