Transmission platform of lifting platform car

Abstract

The utility model relates to a lifting platform truck conveying platform which comprises a conveying frame table and a fixing frame plate, the fixing frame plate is installed at the top of a lifting frame of a lifting platform truck, a shaft rod vertically extending upwards is rotatably installed on the upper surface of the fixing frame plate, the conveying frame table is fixedly installed at the top end of the shaft rod, and a driving mechanism is arranged on the side, located on the shaft rod, of the fixing frame plate. The driving mechanism is used for driving the shaft rod to rotate so as to adjust the conveying direction of the conveying stand, and supporting arms are arranged at the bottom of the conveying stand around the shaft rod in an annular array mode. The driving mechanism works to drive the shaft rod to rotate, then the conveying stand can be driven to rotate, angle adjustment of the conveying direction can be achieved without steering adjustment of the moving trolley, the situation that the conveying direction cannot be adjusted due to the fact that the moving trolley rotates under the limitation of a site is avoided, and the conveying device can adapt to different use scenes. And by combining with the steering adjusting function of the mobile vehicle, the functionality is further increased, the structural layout is reasonable, and the usability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platform vehicles, in particular to a transmission platform of a lifting platform vehicle. Background Art

[0002] A lift truck is a cargo vehicle that can move vertically and horizontally. It is usually used to lift and transport goods in warehouses, factories or other places. These vehicles are usually equipped with a transfer platform. The lift truck is raised and lowered by a hydraulic system or an electric motor to achieve the purpose of vertical transportation of goods, and can drive the goods to be transported horizontally through the transfer platform.

[0003] However, the conveying direction of the transmission platform of the traditional lifting platform vehicle cannot be adjusted. In the actual cargo transportation process, the cargo transportation direction can only be adjusted by steering the mobile vehicle at the bottom, which is rather troublesome. Especially when the mobile vehicle is difficult to steer due to site limitations, the cargo transportation direction cannot be adjusted, which makes it difficult to meet actual usage needs. Utility Model Content

[0004] The utility model aims to provide a lifting platform vehicle transmission platform with adjustable cargo conveying direction, which effectively solves the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0006] The transmission platform of the lifting platform vehicle includes a conveying frame and a fixed frame plate. The fixed frame plate is installed on the top of the lifting frame of the lifting platform vehicle. A shaft rod extending vertically upward is rotatably installed on the upper surface of the fixed frame plate. The conveying frame is fixedly installed on the top of the shaft rod. A driving mechanism is provided on the fixed frame plate on one side of the shaft rod. The driving mechanism is used to drive the shaft rod to rotate so as to adjust the conveying direction of the conveying frame. Support arms are arranged in a ring-shaped array around the shaft rod at the bottom of the conveying frame. The top of the support arm is fixed to the bottom of the conveying frame, and the bottom end is slidably fitted with the fixed frame plate.

[0007] It can be seen that the drive mechanism drives the shaft rod to rotate, and then drives the conveying frame to rotate. When the mobile vehicle does not need to perform steering adjustment, the angle adjustment of the conveying direction can be achieved, thereby avoiding the situation where the conveying direction cannot be adjusted due to site restrictions on the rotation of the mobile vehicle, and can cope with different usage scenarios. In addition, combined with the steering adjustment function of the mobile vehicle, the functionality is further increased, the structural layout is reasonable, and the usability is high. In addition, by installing a support arm at the bottom of the conveying frame, and the support arm follows the rotation when the conveying frame rotates, the bottom of the support arm slides and fits with the fixed frame plate, which can provide stable support for the conveying frame. At the same time, the support arms are arranged in a ring-shaped array around the shaft rod, which can provide a ring-shaped multi-point support for the conveying frame, and the support effect is better, ensuring that the conveying frame can withstand heavier goods, thereby improving the stability during cargo transportation.

[0008] Furthermore, the driving mechanism includes a driving motor, a worm and a worm wheel. A fixed seat is fixed on the upper surface of the fixed frame plate, and the driving motor is fixedly installed on the fixed seat. A pair of brackets are fixed on the upper surface of the fixed frame plate. The worm is rotatably installed on the two brackets, and one end is fixedly connected to the conveying shaft of the worm. The worm wheel is fixedly sleeved on the shaft and engages with the worm accordingly.

[0009] By driving the motor, its conveying shaft can drive the worm to rotate, and the rotating worm can engage the driving shaft and drive the conveying frame to rotate, providing a stable drive for adjusting the conveying direction. In addition, the one-way driving effect of the worm and worm wheel can achieve a self-locking effect, avoiding the conveying frame from rotating at will when there is no need to adjust the conveying direction, thereby ensuring the stability of the conveying frame.

[0010] Furthermore, a mounting seat is provided on the conveying frame, an inner cavity is provided in the mounting seat, and a circular receiving groove is provided on the top, a guide hole penetrating the circular receiving groove is provided on the top wall of the inner cavity, a driving motor is fixed on the inner bottom wall of the inner cavity, a mounting plate is fixed on the output shaft of the driving motor, an electric push cylinder is vertically fixed on the upper surface of the mounting plate, a guide rod is vertically fixed to the end of the telescopic rod of the electric push cylinder, a tray is provided in the circular receiving groove, the guide rod passes through the guide hole and extends into the circular receiving groove, and is fixed to the bottom of the tray.

[0011] When the conveying guide roller transports the goods to the top of the pallet, the electric push cylinder extends to push the guide rod upward, and then pushes the pallet upward to contact the bottom of the goods until the goods are lifted off the conveying guide roller. Then the drive motor works to drive the mounting plate, electric push cylinder and guide rod to rotate, and then drives the goods above the pallet to rotate, realizing the steering adjustment of the goods, meeting the need to adjust the direction when loading the goods, and further improving the practicality of the device.

[0012] Furthermore, an annular groove is provided on the upper surface of the fixing frame plate, and a spherical groove which penetrates the outside is provided at the bottom of the supporting arm. Rolling balls are installed in the spherical grooves, and the rolling balls are exposed from the spherical grooves and fit into the annular grooves.

[0013] When the support arm rotates with the conveyor frame, the ball can roll, converting the plane friction between the support arm and the fixed frame plate into rolling friction, ensuring that the support arm and the fixed frame plate move relatively more smoothly.

[0014] Furthermore, the arrangement height of the mounting seat is lower than the conveying guide rollers arranged on the conveying frame, and when the tray is stored in the circular storage groove, the upper end surface of the tray is not higher than the upper end surface of the mounting seat.

[0015] The mounting base is lower than the conveying guide roller to avoid affecting the normal conveying of goods. The pallet is lower than the mounting base when stored to also avoid affecting the conveying of goods.

[0016] Furthermore, the upper surface of the tray is provided with anti-slip grooves.

[0017] By providing anti-slip grooves on the pallet, the friction between the cargo and the pallet can be increased when the cargo support is raised and rotated to adjust, thereby preventing the cargo from being offset or relatively shifted, and improving the stability of cargo placement.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0019] 1. The utility model drives the shaft rod to rotate through the driving mechanism, and then drives the conveying frame to rotate. When the mobile vehicle does not need to be turned, the angle adjustment of the conveying direction can be achieved, thereby avoiding the situation where the conveying direction cannot be adjusted due to site restrictions on the rotation of the mobile vehicle. It can cope with different usage scenarios. In addition, combined with the steering adjustment function of the mobile vehicle, the functionality is further increased, the structural layout is reasonable, and the usability is high.

[0020] 2. The utility model installs a support arm at the bottom of the conveying frame, and when the conveying frame rotates, the support arm rotates accordingly, and the bottom of the support arm slides and fits with the fixed frame plate to provide stable support for the conveying frame. At the same time, the support arms are arranged in a ring-shaped array around the shaft rod, which can provide a ring-shaped multi-point support for the conveying frame, with a better support effect, ensuring that the conveying frame can withstand heavier goods, thereby improving the stability of goods during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic cross-sectional view of a local structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the mounting seat in the utility model;

[0024] Figure 4 for Figure 2 A schematic diagram of the enlarged structure in the middle.

[0025] In the figure: 1. conveying frame; 2. fixed frame plate; 21. annular groove; 3. shaft rod; 4. driving mechanism; 41. driving motor; 42. worm; 43. worm wheel; 44. fixing seat; 45. bracket; 6. mounting seat; 601. inner cavity; 602. circular storage groove; 603. guide hole; 61. tray; 62. driving motor; 63. mounting plate; 64. electric push cylinder; 65. guide rod; 7. support arm; 71. spherical groove; 72. rolling ball. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 4 The utility model provides a lifting platform vehicle transmission platform, including a conveying frame 1 and a fixed frame plate 2. The conveying frame 1 is provided with a conveying guide roller for conveying goods and a driving device for driving the conveying guide roller to rotate. The conveying guide roller and the driving device both adopt the existing technology. The specific structure, installation method and working principle are no longer repeated in this application. The fixed frame plate 2 is installed on the top of the lifting frame of the lifting platform vehicle. A shaft rod 3 extending vertically upward is rotatably installed on the upper surface of the fixed frame plate 2. The conveying frame 1 is fixedly installed on the top of the shaft rod 3. A driving mechanism 4 is provided on the fixed frame plate 2 on one side of the shaft rod 3. The driving mechanism 4 is used to drive the shaft rod 3 to rotate so as to adjust the conveying direction of the conveying frame 1. The bottom of the conveying frame 1 is arranged with a support arm 7 in a ring-shaped array around the shaft rod 3. The top of the support arm 7 is fixed to the bottom of the conveying frame 1, and the bottom is slidably fitted with the fixed frame plate 2.

[0028] After the goods are lifted to a suitable position by the lifting platform vehicle, the conveying guide rollers are driven to rotate by the driving device on the conveying frame 1, so that the goods can be conveyed in the horizontal direction. When the conveying direction of the conveying frame 1 needs to be changed, the driving mechanism 4 drives the shaft rod 3 to rotate, and then drives the conveying frame 1 to rotate, so as to adjust the angle of the conveying direction. In addition, a support arm 7 is installed at the bottom of the conveying frame 1, and when the conveying frame 1 rotates, the support arm 7 rotates accordingly, so as to provide stable support for the conveying frame 1. At the same time, the support arms 7 are arranged in a ring-shaped array around the shaft rod 3, so as to provide a ring-shaped multi-point support for the conveying frame 1, and the support effect is better.

[0029] Specifically, the driving mechanism 4 includes a driving motor 41, a worm 42 and a worm wheel 43. A fixed seat 44 is fixed on the upper surface of the fixed frame plate 2. The driving motor 41 is fixedly installed on the fixed seat 44. A pair of brackets 45 are fixed on the upper surface of the fixed frame plate 2. The worm 42 is rotatably installed on the two brackets 45, and one end is fixedly connected to the conveying shaft of the worm 42. The worm wheel 43 is fixedly sleeved on the shaft 3 and meshed with the worm 42. When the driving motor 41 works, its conveying shaft can drive the worm 42 to rotate. The rotating worm 42 can mesh with the driving shaft 3 and drive the conveying frame 1 to rotate, providing a stable drive for adjusting the conveying direction.

[0030] Specifically, a mounting seat 6 is provided on the conveying frame 1, an inner cavity 601 is provided in the mounting seat 6, and a circular receiving groove 602 is provided on the top, a guide hole 603 which penetrates the circular receiving groove 602 is provided on the inner top wall of the inner cavity 601, a driving motor 62 is fixed on the inner bottom wall of the inner cavity 601, a mounting plate 63 is fixed on the output shaft of the driving motor 62, an electric push cylinder 64 is vertically fixed on the upper surface of the mounting plate 63, a guide rod 65 is vertically fixed on the end of the telescopic rod of the electric push cylinder 64, a tray 61 is provided in the circular receiving groove 602, and the guide rod 65 passes through the guide hole 603 and extends to The guide rod 65 is placed in the circular storage groove 602 and fixed to the bottom of the pallet 61. When the conveying guide roller conveys the goods to the top of the pallet 61, the electric push cylinder 64 is extended to push the guide rod 65 upward, thereby pushing the pallet 61 upward to contact the bottom of the goods until the goods are lifted off the conveying guide roller. Then, the driving motor 62 is driven to drive the mounting plate 63, the electric push cylinder 64 and the guide rod 65 to rotate, thereby driving the goods above the pallet 61 to rotate, realizing the steering adjustment of the goods, meeting the need to adjust the direction when loading the goods, and further improving the practicality of the device. After the steering adjustment is completed, the guide rod 65 is retracted to drive the pallet 61 to return to the circular storage groove 602, and the goods can be returned to the conveying guide roller, which is convenient for continuing to transport the goods.

[0031] Specifically, an annular groove 21 is provided on the upper surface of the fixed frame plate 2, and a spherical groove 71 that penetrates the outside is provided at the bottom of the support arm 7. Rolling balls 72 are installed in the spherical grooves 71. The rolling balls 72 are exposed from the spherical grooves 71 and fit into the annular grooves 21. When the support arm 7 rotates with the conveying frame 1, the rolling balls 72 can roll, converting the planar friction between the support arm 7 and the fixed frame plate 2 into rolling friction, thereby ensuring that the support arm 7 and the fixed frame plate 2 move relative to each other more smoothly.

[0032] Specifically, the arrangement height of the mounting seat 6 is lower than the conveying guide rollers provided on the conveying frame 1, so as to avoid affecting the normal conveying of goods. When the pallet 61 is stored in the circular storage groove 602, the upper end surface of the pallet 61 is not higher than the upper end surface of the mounting seat 6, so as to also avoid affecting the conveying of goods.

[0033] Specifically, the upper surface of the pallet 61 is provided with anti-slip grooves, which can increase the friction between the cargo and the pallet 61 when the cargo support is raised and rotated to increase the friction between the cargo and the pallet 61, thereby preventing the cargo from being offset or relatively shifted, and improving the stability of cargo placement.

[0034] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A lifting platform vehicle transmission platform, comprising a conveying frame (1) and a fixed frame plate (2), characterized in that: The fixed frame plate (2) is mounted on the top of the lifting frame of the lifting platform vehicle, and a shaft (3) extending vertically upward is rotatably mounted on the upper surface of the fixed frame plate (2); The conveying frame (1) is fixedly mounted on the top end of the shaft (3), and a driving mechanism (4) is provided on the fixed frame plate (2) at one side of the shaft (3); The driving mechanism (4) is used to drive the shaft (3) to rotate so as to adjust the conveying direction of the conveying frame (1); The bottom of the conveying frame (1) is provided with support arms (7) arranged in a ring-shaped array around the shaft (3); the top end of the support arm (7) is fixed to the bottom of the conveying frame (1), and the bottom end is slidably fitted to the fixed frame plate (2).

2. The lifting platform vehicle transmission platform according to claim 1 is characterized in that: The driving mechanism (4) comprises a driving motor (41), a worm (42) and a worm wheel (43); A fixing seat (44) is fixed on the upper surface of the fixing frame plate (2), and the driving motor (41) is fixedly mounted on the fixing seat (44); A pair of brackets (45) are fixed on the upper surface of the fixed frame plate (2); the worm (42) is rotatably mounted on the two brackets (45), and one end is fixedly connected to the conveying shaft of the worm (42); The worm wheel (43) is fixedly sleeved on the shaft (3) and correspondingly meshes with the worm (42).

3. The transmission platform of the lifting platform vehicle according to claim 1 is characterized in that: The conveying frame (1) is provided with a mounting seat (6), the mounting seat (6) is provided with an inner cavity (601), and a circular receiving groove (602) is provided on the top, and a guide hole (603) is provided on the top wall of the inner cavity (601) and is connected to the circular receiving groove (602); A driving motor (62) is fixed on the inner bottom wall of the inner cavity (601); a mounting plate (63) is fixed on the output shaft of the driving motor (62); an electric push cylinder (64) is vertically fixed on the upper surface of the mounting plate (63); and a guide rod (65) is vertically fixed to the end of the telescopic rod of the electric push cylinder (64); A tray (61) is provided in the circular receiving groove (602), and the guide rod (65) passes through the guide hole (603) and extends into the circular receiving groove (602), and is fixed to the bottom of the tray (61).

4. The lifting platform vehicle transmission platform according to claim 1 is characterized in that: The upper surface of the fixing frame plate (2) is provided with an annular groove (21); The bottom of each support arm (7) is provided with a spherical groove (71) that is in communication with the outside, and each spherical groove (71) is provided with a rolling ball (72); The rolling balls (72) are all exposed from the spherical grooves (71) and are all fitted into the annular grooves (21).

5. The transmission platform of the lifting platform vehicle according to claim 3 is characterized in that: The mounting seat (6) is arranged at a height lower than the conveying guide rollers arranged on the conveying frame (1); When the tray (61) is received in the circular receiving groove (602), the upper end surface of the tray (61) is not higher than the upper end surface of the mounting seat (6).

6. The transmission platform of the lifting platform vehicle according to claim 3 is characterized by: The upper surface of the tray (61) is provided with anti-slip grooves.

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