Counterweight type lifting machine self-propelled device

Abstract

The utility model provides a self-propelled device of a counterweight type lifting machine, which relates to the technical field of cranes, and comprises a rack arranged on a guide rail in a sliding manner, the bottom of the rack is fixedly connected with the lifting machine, and two groups of first travelling wheels and two groups of second travelling wheels are arranged on the inner side of the lifting machine; the first walking wheel and the second walking wheel are in sliding fit with guide rail grooves formed in the front side and the rear side of the guide rail, two sets of cleaning blocks are arranged in the guide rail grooves in a sliding mode, the left side and the right side of the rack are each provided with two sets of balance weight plates, the balance weight plates are detachably connected with the rack, and the four sets of cleaning blocks are detachably connected with the four sets of balance weight plates. The four groups of counterweight plates are additionally arranged on the left side and the right side of the rack, so that the counterweight of the rack is increased, the hoisting stability of hoisting equipment is improved, the cleaning blocks fixed on the counterweight plates can move along with the rack and synchronously clean the guide rail groove, the running stability of the wheel set in the rack is ensured, and the hoisting safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a self-propelled device for a counterweight type crane. Background Art

[0002] A counterweight system is a fundamental requirement for cranes and is the most direct component in ensuring smooth and safe operation. For equipment to operate smoothly during operation, physical counterweights are necessary. As lifting capacity increases during production, the various basic components must also be lengthened and weighed more. When customers have limited space, the higher the lift, the more difficult it is to achieve perfect balance.

[0003] Therefore, to ensure stable lifting of lifting machinery, some lifting equipment will add counterweights to the electric hoist to keep the frame balanced without affecting the travel of the electric hoist's running wheels. The problem is that as gravity increases, the pressure on the contact surface between the running wheels and the guide rails also increases. When obstacles such as metal debris and dust appear on the guide rail grooves, it can easily hinder the travel of the running wheels, affecting the service life of the guide rails and the safety of the self-propelled mechanism. Utility Model Content

[0004] In response to the above problems, the utility model proposes a self-propelled device for a counterweight crane. The self-propelled device increases the counterweight of the frame by adding four sets of counterweight plates on the left and right sides of the frame, thereby improving the lifting stability of the lifting equipment. The cleaning blocks fixed on the counterweight plates can follow the movement of the frame and synchronously clean the guide rail grooves, ensuring the stable movement of the wheel group inside the frame and improving the lifting safety.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a counterweight type crane self-propelled device, including a frame slidably arranged on a guide rail, and a crane is fixedly connected to the bottom of the frame;

[0006] Two sets of first running wheels and two sets of second running wheels are provided on the inside of the crane. Both the first running wheels and the second running wheels are rotatably connected to the frame. The first running wheels and the second running wheels are slidably matched with the guide rail grooves provided on the front and rear sides of the guide rail. A driving device for controlling the synchronous rotation of the two sets of second running wheels is provided on the outside of the frame.

[0007] Two groups of cleaning blocks are slidingly arranged in the guide rail groove, and two groups of counterweight plates are respectively arranged on the left and right sides of the frame. The counterweight plates are detachably connected to the frame, and the four groups of cleaning blocks are detachably connected to the four groups of counterweight plates.

[0008] A further improvement is that the driving device includes a motor and a driving gear, the driving gear is rotatably connected to the inner side of the frame, the motor is fixedly connected to the outer side of the frame, the motor output end is fixedly connected to the driving gear, the driving gear is meshed with a driven gear sleeved on the outer side of the second walking wheel, and the driven gear is fixedly connected to the second walking wheel.

[0009] Further improvements are: a first mounting sleeve is provided on the side of the cleaning block away from the guide rail, the first mounting sleeve is fixedly connected to the cleaning block, the first mounting sleeve is sleeved on the outside of the counterweight plate, the counterweight plate is slidably connected to the first mounting sleeve, and a first bolt positioning member is provided on the outside of the first mounting sleeve for limiting the position of the first mounting sleeve.

[0010] A further improvement is that the first bolt positioning member includes a plurality of second fixing bolts, the second fixing bolts penetrate into the first mounting sleeve and are threadedly connected to the bolt holes opened on the outside of the counterweight plate, and the second fixing bolts are threadedly connected to the first mounting sleeve.

[0011] A further improvement is that two sets of second mounting sleeves are fixedly provided on the left and right sides of the frame, the second mounting sleeves are sleeved on the outside of the counterweight plate, the counterweight plate is slidably connected to the second mounting sleeves, and a second bolt positioning piece for limiting the counterweight plate is provided on the outside of the second mounting sleeves.

[0012] A further improvement is that the second bolt locator includes a first fixing bolt assembled on the outside of the second mounting sleeve, the first fixing bolt penetrates into the second mounting sleeve and is threadedly connected to the bolt hole opened on the outside of the counterweight plate, and the first fixing bolt is threadedly connected to the second mounting sleeve.

[0013] A further improvement is that a limiting ring is provided on the outer side of the counterweight plate, the limiting ring is fixedly connected to the counterweight plate, and the limiting ring contacts the side of the second mounting sleeve.

[0014] The beneficial effects of the utility model are as follows: the utility model increases the counterweight of the frame by adding four sets of counterweight plates on the left and right sides of the frame, thereby improving the lifting stability of the hoisting equipment; the cleaning blocks fixed on the counterweight plates can follow the movement of the frame and synchronously clean the guide rail grooves, thereby ensuring the stable movement of the wheel group inside the frame and improving the lifting safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the guide rail in the utility model.

[0016] Figure 2 It is a structural diagram of the exterior of the frame in the utility model.

[0017] Figure 3 It is a structural diagram of the interior of the frame in the utility model.

[0018] Among them: 1. Guide rail; 2. Frame; 3. Crane; 4. Guide rail groove; 5. Cleaning block; 6. Counterweight plate; 7. First traveling wheel; 8. Motor; 9. Second traveling wheel; 10. First mounting sleeve; 11. Driven gear; 12. Driving gear; 13. Second mounting sleeve; 14. First fixing bolt; 15. Limiting ring; 16. Second fixing bolt. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0020] according to Figure 1-Figure 3 As shown, this embodiment proposes a counterweight type crane self-propelled device, including a frame 2 slidably arranged on a guide rail 1, and a crane 3 is fixedly connected to the bottom of the frame 2;

[0021] Two sets of first running wheels 7 and two sets of second running wheels 9 are provided on the inside of the crane 3. The first running wheels 7 and the second running wheels 9 are both rotatably connected to the frame 2. The first running wheels 7 and the second running wheels 9 are slidably matched with the guide rail grooves 4 provided on the front and rear sides of the guide rail 1. A driving device for controlling the synchronous rotation of the two sets of second running wheels 9 is provided on the outside of the frame 2.

[0022] The left and right ends of the guide rail 1 are fixed to the external frame, and the frame 2 is slidably set on the guide rail 1. The first running wheel 7 and the second running wheel 9 on the inner side of the frame 2 are in close contact with the guide rail groove 4. When the driving device drives the two sets of second running wheels 9 to rotate synchronously, the second running wheel 9 will move along the guide rail groove 4, and move synchronously with the frame 2. The second running wheel 9 moves along the guide rail groove 4 on the other side of the guide rail 1 to limit the frame 2 from the other side of the frame 2.

[0023] Two sets of cleaning blocks 5 are slidably arranged in the guide rail groove 4, and two sets of counterweight plates 6 are respectively provided on the left and right sides of the frame 2. The counterweight plates 6 are detachably connected to the frame 2. The four sets of cleaning blocks 5 are detachably connected to the four sets of counterweight plates 6. The detachable installation method makes it easy to replace and maintain each component.

[0024] By adding four sets of counterweight plates 6 on the left and right sides of the frame 2, the counterweight of the frame 2 is increased, improving the lifting stability of the hoisting equipment. The cleaning blocks 5 fixed to the counterweight plates 6 can follow the movement of the frame 2 and clean the guide rail grooves 4 synchronously, ensuring the stable movement of the inner wheel group of the frame 2 and improving the lifting safety.

[0025] About the drive unit:

[0026] The driving device includes a motor 8 and a driving gear 12. The driving gear 12 is rotatably connected to the inside of the frame 2, and the motor 8 is fixedly connected to the outside of the frame 2. The output end of the motor 8 is fixedly connected to the driving gear 12. The driving gear 12 meshes with the driven gear 11 sleeved on the outside of the second travel wheel 9, and the driven gear 11 is fixedly connected to the second travel wheel 9. The driving gear 12 is set between the two second travel wheels 9. When the motor 8 drives the driving gear 12 to rotate, the driving gear 12 will simultaneously mesh with the driven gears 11 on the outside of the two sets of second travel wheels 9, driving the two sets of second travel wheels 9 to rotate synchronously, thereby realizing the forward and backward movement of the frame 2.

[0027] It is worth noting that a first mounting sleeve 10 is provided on the side of the cleaning block 5 away from the guide rail 1. The first mounting sleeve 10 is fixedly connected to the cleaning block 5 and is mounted on the outside of the counterweight plate 6. The counterweight plate 6 is slidably connected to the first mounting sleeve 10. A first bolt locating member is provided on the outside of the first mounting sleeve 10 for limiting the position of the first mounting sleeve 10. The first mounting sleeve 10 is mounted on the outside of the counterweight plate 6 and can slide along the counterweight plate 6. The first bolt locating member secures the first mounting sleeve 10 to the counterweight plate 6, completing the installation of the cleaning block 5.

[0028] More specifically, the first bolt locating member includes a plurality of second fixing bolts 16. The second fixing bolts 16 penetrate into the first mounting sleeve 10 and are threadedly connected to bolt holes defined on the outside of the counterweight plate 6. The second fixing bolts 16 are threadedly connected to the first mounting sleeve 10. When removing the cleaning block 5 from the counterweight plate 6, the second fixing bolts 16 on the outside of the first mounting sleeve 10 are simply unscrewed from the bolt holes on the outside of the counterweight plate 6, making disassembly and replacement convenient.

[0029] It's worth noting that two sets of second mounting sleeves 13 are fixedly mounted on each of the left and right sides of the frame 2. These second mounting sleeves 13 fit over the outside of the counterweight plate 6, which is slidably connected to the second mounting sleeves 13. Second bolt locators are provided on the outside of the second mounting sleeves 13 to limit the position of the counterweight plate 6. The second mounting sleeves 13 fit over the outside of the counterweight plate 6 and are fixed to the frame 2. To install the counterweight plate 6, the second mounting sleeves 13 are inserted into the second mounting sleeves 13 and then secured to the counterweight plate 6 using the second bolt locators.

[0030] More specifically, the second bolt locator includes a first fixing bolt 14 mounted on the outside of the second mounting sleeve 13. The first fixing bolt 14 penetrates the second mounting sleeve 13 and is threadedly connected to a bolt hole defined on the outside of the counterweight plate 6. The first fixing bolt 14 is threadedly connected to the second mounting sleeve 13. Similarly, when removing the counterweight plate 6 from the left or right sides of the frame 2, the first fixing bolt 14 on the outside of the second mounting sleeve 13 is simply unscrewed from the bolt hole on the outside of the counterweight plate 6.

[0031] To facilitate the assembly of the counterweight plate 6 by the operator, in a preferred embodiment, a retaining ring 15 is provided on the outside of the counterweight plate 6. The retaining ring 15 is fixedly connected to the counterweight plate 6 and contacts the side of the second mounting sleeve 13. When the counterweight plate 6 slides into the second mounting sleeve 13, the retaining ring 15 on the outside of the counterweight plate 6 will position the counterweight plate 6 and restrict it from sliding further. During installation, ensure that the bolt hole on the outside of the counterweight plate 6 matches the first fixing bolt 14 on the outside of the second mounting sleeve 13.

[0032] The upper frame 2 of the self-propelled device of the counterweight crane is slidably set on the guide rail 1, and the first running wheel 7 and the second running wheel 9 on the inner side of the frame 2 are in close contact with the guide rail groove 4. When the driving device drives the two sets of second running wheels 9 to rotate synchronously, the second running wheels 9 will move along the guide rail groove 4, and move synchronously with the frame 2. The second running wheels 9 move along the guide rail groove 4 on the other side of the guide rail 1, and limit the frame 2 from the other side of the frame 2. By adding four sets of counterweight plates 6 on the left and right sides of the frame 2, the counterweight of the frame 2 is increased, and the lifting stability of the hoisting equipment is improved. The cleaning block 5 fixed on the counterweight plate 6 can follow the movement of the frame 2 and clean the guide rail groove 4 synchronously, ensuring the stable movement of the wheel group inside the frame 2 and improving the safety of hoisting.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A self-propelled counterweight crane device, comprising a frame (2) slidably arranged on a guide rail (1), a crane (3) fixedly connected to the bottom of the frame (2), characterized in that: Two groups of first running wheels (7) and two groups of second running wheels (9) are provided on the inner side of the crane (3), the first running wheels (7) and the second running wheels (9) are both rotatably connected to the frame (2), the first running wheels (7) and the second running wheels (9) are slidably engaged with the guide rail grooves (4) provided on the front and rear sides of the guide rail (1), and a driving device for controlling the synchronous rotation of the two groups of second running wheels (9) is provided on the outer side of the frame (2); Two groups of cleaning blocks (5) are slidably arranged in the guide rail groove (4), and two groups of counterweight plates (6) are respectively arranged on the left and right sides of the frame (2). The counterweight plates (6) are detachably connected to the frame (2), and four groups of cleaning blocks (5) are detachably connected to four groups of counterweight plates (6).

2. The self-propelled device of a counterweight crane according to claim 1, characterized in that: The driving device comprises a motor (8) and a driving gear (12), wherein the driving gear (12) is rotatably connected to the inner side of the frame (2), the motor (8) is fixedly connected to the outer side of the frame (2), the output end of the motor (8) is fixedly connected to the driving gear (12), the driving gear (12) is meshed with a driven gear (11) sleeved on the outer side of the second travel wheel (9), and the driven gear (11) is fixedly connected to the second travel wheel (9).

3. The self-propelled device of a counterweight crane according to claim 1, characterized in that: A first mounting sleeve (10) is provided on a side of the cleaning block (5) away from the guide rail (1), the first mounting sleeve (10) is fixedly connected to the cleaning block (5), the first mounting sleeve (10) is sleeved on the outside of the counterweight plate (6), the counterweight plate (6) is slidably connected to the first mounting sleeve (10), and a first bolt positioning member for limiting the position of the first mounting sleeve (10) is provided on the outside of the first mounting sleeve (10).

4. The self-propelled device of a counterweight crane according to claim 3, characterized in that: The first bolt positioning member includes a plurality of second fixing bolts (16), the second fixing bolts (16) penetrate into the first mounting sleeve (10) and are threadedly connected to the bolt holes opened on the outside of the counterweight plate (6), and the second fixing bolts (16) are threadedly connected to the first mounting sleeve (10).

5. The self-propelled device of a counterweight crane according to claim 1, characterized in that: Two sets of second mounting sleeves (13) are fixedly provided on the left and right sides of the frame (2), respectively. The second mounting sleeves (13) are sleeved on the outside of the counterweight plate (6). The counterweight plate (6) is slidably connected to the second mounting sleeves (13). A second bolt positioning member for limiting the position of the counterweight plate (6) is provided on the outside of the second mounting sleeves (13).

6. The self-propelled device of a counterweight crane according to claim 5, characterized in that: The second bolt locating member includes a first fixing bolt (14) assembled on the outside of the second mounting sleeve (13), the first fixing bolt (14) penetrates into the second mounting sleeve (13) and is threadedly connected to a bolt hole provided on the outside of the counterweight plate (6), and the first fixing bolt (14) is threadedly connected to the second mounting sleeve (13).

7. The self-propelled device of a counterweight crane according to claim 5, characterized in that: A limiting ring (15) is provided on the outer side of the counterweight plate (6), the limiting ring (15) is fixedly connected to the counterweight plate (6), and the limiting ring (15) contacts the side of the second mounting sleeve (13).

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