Lightweight high-speed EMS trolley

Abstract

The application discloses a light high-speed EMS trolley, and relates to the technical field of material transportation, comprising a walking module, a lifting module, a clamp module and a cover shell; the cover shell covers the walking module, the lifting module and the clamp module to form a whole trolley body; wherein the walking module is used for driving the whole trolley body to travel along a straight line or a curve on a track; the clamp module is used for clamping and fixing the material to be transported; and the lifting module is used for driving the clamp module to lift and lower to correspond to the material placing positions of different heights; in the process that the walking wheels travel on the track, walking guide wheels located at the bottom of the driving wheel box and the driven wheel box are attached to the side surface of the track to guide the driving wheel box and the driven wheel box, so that the moving stability of the driving wheel mechanism and the driven wheel mechanism is higher.

Description

Technical Field

[0001] This invention relates to the field of material transportation technology, specifically to a lightweight high-speed EMS trolley. Background Technology

[0002] With faster production speeds and higher production efficiency, there is a growing demand for more efficient material transportation in workshops. In order to save on factory floor space, more and more factories are using overhead trolleys for high-speed EMS material transport.

[0003] In existing technologies, such as the patent document with publication number CN109573830A, a circular high-speed EMS trolley is disclosed. This trolley comprises a walking system, a lifting system, a gripper system, a safety door system, and an electrical control system. The walking system is located above the lifting system, the gripper system is connected below the lifting system, the safety door system is located below the gripper system, and the electrical control system is located on the walking system. This system uses a high-altitude circular track to achieve cross-factory transport. However, in practical applications, when material transport needs to cross equipment or pass through worker access areas, traditional three-dimensional conveyor lines are costly, manual trolley transport is too slow, shuttle cars occupy a large amount of ground space, and using overhead cranes suffers from low efficiency, inaccurate precision, and time-consuming labor costs. Summary of the Invention

[0004] The purpose of this invention is to provide a lightweight, high-speed EMS vehicle to solve the following technical problems:

[0005] When material transportation needs to cross equipment or pass through workers' operating passages, traditional three-dimensional conveyor lines are costly, manual trolley transport is too slow, and shuttle cars occupy a lot of ground space.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A lightweight high-speed EMS trolley includes a walking module, a lifting module, a clamping module, and a housing;

[0008] The cover covers the walking module, lifting module and clamping module to form the vehicle body;

[0009] The walking module is used to drive the entire vehicle body to travel along a straight line or curve on the track;

[0010] The clamping module is used to clamp and secure the materials to be transported;

[0011] The lifting module is used to drive the clamping module to rise and fall to accommodate material placement positions at different heights.

[0012] Preferably, the walking module includes a driving wheel mechanism and a driven wheel mechanism, which are rotatably mounted on the vehicle frame installed in the housing. The driving wheel mechanism includes a driving wheel box, and the driven wheel mechanism includes a driven wheel box.

[0013] Preferably, the driving wheel mechanism and the driven wheel mechanism also include traveling wheels, with the two traveling wheels rotatably arranged in the driving wheel box and the driven wheel box respectively through bearing seats.

[0014] The drive wheel box has a walking motor installed on one side, and the walking motor is connected to the walking wheel through a drive shaft.

[0015] Preferably, both the drive wheel box and the driven wheel box have several sets of guide wheels arranged opposite each other at their bottoms for rolling in contact with the side of the track.

[0016] Preferably, a hydraulic buffer is provided on one side of the vehicle frame and a crash beam is provided on the other side, with the hydraulic buffer and crash beam extending to the outside of the cover respectively.

[0017] Preferably, the lifting module includes two sets of lifting shaft bearing seats arranged opposite each other at the bottom of the vehicle frame, with a lifting shaft rotatably arranged between the two lifting shaft bearing seats, and the lifting shaft is connected to the output end of a lifting motor arranged on one side of the vehicle frame.

[0018] The lifting shaft is equipped with four sets of lifting drums, and each set of lifting drums is wound with a lifting belt. The end of the lifting belt is fixedly connected to the clamp plate through a belt clamping assembly.

[0019] Preferably, the side of the vehicle frame facing the clamp plate has several sets of upper lifting guides, and the side of the clamp plate facing the vehicle frame has several sets of lower lifting guides that are slidably connected to the upper lifting guides.

[0020] Preferably, the fixture module includes a fixture motor, which is fixedly mounted on the fixture plate via a motor frame, and also includes a gripper screw that is rotatably mounted on the bottom of the fixture plate. The gripper screw is fixedly connected to a small synchronous pulley that is rotatably mounted on the fixture plate. The output end of the fixture motor is connected to a large synchronous pulley, and the large synchronous pulley and the small synchronous pulley are connected by a synchronous belt drive.

[0021] Preferably, several sets of clamp fixing flanges are arranged in a circumferential array on the outer side of the screw bearing housing, and clamp hook rods are rotatably arranged on the clamp fixing flanges;

[0022] The screw is spirally fitted with a screw nut, and several sets of movable jaw flanges are fixedly fitted on the screw nut.

[0023] Preferably, a gripper pull rod is rotatably mounted on the gripper movable flange, and the end of the gripper pull rod is rotatably connected to the gripper hook rod through a gripper pin.

[0024] The beneficial effects of this invention are:

[0025] (1) During the process of the traveling wheel of the present invention traveling on the track, the traveling guide wheel located at the bottom of the driving wheel box and the driven wheel box is in contact with the side of the track to guide the traveling wheel box and the driven wheel box, so as to make the driving wheel mechanism and the driven wheel mechanism more stable in movement.

[0026] (2) The present invention provides a hydraulic buffer on the front side of the vehicle frame. When the vehicle is traveling on the track, if it collides with an object in front, the hydraulic buffer will buffer the impact and protect the front side of the vehicle. When the rear of the vehicle is collided, the anti-collision beam will protect the rear side. Both the hydraulic buffer and the anti-collision beam can absorb the energy of the impact and avoid serious damage to the vehicle body. Attached Figure Description

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] Figure 1 This is a structural schematic diagram of a lightweight high-speed EMS vehicle according to the present invention;

[0029] Figure 2 This is a schematic diagram of the walking module in a lightweight high-speed EMS vehicle according to the present invention;

[0030] Figure 3 This is a front view structural schematic diagram of the walking module in a lightweight high-speed EMS vehicle according to the present invention;

[0031] Figure 4 This is a top view structural schematic diagram of the walking module in a lightweight high-speed EMS vehicle according to the present invention;

[0032] Figure 5 This is a structural schematic diagram of the lifting module in a lightweight high-speed EMS trolley according to the present invention;

[0033] Figure 6 This is a front view structural schematic diagram of the lifting module in a lightweight high-speed EMS trolley according to the present invention;

[0034] Figure 7 This is a top view of the lifting module in a lightweight high-speed EMS trolley according to the present invention;

[0035] Figure 8 This is a schematic diagram of the fixture module in a lightweight high-speed EMS trolley according to the present invention;

[0036] Figure 9 This is a front view structural schematic diagram of the clamping module in a lightweight high-speed EMS trolley according to the present invention;

[0037] Figure 10 This is a schematic diagram of the gripper hook rod in a lightweight high-speed EMS trolley according to the present invention;

[0038] Figure 11 This is a front view schematic diagram of the gripper hook rod in a lightweight high-speed EMS trolley according to the present invention.

[0039] In the diagram: 1. Walking module; 2. Lifting module; 3. Fixture module; 4. Cover; 5. Driven wheel box; 6. Vehicle frame; 7. Belt tension detection switch; 8. Fixture plate; 9. Anti-collision rubber plate; 101. Walking motor; 102. Walking wheel; 103. Bearing seat; 104. Drive wheel box; 105. Walking guide wheel; 504. Code scanner; 505. Collector arm; 601. Anti-collision beam; 602. Hydraulic buffer; 603. Slewing flange; 604. Slewing support; 701. Lifting shaft bearing seat; 702. Lifting encoder; 703. Lifting motor; 704. Lifting belt guide pulley; 705. Lifting belt; 706. Lifting position detection bracket; 707. Lifting position proximity switch; 708. Lifting drum; 709. Lifting overtravel switch; 801. Lifting belt guide pulley; 802. Belt clamping assembly; 803. Lifting upper guide; 804. Lifting lower guide shaft; 901. Clamping motor; 902. Clamping encoder; 903. Motor frame; 904. Large synchronous pulley; 905. Synchronous belt; 906. Synchronous belt tensioning assembly; 907. Clamping hook; 908. Lead screw shaft upper cover plate; 909. Small synchronous pulley; 910. Lead screw bearing seat; 911. Clamping jaw fixing flange; 912. Clamping jaw lead screw; 913. Clamping jaw pin; 914. Clamping jaw pull rod; 915. Photoelectric detector; 916. Clamping jaw moving flange; 917. Lead screw nut; 918. Lead screw shaft lower cover plate. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1-2 As shown, the present invention is a lightweight high-speed EMS trolley, including a walking module 1, a lifting module 2, a clamping module 3, and a cover 4;

[0042] Specifically, the cover 4 is used to cover the walking module 1, the lifting module 2 and the clamping module 3 to form the vehicle body;

[0043] Among them, the walking module 1 is used to drive the entire vehicle body to travel along a straight line or curve on the track;

[0044] The clamp module 3 is used to clamp and fix the material to be transported; in this embodiment, the clamp module 3 is used to clamp the tire blank.

[0045] The lifting module 2 is used to drive the clamping module 3 to lift and lower, so as to correspond to the material placement positions at different heights. In actual application, the entire vehicle body is first moved to the top of the material to be transported by the walking module 1. The lifting module 2 drives the clamping module 3 to move towards the material. Then, the clamping module 3 fixes the material. The lifting module 2 is started again to drive the material to be lifted to the specified height. The walking module 1 drives the clamped material to move to the placement point. The lifting module 2 and the clamping module 3 work together to place the material at the placement point.

[0046] The walking module 1 includes a driving wheel mechanism and a driven wheel mechanism. The driving wheel mechanism and the driven wheel mechanism are rotatably mounted on the vehicle frame 6 installed in the cover 4. Specifically, the vehicle frame 6 is provided with a slewing support 604. The driving wheel mechanism includes a driving wheel box 104, and the driven wheel mechanism includes a driven wheel box 5. The driving wheel box 104 and the driven wheel box 5 are rotatably connected to the slewing support 604 through a slewing flange 603.

[0047] Please see Figure 3 The driving wheel mechanism and the driven wheel mechanism also include a traveling wheel 102, with the two traveling wheels 102 rotatably arranged in the driving wheel box 104 and the driven wheel box 5 respectively through the bearing seat 103;

[0048] A walking motor 101 is installed on one side of the drive wheel box 104. The walking motor 101 is connected to the walking wheel 102 through a drive shaft. In actual application, when the walking motor 101 is started, the walking motor 101 drives the walking wheel 102 to walk on the track through the drive shaft.

[0049] It should be noted that several sets of guide wheels 105 are arranged at the bottom of both the drive wheel box 104 and the driven wheel box 5 for rolling in contact with the side of the track. Specifically, as the driving wheel 102 moves on the track, the guide wheels located at the bottom of the drive wheel box 104 and the driven wheel box 5 are in contact with the side of the track to guide the driving wheel box 102 and the driven wheel box 5, thereby improving the stability of the movement of the drive wheel mechanism and the driven wheel mechanism.

[0050] Please see Figure 4 The bottom of the drive wheel box 104 and the driven wheel box 5 is also provided with a current collector arm 505. The current collector arm 505 is used to draw power and communicate from the sliding contact line installed on the side of the track. The bottom of the driven wheel box 5 is also provided with a barcode scanner 504. The barcode scanner 504 is used to scan the barcode strip affixed to the side of the track for positioning the direction of travel.

[0051] As a further embodiment, a hydraulic buffer 602 is provided on one side of the vehicle frame 6, and a crash beam 601 is provided on the other side. The hydraulic buffer 602 and the crash beam 601 extend to the outside of the cover 4. In this embodiment, the hydraulic buffer 602 includes a hydraulic rod installed on one side of the vehicle frame 6, and a buffer spring is provided on the hydraulic rod. The crash beam 601 is made of aluminum alloy or alloy steel profile. Specifically, by providing a hydraulic buffer 602 on the front side of the vehicle frame 6, when the trolley is traveling on the track, when it collides with an object in front, the hydraulic buffer 602 will buffer the impact and protect the front side of the trolley. When the trolley is collided with the rear, the crash beam 601 will protect the rear side. Both the hydraulic buffer 602 and the crash beam 601 can absorb the energy of the impact and prevent serious damage to the vehicle body.

[0052] The bottom of the drive wheel box 104 and the driven wheel box 5 are also provided with wheel box reinforcing rods. The wheel box reinforcing rods are used to improve the strength of the drive wheel box 104 and the driven wheel box 5, to avoid deformation or loosening, and to extend the service life.

[0053] Please see Figure 5 The lifting module 2 includes two sets of lifting shaft bearing seats 701 arranged opposite each other at the bottom of the vehicle frame 6. A lifting shaft is rotatably arranged between the two lifting shaft bearing seats 701. The lifting shaft is connected to the output end of the lifting motor 703 arranged on one side of the vehicle frame 6. Four sets of lifting drums 708 are arranged on the lifting shaft. A lifting belt 705 is wound around each set of lifting drums 708. The end of the lifting belt 705 is fixedly connected to the clamping plate 8 through a belt clamping assembly 802. A lifting belt guide wheel 704 is also provided between the lifting belt 705 and the belt clamping assembly 802. The lifting belt 705 passes around the lifting belt guide wheel 704 and is connected to the belt clamping assembly 802. Specifically, when adjusting the height of the clamping plate 8, the lifting motor 703 is first started to drive the lifting shaft to rotate. During the rotation of the lifting shaft, the lifting drums 708 are driven to rotate synchronously. The lifting drums 708 lift the clamping plate 8 up and down by tightening or releasing the lifting belt 705, thereby realizing the height adjustment of the clamping plate 8.

[0054] The lifting motor 703 is equipped with a lifting encoder 702 at its tail end for positioning the lifting height. In this embodiment, the belt clamping assembly 802 can adjust the length of the lifting belt 705 at its end, thereby adjusting the level of the clamping plate 8 in real time.

[0055] As a further embodiment, the vehicle frame 6 is provided with several sets of upper lifting guides 803 on the side facing the clamping plate 8, and the clamping plate 8 is provided with several sets of lower lifting guides 804 that slide and insert into the upper lifting guides 803 on the side facing the vehicle frame 6. In actual application, when the lifting belt 705 is retracted and lifted to the highest position during the up and down movement of the clamping plate 8, the clamping plate 8 synchronously drives the lower lifting guides 804 to cooperate and insert with the upper lifting guides 803 to ensure the accuracy of the high position. In this embodiment, by arranging the upper lifting guides 803 and the lower lifting guides 804, it is ensured that the clamping plate 8 will not sway back and forth or left and right during the high-speed movement of the trolley, thereby improving the stability of the movement and enabling the trolley to move at a higher speed and acceleration.

[0056] Please see Figure 6 Furthermore, the clamp plate 8 is equipped with a lifting position detection bracket 706, a lifting overtravel limit switch 709, and a lifting position proximity switch 707. Specifically, during the lifting process, the lifting plate detects the height of the lifting position detection bracket 706 by using the lifting overtravel limit switch 709 and the lifting position proximity switch to protect the lifting position and prevent it from being lifted too high and impacting the vehicle frame 6.

[0057] In addition, belt tension detection switches 7 are evenly distributed on one side of each group of lifting drums 708 to detect the tension of the lifting belt 705, so as to prevent the lifting from being unstable when the lifting belt 705 is loose or stuck.

[0058] The fixture module 3 includes a fixture motor 901, which is fixedly mounted on the fixture plate 8 via a motor frame 903. It also includes a gripper screw 912 rotatably mounted on the bottom of the fixture plate 8. The gripper screw 912 is fixedly connected to a small synchronous pulley 909 rotatably mounted on the fixture plate 8. The output end of the fixture motor 901 is connected to a large synchronous pulley 904. The large synchronous pulley 904 and the small synchronous pulley 909 are connected by a synchronous belt 905.

[0059] Please refer to Figures 7-9 The top of the gripper screw 912 is provided with a screw shaft cover plate 908, and the gripper screw 912 is arranged on the clamping plate 8 through the screw bearing seat 910;

[0060] Several sets of clamp fixing flanges 911 are arranged in a circumferential array on the outer side of the screw bearing housing 910, and clamp hook rods 907 are rotatably arranged on the clamp fixing flanges 911.

[0061] A screw nut 917 is spirally arranged on the screw nut 912, and a number of sets of jaw moving flanges 916 are fixedly arranged on the screw nut 917. In one embodiment of this invention, the number of jaw moving flanges 916 is the same as the number of jaw fixed flanges 911.

[0062] Please see Figures 10-11 A gripper pull rod 914 is rotatably mounted on the gripper moving flange 916. The end of the gripper pull rod 914 is rotatably connected to the gripper hook rod 907 via the gripper pin 913. It should be noted that when the clamp motor 901 is started, the clamp motor 901 drives the gripper screw 912 to rotate through the large synchronous pulley 904, the synchronous belt 905, and the small synchronous pulley 909. During the process of moving on the gripper screw 912, the screw nut 917 drives the gripper hook rod 907 to rotate around the gripper fixing flange 911 through the gripper pull rod 914. The end of the gripper hook rod 907 is in an open state. The end of the gripper hook rod 907 is provided with a protrusion for hooking the inner edge of the tire embryo, so as to facilitate the positioning and fixing of the tire embryo.

[0063] As a further embodiment, a clamp encoder 902 is provided on the top of the clamp motor 901. The clamp encoder 902 is used to detect the accurate output position of the clamp motor 901. A photoelectric detector 915 is provided at the end of the gripper hook 907. Specifically, after the tire embryo is hooked, the photoelectric detector 915 is triggered and the tire embryo is detected on the gripper hook 907. Once the signal is lost, it means that the embryo is not clamped or has fallen off. The trolley will then alarm and stop moving to prevent the material from falling and causing an accident.

[0064] The clamp plate 8 is also equipped with a synchronous belt tensioning assembly 906, which is used to adjust the tension of the synchronous belt 905 to ensure the smoothness of the transmission.

[0065] In addition, the bottom of the gripper screw 912 is provided with a screw shaft lower cover plate 918, and anti-collision rubber plate 9 is provided on the screw shaft lower cover plate 918 to prevent the screw nut 917 from hitting the screw shaft lower cover plate 918 and causing damage.

[0066] The working principle of this invention is as follows: The walking motor 101 is started, and the walking motor 101 drives the walking wheel 102 to move on the track via the drive shaft. During the movement of the walking wheel 102 on the track, the walking guide wheels located at the bottom of the drive wheel box 104 and the driven wheel box 5 are in contact with the side of the track to guide the walking wheel box 102 and the driven wheel box 5. When the trolley moves on the track, if it collides with an object in front, the hydraulic buffer 602 will buffer the impact, thus protecting the front of the trolley. When the trolley collides with an object in the rear, the anti-collision beam 601 will protect the rear. When adjusting the height of the clamp plate 8, the lifting motor 703 is first started to drive the lifting shaft to rotate. During the rotation of the lifting shaft... During the process, the lifting drums 708 of each group are driven to rotate synchronously. The lifting drums 708 lift the clamp plate 8 up and down by tightening or releasing the lifting belt 705, thereby realizing the height adjustment of the clamp plate 8. The clamp motor 901 is started. The clamp motor 901 drives the jaw screw 912 to rotate through the large synchronous pulley 904, the synchronous belt 905 and the small synchronous pulley 909. During the process of moving on the jaw screw 912, the screw nut 917 drives the jaw hook 907 to rotate around the jaw fixing flange 911 through the jaw pull rod 914. The end of the jaw hook 907 is in an open state. The end of the jaw hook 907 is provided with a protrusion for hooking the inner edge of the tire embryo to position and fix the tire embryo.

[0067] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0068] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0069] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A lightweight high-speed EMS trolley, comprising a walking module (1), a lifting module (2), a clamping module (3), and a cover (4); Its features are, The cover (4) covers the walking module (1), the lifting module (2) and the clamping module (3) to form the vehicle body; Among them, the walking module (1) is used to drive the entire vehicle body to travel along a straight line or curve on the track; The clamp module (3) is used to clamp and fix the materials to be transported; The lifting module (2) is used to drive the clamping module (3) to lift up and down to correspond to the material placement positions at different heights; The walking module (1) includes a driving wheel mechanism and a driven wheel mechanism, which are rotatably mounted on the vehicle frame (6) installed in the cover (4); the driving wheel mechanism includes a driving wheel box (104), and the driven wheel mechanism includes a driven wheel box (5). The lifting module (2) includes two sets of lifting shaft bearing seats (701) arranged opposite to each other at the bottom of the vehicle frame (6). A lifting shaft is rotatably arranged between the two lifting shaft bearing seats (701). The lifting shaft is connected to the output end of the lifting motor (703) arranged on one side of the vehicle frame (6). Four sets of lifting drums (708) are arranged on the lifting shaft. A lifting belt (705) is wound on each set of lifting drums (708). The end of the lifting belt (705) is fixedly connected to the clamp plate (8) through the belt clamping assembly (802). The fixture module (3) includes a fixture motor (901), which is fixedly mounted on the fixture plate (8) via a motor frame (903); It also includes a gripper screw (912) that is rotatably arranged at the bottom of the clamp plate (8). The gripper screw (912) is fixedly connected to a small synchronous pulley (909) that is rotatably arranged on the clamp plate (8). The output end of the clamp motor (901) is connected to a large synchronous pulley (904). The large synchronous pulley (904) and the small synchronous pulley (909) are connected by a synchronous belt (905).

2. The lightweight high-speed EMS trolley according to claim 1, characterized in that, The driving wheel mechanism and the driven wheel mechanism also include a traveling wheel (102), and the two traveling wheels (102) are rotatably arranged in the driving wheel box (104) and the driven wheel box (5) respectively through bearing seats (103); Among them, a walking motor (101) is installed on one side of the drive wheel box (104), and the walking motor (101) is connected to the walking wheel (102) through the drive shaft.

3. The lightweight high-speed EMS trolley according to claim 1, characterized in that, Both the drive wheel box (104) and the driven wheel box (5) have several sets of guide wheels (105) arranged opposite each other at the bottom for rolling in contact with the side of the track.

4. A lightweight high-speed EMS trolley according to claim 2, characterized in that, A hydraulic buffer (602) is provided on one side of the vehicle frame (6), and a crash beam (601) is provided on the other side. The hydraulic buffer (602) and the crash beam (601) extend to the outside of the cover (4) respectively.

5. A lightweight high-speed EMS trolley according to claim 1, characterized in that, The vehicle frame (6) is provided with several sets of upper lifting guides (803) on the side facing the clamp plate (8), and the clamp plate (8) is provided with several sets of lower lifting guides (804) that slide and insert into the upper lifting guides (803) on the side facing the vehicle frame (6).

6. A lightweight high-speed EMS trolley according to claim 1, characterized in that, The top of the claw screw (912) is provided with a screw shaft cover plate (908). The claw screw (912) is arranged on the clamp plate (8) through the screw bearing seat (910). Several sets of claw fixing flanges (911) are arranged in a circumferential array on the outside of the screw bearing seat (910). Claw hooks (907) are rotatably arranged on the claw fixing flanges (911). The screw rod (912) is spirally provided with a screw nut (917), and several sets of jaw moving flanges (916) are fixedly provided on the screw nut (917).

7. A lightweight high-speed EMS trolley according to claim 6, characterized in that, A gripper pull rod (914) is rotatably mounted on the gripper moving flange (916), and the end of the gripper pull rod (914) is rotatably connected to the gripper hook rod (907) through the gripper pin (913).

Images