A rail vehicle for transporting a circular workbench

Abstract

The present invention discloses a rail vehicle for transporting a circular workbench, and relates to the technical field of rail vehicles; it comprises a vehicle body, a bull's eye rotatably connected to the upper side of the vehicle body for supporting the workbench, a lifting drive wheel located on the vehicle body, and an anti-rotation mechanism for limiting the relative rotation of the vehicle body and the workbench; an anti-rotation block is provided on the side of the workbench, and a vertical limit groove is provided on the anti-rotation block; the anti-rotation mechanism comprises a limit head with an end portion for embedding into the vertical limit groove, and a driving device for driving the limit head to approach the anti-rotation block; the lifting drive wheel comprises a bracket slidably connected to the vehicle body, a roller rotatably connected to the bracket, a rotating device for rotating the roller, and a sliding device for driving the bracket to slide up and down on the vehicle body. The present invention proposes a rail vehicle for transporting a circular workbench, which has small vibration and good safety during transport.

Description

Technical Field

[0001] The invention belongs to the technical field of rail vehicles, and in particular relates to a rail vehicle for transporting a circular workbench. Background Art

[0002] When processing workpieces, a circular worktable is needed to fix the workpiece.

[0003] These workbenches are very large in size. When the workbenches need to be moved to other workstations, a forklift is often required. However, forklifts cause large vibrations during transportation and are unsafe. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and to provide a rail vehicle for transporting a circular workbench, which has small vibration and good safety during transportation.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A rail vehicle for transporting a circular workbench comprises a vehicle body, a bull's eye rotatably connected to the upper side of the vehicle body for supporting the workbench, a lifting drive wheel located on the vehicle body, and an anti-rotation mechanism for limiting the relative rotation of the vehicle body and the workbench; an anti-rotation block is provided on the side of the workbench, and a vertical limit groove is provided on the anti-rotation block; the anti-rotation mechanism comprises a limit head with an end portion for embedding into the vertical limit groove, and a driving device for driving the limit head to approach the anti-rotation block; the lifting drive wheel comprises a bracket slidably connected to the vehicle body, a roller rotatably connected to the bracket, a rotating device for rotating the roller, and a sliding device for driving the bracket to slide up and down on the vehicle body.

[0007] Initially, the roller is disengaged from the ground, the vehicle body leans against the ground, and the workbench is located above the vehicle body; the limit head enters the vertical limit groove to prevent the workbench and the vehicle body from rotating relative to each other; the sliding device operates, the roller moves downward relative to the vehicle body, and after leaning against the ground, the vehicle body is lifted up, and after the vehicle body approaches the workbench, the workbench is lifted up, and the workbench leans against the bull's eye; the roller rotates, and the workbench moves on the ground; after the workbench moves to the workstation, the limit head leaves the vertical limit groove, the sliding device operates, the roller moves upward relative to the vehicle body, and the vehicle body drives the workbench to move downward, and after the workbench and the workstation are connected, the vehicle body and the workbench are disengaged.

[0008] Preferably, the driving device is a first screw rod having one end rotatably connected to the limit head; the first screw rod is threadedly connected to the vehicle body.

[0009] Preferably, the limiting rod is conical, and the cross section of the vertical limiting groove is V-shaped.

[0010] Preferably, a hand wheel is provided at one end of the first screw away from the limiting head.

[0011] Preferably, the rotating device is a motor; the sliding device includes a second screw rod threadedly connected to the bracket and a second driving machine for rotating the second screw rod.

[0012] The beneficial effects of the present invention are as follows: the present invention provides a rail vehicle for transporting a circular workbench, which has small vibration and good safety during transport, and realizes the functions of controlling the rotation of the roller and the up and down movement of the bracket through different speeds of a single motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of Example 1;

[0014] Figure 2 is a side view of Example 1;

[0015] Figure 3 for Figure 2 A magnified image of point A;

[0016] Figure 4 It is a partial schematic diagram of Example 2;

[0017] Figure 5 It is a partial schematic diagram of Example 3;

[0018] Figure 6 It is a schematic diagram of the transmission groove and the first rotating shaft when they are matched;

[0019] Figure 7 It is a schematic diagram of the cooperation between the first rotating block and the first shifting rod.

[0020] In the figure: body 1, bull's eye 2, anti-rotation block 3, vertical limit groove 4, first screw 7, hand wheel 8, second screw 12, second driving machine 13, slide seat 14, ring gear 15, guide surface 16, driving gear 17, force spring 18, first rotating shaft 19, damping cylinder 20, first rotating block 21, blade 23, second rotating block 24, first shifting rod 25, second shifting rod 26, driving gear 27, driven gear 28, rotating ring 29, first return spring 30, first A slide slot 32, a push rod 33, a first bevel gear 34, a second return spring 35, a winding wheel 37, a pull wire 38, a third rotating shaft 39, a sliding frame 40, a transmission slot 41, a chain 43, a downward pressure spring 44, a fourth rotating shaft 46, a transmission gear 47, a second slide slot 48, a fourth slide slot 49, a rotating rod 50, a connecting bracket 51, a protrusion 52, a long hole 53, a push plate 54, a control rod 55, a bracket 56, a roller 57, an electric hoist 58, and a second rotating shaft 59. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Embodiment 1:

[0023] See also Figures 1 to 3 , a rail vehicle for transporting a circular workbench, comprising a vehicle body 1, a bull's eye 2 rotatably connected to the upper side of the vehicle body 1 for supporting the workbench, a lifting drive wheel located on the vehicle body 1, and an anti-rotation mechanism for limiting the relative rotation of the vehicle body 1 and the workbench;

[0024] An anti-rotation block 3 is provided on the side of the workbench, and a vertical limiting groove 4 is provided on the anti-rotation block 3;

[0025] The anti-rotation mechanism includes a limit head with an end portion for embedding into the vertical limit groove 4, and a driving device for driving the limit head to approach the anti-rotation block 3;

[0026] The lifting drive wheel includes a bracket 56 slidably connected to the vehicle body 1, a roller 57 rotatably connected to the bracket 56, a rotating device for rotating the roller 57, and a sliding device for driving the bracket 56 to slide up and down on the vehicle body 1;

[0027] The driving device is a first screw rod 7 whose one end is rotatably connected to the limit head;

[0028] The first screw rod 7 is threadedly connected to the vehicle body 1 .

[0029] The limiting head is conical, and the cross section of the vertical limiting groove 4 is V-shaped.

[0030] A hand wheel 8 is provided at one end of the first screw rod 7 away from the limiting head.

[0031] The rotating device is a motor;

[0032] The sliding device includes a second screw rod 12 threadedly connected to the bracket 56 and a second driving machine 13 for rotating the second screw rod 12 .

[0033] The lifting drive wheel also includes a slide 14 slidably connected to opposite sides of the bracket 56;

[0034] The slide seat 14 is fixedly connected to the vehicle body 1 .

[0035] There are eight lift-type drive wheels in total;

[0036] The vehicle body 1 is provided with two lifting drive wheels at the front, rear, left and right sides;

[0037] The moving directions of the rollers 57 of the lifting drive wheels on the front and rear sides are perpendicular to the moving directions of the rollers 57 on the left and right sides (supporting transportation in the X direction and the Y direction).

[0038] Principle of the embodiment:

[0039] Initially, the roller 57 is disengaged from the ground, the vehicle body 1 is leaning against the ground, and the workbench is located above the vehicle body 1;

[0040] Turn the hand wheel, and the limit head enters the vertical limit groove 4 to prevent the workbench and the vehicle body 1 from rotating relative to each other;

[0041] The second screw 12 rotates, and the roller 57 moves downward relative to the vehicle body 1. After leaning against the ground, the vehicle body 1 is lifted upward. After the vehicle body 1 approaches the workbench, the workbench is lifted upward, and the workbench leans against the bull's eye 2.

[0042] Under the action of the motor, the roller 57 rotates and the workbench moves on the ground;

[0043] After the workbench moves to the workstation, the handwheel is turned, the limit head leaves the vertical limit slot 4, the second screw 12 rotates, and the roller 57 moves upward relative to the vehicle body 1. The roller is against the ground, so the vehicle body 1 drives the workbench to move downward. In this process, the workbench and the workstation are connected, and as the vehicle body 1 continues to move downward, the vehicle body 1 and the workbench are disconnected.

[0044] Embodiment 2:

[0045] See also Figure 4 , the difference between this embodiment and embodiment 1 is: driving device;

[0046] The driving device of this embodiment is as follows: the driving device includes a ring gear 15 rotatably connected to the vehicle body 1, a guide surface 16 located on the inner side of the ring gear 15, a driving gear 17 meshing with the ring gear 15, a third driving machine for rotating the driving gear 17, and a force spring 18 for applying a force to the limit head toward the guide surface 16 so that the limit head rests on the guide surface 16.

[0047] Principle of the embodiment:

[0048] Four anti-rotation blocks 3 are fixedly connected to the edge of the workbench, and the anti-rotation blocks 3 are evenly arranged along the edge of the workbench;

[0049] After the ring gear 15 is rotated, the limit head moves synchronously under the action of the guide surface 16 and the force spring 18.

[0050] Embodiment 3:

[0051] See also Figures 5 to 7 : The difference between this embodiment and embodiment 1 is: a sliding device and a rotating device;

[0052] In this embodiment, the sliding device includes a downward pressure spring 44 located between the bracket 56 and the vehicle body 1 for applying a downward force to the bracket 56, a first rotating shaft 19 rotatably connected to the bracket 56, a fourth driving machine (using a motor) for rotating the first rotating shaft 19, a damping cylinder 20 sleeved on the first rotating shaft 19, a first rotating block 21 and a second rotating block 24 located in the damping cylinder 20, damping oil filled in the damping cylinder 20, a blade 23 located in the damping cylinder 20 that drives the damping cylinder 20 to move along the first rotating shaft 19 after rotation, and a first rotating shaft 19 fixedly connected to the first rotating shaft 19. A first lever 25 for shifting the first rotating block 21, a second lever 26 fixedly connected to the first rotating shaft 19 for shifting the second rotating block 24, a driving gear 27 sleeved on the damping cylinder 20, damping oil between the damping cylinder 20 and the driving gear 27, a driven gear 28 meshing with the driving gear 27, a second rotating shaft 59 fixedly connected to the driven gear 28, a swivel 29 sleeved on the first rotating shaft 19, a first return spring 30 located between the swivel 29 and the damping cylinder 20 for returning the damping cylinder 20, and an electric hoist 58 located on the bracket 56;

[0053] The first rotating shaft 19 passes through the damping cylinder 20, the first rotating shaft 19 is rotatably connected to the damping cylinder 20, the blade 23 is fixed to the first rotating shaft 19, the rotating ring 29 is rotatably connected to the bracket 56, the second rotating shaft 59 is connected to the electric hoist, the chain 43 of the electric hoist is connected to the vehicle body 1, the first rotating block 21 and the first lever 25 are located at one end of the damping cylinder 20, the second rotating block 24 and the second lever 26 are located at the other end of the damping cylinder 20, and the first lever 25 and the second lever 26 are located between the first rotating block 21 and the second rotating block 24;

[0054] A first slide groove 32 is provided at one end of the first rotating shaft 19 away from the fourth driving machine;

[0055] The rotating device includes a push rod 33 slidably connected in the first slide groove 32, a second return spring 35 located in the first slide groove 32 for returning the push rod 33, a push-out mechanism for pushing the end of the push rod 33 out of the first slide groove 32 when the damping cylinder 20 moves along the first rotating shaft 19, a winding wheel 37, a third rotating shaft 39 rotatably connected to the winding wheel 37, damping oil located between the third rotating shaft 39 and the winding wheel 37, a first bevel gear 34 fixed to the first rotating shaft 19 for driving the third rotating shaft, a pull wire 38 connected at one end to the winding wheel 37, a sliding frame 40 connected to the other end of the pull wire 38, a third return spring for returning the sliding frame 40, a fourth rotating shaft 46 rotatably connected to the sliding frame 40, a transmission groove 41 located at the end of the fourth rotating shaft 46 for cooperating with the first rotating shaft 19, and a transmission gear 47 sleeved on the fourth rotating shaft 46 for driving the roller 57;

[0056] The sliding frame 40 and the bracket 56 are slidably connected, and the transmission gear 47 and the fourth rotating shaft 46 are slidably connected.

[0057] A second slide groove 48 is provided on the first rotating shaft 19, and a fourth slide groove 49 in an annular shape is provided at one end of the damping cylinder 20 away from the fourth driving machine;

[0058] The ejection mechanism includes a fourth slider slidably connected in the fourth slide groove 49, a rotating rod 50 rotatably connected in the middle of the second slide groove 48, a connecting bracket 51 slidably connected to the first rotating shaft 19 at one end, a protrusion 52 at one end of the connecting bracket 51, a long hole 53 at one end of the rotating rod 50, a push plate 54 located in the second slide groove 48, and a control rod 55 connected to the push plate 54 at one end;

[0059] The protrusion 52 is located in the long hole 53, one end of the connecting bracket 51 is connected to the fourth slider, the push plate 54 is located on the side of the rotating rod 50 away from the damping cylinder 20, and one end of the control rod 55 away from the push plate 54 is connected to the push rod 33.

[0060] The cross section of the first rotating shaft 19 at one end away from the fourth driving machine is square.

[0061] The cross section of the fourth rotating shaft 46 is square.

[0062] The damping oil is silicone oil.

[0063] Initially, the first rotating shaft and the transmission slot 41 are disengaged, the first rotating block 21 and the first shifting rod 25 are disengaged, and the second rotating block and the second shifting rod 26 are disengaged.

[0064] The electric hoist is driven by rotating the second rotating shaft 59 to control the sliding of the bracket 56 on the vehicle body 1. When the chain 43 is wound, the downward pressure spring 44 contracts and the bracket 56 moves upward along the vehicle body 1; when the chain 43 is output, the downward pressure spring 44 extends, and under the action of the downward pressure spring 44, the bracket 56 moves downward along the vehicle body 1.

[0065] In order to facilitate the explanation of the problem, the following description will be made based on the orientation of the attached figure.

[0066] Advance statement: As long as the first rotating shaft rotates, it will drive the third rotating shaft to rotate. Under the action of the damping oil, it will drive the winding wheel 37 to rotate. The winding wheel 37 will wind the pull wire, and the pull wire will pull the sliding frame. The sliding frame moves toward the first rotating shaft, and the transmission groove 41 is expected to cooperate with the first rotating shaft.

[0067] It is stated again in advance: regardless of whether the damping cylinder 20 moves to the left or to the right, under the action of the connecting bracket 51, the rotating rod 50 rotates, and the end of the rotating rod 50 pushes the control rod, thereby driving the push rod 33, and the end of the push rod extends out of the first slide groove 32, thereby preventing the transmission groove 41 from matching with the first rotating shaft.

[0068] When the first rotating shaft rotates at a high speed: the blade 23 will quickly stir the damping oil, the damping cylinder 20 and the first rotating shaft will rotate relative to each other, and the damping oil will flow from one side of the blade 23 to the other side of the blade 23. Due to the mutual action of the forces, the damping cylinder 20 will move along the first rotating shaft, assuming that it moves to the left. The first return spring 30 will extend, and then the first rotating block 21 and the first lever 25 will cooperate. Under the action of the first lever 25, the damping cylinder 20 will rotate, driving the driving gear 27 to rotate, and then driving the driven gear 28 to rotate, and then driving the electric hoist to run and output the chain 43 (similarly, the chain 43 can be rolled up by quickly rotating the first rotating shaft in the opposite direction). See Figure 7 .

[0069] When the first rotating shaft rotates slowly: the blade 23 rotates slowly, the blade 23 exerts a small force on the damping cylinder 20, and the damping cylinder 20 cannot be driven to move along the first rotating shaft. The first rotating block 21 cannot cooperate with the first lever 25, and the second rotating block cannot cooperate with the second lever 26. The push rod does not extend out of the first sliding groove 32, and the transmission groove 41 cooperates with the first rotating shaft, which can drive the transmission gear 47 to rotate, and then drive the roller to rotate. Figure 6 .

[0070] This embodiment realizes the function of controlling the rotation of the roller and the up and down movement of the bracket 56 by using different rotation speeds of a single motor.

Claims

1. A rail vehicle for transporting a circular workbench, characterized in that: It includes a vehicle body, a bull's eye rotatably connected to the upper side of the vehicle body for supporting a workbench, a lifting drive wheel located on the vehicle body, and an anti-rotation mechanism for limiting the relative rotation of the vehicle body and the workbench; An anti-rotation block is provided on the side of the workbench, and a vertical limiting groove is provided on the anti-rotation block; The anti-rotation mechanism includes a limit head with an end portion for embedding into a vertical limit groove, and a driving device for driving the limit head to approach the anti-rotation block; the driving device is a first screw rod with one end rotatably connected to the limit head, and the first screw rod is threadedly connected to the vehicle body; or the driving device includes a ring gear rotatably connected to the vehicle body, a guide surface located on the inner side of the ring gear, a driving gear meshing with the ring gear, a third driving machine for rotating the driving gear, and a force spring for applying a force to the limit head toward the guide surface so that the limit head rests on the guide surface; The lifting drive wheel comprises a bracket slidably connected to the vehicle body, a roller rotatably connected to the bracket, a rotating device for rotating the roller, and a sliding device for driving the bracket to slide up and down on the vehicle body; Initially, the rollers are disengaged from the ground, the vehicle body is against the ground, and the workbench is located above the vehicle body; The limit head enters the vertical limit groove to prevent the workbench and the car body from rotating relative to each other; The sliding device operates, and the roller moves downward relative to the vehicle body. After leaning against the ground, the vehicle body is lifted upward. After the vehicle body approaches the workbench, the workbench is lifted upward, and the workbench leans against the bull's eye. The rollers rotate and the workbench moves on the ground; After the workbench moves to the workstation, the limit head leaves the vertical limit slot, the sliding device runs, the roller moves upward relative to the car body, the car body drives the workbench to move downward, and after the workbench and the workstation are connected, the car body and the workbench are disengaged.

2. A rail vehicle for transporting a circular workbench according to claim 1, characterized in that: The limiting head is conical, and the cross section of the vertical limiting groove is V-shaped.

3. A rail vehicle for transporting a circular workbench according to claim 1, characterized in that: A hand wheel is provided at one end of the first screw rod away from the limiting head.

4. A rail vehicle for transporting a circular workbench according to claim 1, characterized in that: The rotating device is a motor; The sliding device comprises a second screw rod threadably connected to the bracket and a second driving machine for rotating the second screw rod.

5. A rail vehicle for transporting a circular workbench according to claim 4, characterized in that: The lifting drive wheel also includes a sliding seat slidably connected to opposite sides of the bracket; The sliding seat is fixedly connected to the vehicle body.

6. A rail vehicle for transporting a circular workbench according to claim 1, characterized in that: There are eight lifting drive wheels in total; The front side, rear side, left side and right side of the vehicle body are each provided with two lifting drive wheels; The moving directions of the rollers of the lifting drive wheels on the front and rear sides are perpendicular to the moving directions of the rollers on the left and right sides.

7. A rail vehicle for transporting a circular workbench according to claim 1, characterized in that: The limiting head is slidably connected to the vehicle body.

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