Crawler crane driving wheel convenient to maintain and replace

Abstract

The invention relates to the technical field of crawler cranes, in particular to a crawler crane driving wheel convenient to maintain and replace, which comprises a lifting base and a bearing support, a driving wheel is arranged at one end of the bearing support, a driven wheel is rotatably arranged at the other end of the bearing support, and a device support frame is connected to one side of the bearing support. A driving assembly is arranged in the device supporting frame and comprises a driving machine and a driving plate, the outer side face of the driving plate is connected with a mounting column, the mounting column is sleeved with the driving wheel, a hydraulic limiting cylinder is arranged in the bearing support, and the hydraulic limiting cylinder is connected with a U-shaped limiting block through a hydraulic output shaft. After the driving wheel is connected to the mounting column in a sleeving mode, a U-shaped limiting block on the hydraulic output shaft is clamped into a limiting groove, then the driving wheel can be limited, the driving wheel can be directly driven to rotate while the driving plate rotates, and meanwhile the driving wheel can be conveniently disassembled and assembled.

Description

Technical Field

[0001] The present invention relates to the technical field of crawler cranes, in particular to a driving wheel for a crawler crane which is convenient to repair and replace. Background Art

[0002] A crawler crane is a boom-rotating crane with crawlers as its walking device. It is widely used in large-scale engineering fields such as construction, bridges, ports, nuclear power, wind power, and petrochemicals. Its core structure includes a crawler chassis, boom, turntable, slewing mechanism, lifting mechanism, luffing mechanism and counterweight system. It is driven by hydraulic or electric power to achieve vertical lifting, horizontal movement and 360° full rotation of heavy objects.

[0003] The key technical parameters of crawler cranes include lifting capacity, lifting height, working radius and lifting torque. The crawler design gives it strong ground adaptability, making it particularly suitable for soft, muddy or rugged terrain;

[0004] When a crane is used for a long time, the drive wheel needs to be repaired and replaced. When disassembling the drive wheel, first remove the connecting bolts of the wheel shaft end coupling, remove the fastening bolts connecting the wheel group angular bearing box and the end beam, then use the crane's lifting screw or jack to lift the crane bridge so that the wheel tread is about 10mm away from the top surface of the track, pry the wheel group and pull it out along the track surface for removal and replacement. The traditional drive wheel is fixed to the engine of the vehicle body with bolts, so each disassembly is cumbersome and wastes a lot of time. In addition, due to the frequent disassembly of the bolts, it may cause thread slippage or breakage. If it is not disassembled for a long time, it will rust.

[0005] Therefore, the present invention provides a drive wheel for a crawler crane that is easy to repair and replace, so as to make up for and improve the shortcomings of the prior art. Summary of the Invention

[0006] In response to the defects of the existing technology, the present invention provides a drive wheel for a crawler crane that is easy to repair and replace, which can effectively solve the technical problems of cumbersome disassembly, wasting a lot of time, and frequent disassembly of bolts, which may also cause thread slippage or breakage.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention discloses a driving wheel for a crawler crane that is easy to repair and replace, comprising a lifting base and load-bearing brackets fixedly arranged on both sides of the lifting base, one end of the load-bearing bracket is provided with a driving wheel, and the other end is rotatably provided with a driven wheel, and the outer sides of the driving wheel and the driven wheel are rotatably provided with crawlers;

[0009] One side of the load-bearing bracket is connected to a device support frame, and a driving assembly is fixedly arranged inside the device support frame. The driving assembly includes a driving machine and a driving plate arranged at the output end of the driving machine. The outer side of the driving plate is connected to a mounting column, and the driving wheel is sleeved on the mounting column. One side of the driving plate is provided with a plurality of clamping protrusions, and the driving wheel is provided with a plurality of driving slots, the driving slots correspond to the clamping protrusions, and the clamping protrusions are clamped and connected with the driving slots;

[0010] A hydraulic limit cylinder is fixedly installed inside the load-bearing bracket, and the hydraulic limit cylinder is connected to a U-shaped limit block through a hydraulic output shaft. A limit slot is provided on the mounting column, and after the hydraulic limit cylinder is started, the U-shaped limit block is clamped inside the limit slot.

[0011] Preferably, the crawler track includes a plurality of plate mechanisms connected in sequence, the plate mechanisms include fixedly connected track plates and chain rails, each two chain rails are rotationally connected by a combination bolt, and each two plate mechanisms are rotationally connected by a combination bolt, and the bottom side surface of the track plate is fixedly provided with an anti-slip protrusion.

[0012] Preferably, the combined bolt includes a first bolt and a second bolt, the first bolt and the second bolt are of the same size, and the first bolt and the second bolt are combined together to form a bolt structure.

[0013] Preferably, one end of the bolt one and the bolt two are connected to a bolt limit head, the outer side surface of the bolt limit head is provided with an assembly groove, a brake block is rotatably provided inside the assembly groove, and the brake block is connected to a locking protrusion through a transmission shaft, and a protrusion recovery bin or a locking bin is provided on the bolt one and the bolt two, and the locking protrusion is rotatably provided inside the protrusion recovery bin or the locking bin.

[0014] Preferably, a first magnet is fixedly provided inside the locking chamber, and a second magnet corresponding to the first magnet is fixedly provided on the locking protrusion, and the magnetic poles of the corresponding surfaces of the first magnet and the second magnet are opposite.

[0015] Preferably, a hydraulic button is fixedly provided on the outer side surface of the load-bearing bracket, and the hydraulic button is electrically connected to the hydraulic limit cylinder. A hydraulic through groove is opened on one side of the load-bearing bracket, and the hydraulic output shaft passes through the hydraulic through groove.

[0016] Preferably, a pull plate is fixedly provided on the outer side surface of the driving wheel, a handle groove is provided on the pull plate, and a protruding tooth is fixedly provided on the outer side surface of the driving wheel, and the protruding tooth is engaged with the crawler track.

[0017] Preferably, a plurality of fixed blocks are fixedly provided at the bottom of the load-bearing bracket, a guide wheel is rotatably provided on the fixed block, and the guide wheel is rotatably connected to the crawler track.

[0018] Preferably, one end of the load-bearing bracket away from the device support frame is fixedly connected to a wheel frame, the driven wheel is rotatably arranged inside the wheel frame, and the driven wheel is rotatably connected to the crawler track.

[0019] Preferably, a tensioning device is fixedly provided on the upper side of the load-bearing bracket, and the tensioning device is rotatably connected to the crawler track.

[0020] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0021] After the driving wheel is sleeved on the mounting column, the driving slot on the driving wheel is directly clamped on the clamping protrusion on the driving plate. Therefore, when the driving plate rotates, the driving wheel can be directly driven to rotate. The structure is simple, the installation is convenient and quick, and the efficiency of assembly and disassembly is improved.

[0022] In order to ensure the stability of the driving wheel, it is necessary to limit the driving wheel. At the same time, it is also necessary to facilitate disassembly and assembly. A limiting groove is provided on the mounting column on one side of the driving plate. After the driving wheel is installed on the mounting column, the hydraulic limiting cylinder is started to make the U-shaped limiting block on the hydraulic output shaft stuck in the inner part of the limiting groove, thereby limiting the driving wheel and ensuring the normal rotation of the driving wheel. In addition, it is convenient to disassemble and assemble the driving wheel, thereby improving the efficiency of disassembly and assembly.

[0023] The present invention takes into account that the crawler track can be disassembled at the same time as the drive wheel is disassembled. The existing disassembly method often requires the removal of connecting rivets and multiple hammering operations, which wastes a lot of time and may cause injuries to workers during the operation.

[0024] After the first and second bolts are brought together in opposite directions, the locking protrusion is rotated by rotating the brake block inside the assembly groove. Both the first and second bolts are provided with a protrusion recovery bin or a locking bin. The locking protrusion is rotatably arranged inside the protrusion recovery bin or the locking bin. Before locking, the locking protrusion is rotatably arranged inside the protrusion recovery bin. When locking, the locking protrusion is rotatably arranged inside the locking bin. The first and second bolts are locked by the locking protrusion. The structure is simple, no hammering is required, and the efficiency of disassembly and assembly is improved.

[0025] At the same time, in order to prevent the locking protrusion from shaking inside the protrusion recovery bin or the locking bin, a first magnet is fixedly provided inside the locking bin, and a second magnet corresponding to the first magnet is fixedly provided on the locking protrusion. The magnetic poles of the corresponding surfaces of the first magnet and the second magnet are opposite. The second magnet fixed on the locking protrusion has opposite magnetic properties to the first magnet inside the locking bin. Due to the interaction between the magnetic poles, the locking protrusion will be adsorbed inside the locking bin, thereby ensuring the stability of the locking protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The invention is further described with reference to the following exemplary embodiments illustrated with the aid of the accompanying drawings, in which:

[0027] Figure 1 A perspective view of the present invention;

[0028] Figure 2 A partial cross-sectional view of a drive assembly of the present invention;

[0029] Figure 3 This is a partial structural diagram of the driving wheel of the present invention;

[0030] Figure 4 Schematic diagram of the structure of the driving wheel of the present invention;

[0031] Figure 5 This is a structural diagram of the hydraulic limit cylinder of the present invention;

[0032] Figure 6 This is a structural diagram of the drive assembly of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the crawler of the present invention;

[0034] Figure 8 It is a side structural schematic diagram of the present invention;

[0035] Figure 9 It is a three-dimensional diagram of the combined bolt of the present invention;

[0036] Figure 10 Schematic diagram of the internal structure of the combined bolt of the present invention;

[0037] Figure 11 It is a cross-sectional view of the combined bolt of the present invention.

[0038] The numbers in the figure represent:

[0039] 1. Lifting base;

[0040] 2. Load-bearing bracket; 201. Device support frame; 202. Wheel frame; 203. Hydraulic groove; 204. Hydraulic button;

[0041] 3. Driving wheel; 301. Driving slot; 302. Pull plate; 303. Raised teeth;

[0042] 4. Driven wheel;

[0043] 5. Track; 501. Plate mechanism; 502. Chain track; 503. Track shoe; 505. Anti-skid protrusion;

[0044] 6. Drive assembly; 601. Drive motor; 602. Drive plate; 603. Snap-fit ​​protrusion; 604. Mounting column; 605. Limiting groove;

[0045] 7. Hydraulic limit cylinder; 701. Hydraulic output shaft; 702. U-shaped limit block;

[0046] 8. Assembly bolt; 801. Bolt 1; 802. Bolt 2; 803. Bolt stopper; 804. Assembly slot; 805. Brake block; 806. Locking bump; 807. Bump recovery chamber; 808. Locking chamber; 809. Drive shaft; 810. First magnet; 811. Second magnet;

[0047] 9. Fixed block; 901. Guide wheel;

[0048] 10. Tensioning device. DETAILED DESCRIPTION

[0049] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0050] The present invention will be further described below with reference to the embodiments.

[0051] like Figures 1-11 As shown, the present embodiment provides a crawler crane driving wheel that is easy to repair and replace. In view of the above-mentioned crawler crane driving wheel that is easy to repair and replace, it includes a lifting base 1 and load-bearing brackets 2 fixedly arranged on both sides of the lifting base 1. One end of the load-bearing bracket 2 is provided with a driving wheel 3, and the other end is rotatably provided with a driven wheel 4. The outer sides of the driving wheel 3 and the driven wheel 4 are rotatably provided with crawler tracks 5. Consistent with the traditional crawler drive principle, the crawler tracks 5 are driven by the driving wheel 3, and the driven wheel 4 plays a certain supporting and guiding role.

[0052] In order to facilitate the disassembly of the drive wheel 3, the traditional drive wheel and the engine of the vehicle body are fixed by bolts, so each disassembly is cumbersome and wastes a lot of time. Moreover, due to the frequent disassembly of the bolts, it may cause thread slippage or breakage. If it is not disassembled for a long time, it will rust. One side of the load-bearing bracket 2 is connected to the device support frame 201, and the interior of the device support frame 201 is fixedly provided with a drive assembly 6. The drive assembly 6 includes a drive motor 601 and a drive plate 602 arranged at the output end of the drive motor 601. The drive assembly 6 is fixedly arranged on the device support frame 201 to improve the stability of the drive motor 601. At the same time, after the drive motor 601 is started, it can To drive the driving plate 602 to rotate, the outer side surface of the driving plate 602 is connected to the mounting post 604, and the driving wheel 3 is sleeved on the mounting post 604. A plurality of clamping protrusions 603 are provided on one side of the driving plate 602, and a plurality of driving slots 301 are provided on the driving wheel 3. The driving slots 301 correspond to the clamping protrusions 603, and the clamping protrusions 603 are clamped and connected with the driving slots 301. After the driving wheel 3 is sleeved on the mounting post 604, the driving slots 301 on the driving wheel 3 are directly clamped on the clamping protrusions 603 on the driving plate 602. Therefore, when the driving plate 602 rotates, the driving wheel 3 can be directly driven to rotate. The structure is simple, the installation is convenient and quick, and the efficiency of disassembly and assembly is improved.

[0053] like Figure 3 、 Figure 5 as well as Figure 6 As shown, in order to ensure the stability of the driving wheel 3, it is necessary to limit the driving wheel 3, and at the same time, it is also necessary to facilitate disassembly and assembly. A hydraulic limit cylinder 7 is fixedly provided inside the load-bearing bracket 2. The hydraulic limit cylinder 7 is connected to a U-shaped limit block 702 through a hydraulic output shaft 701. A limit groove 605 is provided on the mounting column 604. After the hydraulic limit cylinder 7 is started, the U-shaped limit block 702 is clamped inside the limit groove 605. A limit groove 605 is provided on the mounting column 604 on one side of the driving plate 602. After the driving wheel 3 is installed on the mounting column 604, the hydraulic limit cylinder 7 is started so that the U-shaped limit block 702 on the hydraulic output shaft 701 is clamped inside the limit groove 605, thereby limiting the driving wheel 3. At the same time, it can ensure the normal rotation of the driving wheel 3. In addition, it is convenient to disassemble and assemble the driving wheel 3, thereby improving the efficiency of disassembly and assembly.

[0054] like Figure 7 、 Figure 9 、 Figure 10 as well as Figure 11As shown, the present invention takes into account that while the drive wheel 3 is being disassembled and assembled, the crawler track 5 may also be disassembled. The existing disassembly method often requires the removal of the connecting rivets, which requires multiple hammering, thus wasting a lot of time and may also cause harm to the staff during the operation. The crawler track 5 includes a plurality of plate mechanisms 501 connected in sequence, and the plate mechanism 501 includes a fixedly connected track plate 503 and a chain rail 502. Every two chain rails 502 are rotatably connected by a combination bolt 8, and every two plate mechanisms 501 are rotatably connected by a combination bolt 8. The bottom side surface of the track plate 503 is fixedly provided with an anti-skid protrusion 505. The combination bolt 8 includes a bolt 1 801 and a bolt 2 802. The bolt 1 801 and the bolt 2 802 are of the same size, and the bolt 1 801 and the bolt 2 802 are combined together to form a bolt structure. Therefore, the present invention adopts a combined bolt to combine the bolt 1 801 and the bolt 2 802 to form a bolt. The bolt 1 801 and the bolt 2 802 are combined together to form a bolt. One end of each bolt 801 is connected to a bolt limiting head 803, which plays a certain limiting role. The outer side of the bolt limiting head 803 is provided with an assembly groove 804, and a brake block 805 is provided for rotation inside the assembly groove 804. The brake block 805 is connected to a locking protrusion 806 through a transmission shaft 809. After the bolt 1 801 and the bolt 2 802 are brought together in opposite directions, the locking protrusion 806 is rotated by rotating the brake block 805 inside the assembly groove 804, and the bolt 1 Both the first and second bolts 801 and 802 are provided with a protrusion recovery bin 807 or a locking bin 808. The locking protrusion 806 is rotatably arranged inside the protrusion recovery bin 807 or the locking bin 808. Before being locked, the locking protrusion 806 is rotatably arranged inside the protrusion recovery bin 807. When locked, the locking protrusion 806 is rotatably arranged inside the locking bin 808. The first and second bolts 801 and 802 are locked by the locking protrusion 806. The structure is simple, no hammering is required, and the efficiency of disassembly and assembly is improved.

[0055] The specific steps for installing the combination bolt 8 are:

[0056] First, bring the two chain rails 502 closer together, rotate the locking protrusion 806 on the bolt 1 801 or the bolt 2 802 into the protrusion recovery chamber 807, and then insert the bolt 1 801 or the bolt 2 802 into the chain rail 502 from both ends, and make the planes of the bolt 1 801 and the bolt 2 802 close together;

[0057] Then, the brake block 805 inside the assembly groove 804 is rotated in sequence, so that the transmission shaft 809 drives the locking protrusion 806 to rotate into the locking chamber 808. The two locking protrusions 806 both limit the position of the bolt 1 801 and the bolt 2 802, thereby improving the stability of the combined bolt 8 and preventing the combined bolt 8 from falling off.

[0058] During disassembly and assembly, the locking protrusion 806 is rotated into the interior of the protrusion recovery bin 807 by rotating the brake block 805, and then the bolt 1 801 and the bolt 2 802 are removed respectively. The structure is simple, greatly improving the efficiency of production and disassembly, and can also be recycled to improve the utilization rate of resources;

[0059] At the same time, if Figure 11 As shown, in order to prevent the locking protrusion 806 from shaking inside the protrusion recovery bin 807 or the locking bin 808, a first magnet 810 is fixedly provided inside the locking bin 808, and a second magnet 811 corresponding to the first magnet 810 is fixedly provided on the locking protrusion 806. The magnetic poles of the corresponding surfaces of the first magnet 810 and the second magnet 811 are opposite. The second magnet 811 fixed on the locking protrusion 806 has opposite magnetic properties to the first magnet 810 inside the locking bin 808. Due to the interaction between the magnetic poles, the locking protrusion 806 will be adsorbed inside the locking bin 808, thereby ensuring the stability of the locking protrusion 806.

[0060] Further, such as Figure 8 As shown, a hydraulic button 204 is fixedly provided on the outer side of the load-bearing bracket 2. The hydraulic button 204 is electrically connected to the hydraulic limit cylinder 7. A hydraulic through groove 203 is opened on one side of the load-bearing bracket 2. The hydraulic output shaft 701 passes through the hydraulic through groove 203. The hydraulic button 204 is electrically connected to the hydraulic limit cylinder 7. The operation of the hydraulic limit cylinder 7 can be controlled by the hydraulic button 204 without manual operation, thereby improving the convenience of use.

[0061] In addition, if Figure 4 As shown, a pull plate 302 is fixedly provided on the outer side surface of the driving wheel 3, and a handle groove is provided on the pull plate 302. A protruding tooth 303 is fixedly provided on the outer side surface of the driving wheel 3, and the protruding tooth 303 is engaged with the track 5. A pull plate 302 is fixedly provided on the driving wheel 3, and a handle groove is provided on the pull plate 302. The handle groove on the pull plate 302 can be used to more conveniently remove the driving wheel 3 from the mounting column 604, thereby improving the convenience of use.

[0062] Furthermore, Figure 1 and Figure 8 As shown, a plurality of fixed blocks 9 are fixedly provided at the bottom of the load-bearing bracket 2, and a guide wheel 901 is rotatably provided on the fixed block 9. The guide wheel 901 is rotatably connected to the crawler 5. A plurality of fixed blocks 9 are fixedly connected to the bottom of the load-bearing bracket 2, and a guide wheel 901 is rotatably provided on each of the fixed blocks 9. The guide wheel 901 plays a certain supporting and guiding role on the crawler 5, thereby improving the transmission stability of the crawler 5.

[0063] The end of the load-bearing bracket 2 away from the device support frame 201 is fixedly connected to the wheel frame 202, and the driven wheel 4 is rotatably arranged inside the wheel frame 202, and the driven wheel 4 is rotatably connected to the crawler track 5. The driven wheel 4 is rotatably arranged inside the wheel frame 202 to improve the stability of the driven wheel 4 and the crawler track 5;

[0064] A tensioning device 10 is fixedly provided on the upper side of the load-bearing bracket 2. The tensioning device 10 is rotatably connected to the crawler track 5. The tensioning device 10 can prevent the crawler track 5 from being too loose and improve the stability of the crawler track 5 during operation.

[0065] like Figures 1-11 As shown, the embodiment provides a crawler crane driving wheel that is easy to repair and replace. The complete working principle and steps of the above embodiment are as follows:

[0066] In order to facilitate the disassembly of the driving wheel 3, the traditional driving wheel and the engine of the vehicle body are fixed by bolts. Therefore, each disassembly is cumbersome and wastes a lot of time. Moreover, due to the frequent disassembly of the bolts, it may cause stripping or breakage. If it is not disassembled for a long time, it may rust. The driving assembly 6 is fixedly arranged on the device support frame 201 to improve the stability of the driving machine 601. At the same time, after the driving machine 601 is started, it can drive the driving plate 602 to rotate. After the driving wheel 3 is sleeved on the mounting column 604, the driving slot 301 on the driving wheel 3 is directly clamped on the clamping protrusion 603 on the driving plate 602. Therefore, when the driving plate 602 rotates, the driving wheel 3 can be directly driven to rotate. The structure is simple, the installation is convenient and quick, and the efficiency of disassembly and assembly is improved.

[0067] In order to ensure the stability of the driving wheel 3, it is necessary to limit the driving wheel 3 and at the same time to facilitate disassembly and assembly. A limiting groove 605 is provided on the mounting column 604 on one side of the driving plate 602. After the driving wheel 3 is mounted on the mounting column 604, the hydraulic limiting cylinder 7 is started to make the U-shaped limiting block 702 on the hydraulic output shaft 701 snap into the inside of the limiting groove 605, thereby limiting the driving wheel 3 and ensuring the normal rotation of the driving wheel 3. In addition, it is convenient to disassemble and assemble the driving wheel 3, thereby improving the efficiency of disassembly and assembly.

[0068] The present invention takes into account that when the drive wheel 3 is disassembled and assembled, the crawler track 5 may also be disassembled. The existing disassembly method often requires the removal of the connecting rivets, which requires multiple hammering, thus wasting a lot of time and may also cause injuries to the workers during the operation. Therefore, the present invention adopts a combined bolt, combining the bolt 1 801 and the bolt 2 802 together to form a bolt, and one end of the bolt 1 801 and the bolt 2 802 are connected with a bolt limit head 803, which plays a certain limiting role. After the bolt 1 801 and the bolt 2 802 are close together in opposite directions, the locking protrusion 806 is rotated by rotating the brake block 805 inside the assembly groove 804. Before being locked, the locking protrusion 806 is rotated and arranged inside the protrusion recovery bin 807. When locked, the locking protrusion 806 is rotated and arranged inside the locking bin 808, and the bolt 1 801 and the bolt 2 802 are locked by the locking protrusion 806. The structure is simple, no hammering is required, and the efficiency of disassembly and assembly is improved.

[0069] The specific steps for installing the combination bolt 8 are:

[0070] First, bring the two chain rails 502 closer together, rotate the locking protrusion 806 on the bolt 1 801 or the bolt 2 802 into the protrusion recovery chamber 807, and then insert the bolt 1 801 or the bolt 2 802 into the chain rail 502 from both ends, and make the planes of the bolt 1 801 and the bolt 2 802 close together;

[0071] Then, the brake block 805 inside the assembly groove 804 is rotated in sequence, so that the transmission shaft 809 drives the locking protrusion 806 to rotate into the locking chamber 808. The two locking protrusions 806 both limit the position of the bolt 1 801 and the bolt 2 802, thereby improving the stability of the combined bolt 8 and preventing the combined bolt 8 from falling off.

[0072] During disassembly and assembly, the locking protrusion 806 is rotated into the interior of the protrusion recovery bin 807 by rotating the brake block 805, and then the bolt 1 801 and the bolt 2 802 are removed respectively. The structure is simple, which greatly improves the efficiency of production and disassembly and assembly, and can also be recycled to improve resource utilization.

[0073] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A drive wheel for a crawler crane that is easy to repair and replace, comprising a lifting base (1) and load-bearing brackets (2) fixedly arranged on both sides of the lifting base (1), characterized in that: A driving wheel (3) is provided at one end of the load-bearing bracket (2), and a driven wheel (4) is rotatably provided at the other end, and tracks (5) are rotatably provided on the outer sides of the driving wheel (3) and the driven wheel (4); One side of the load-bearing bracket (2) is connected to a device support frame (201), and a driving assembly (6) is fixedly arranged inside the device support frame (201), and the driving assembly (6) includes a driving machine (601) and a driving plate (602) arranged at the output end of the driving machine (601), and the outer side surface of the driving plate (602) is connected to a mounting column (604), and the driving wheel (3) is sleeved on the mounting column (604), and one side surface of the driving plate (602) is provided with a plurality of clamping protrusions (603), and the driving wheel (3) is provided with a plurality of driving slots (301), and the driving slots (301) correspond to the clamping protrusions (603), and the clamping protrusions (603) are clamped and connected with the driving slots (301); A hydraulic limit cylinder (7) is fixedly provided inside the load-bearing bracket (2), and the hydraulic limit cylinder (7) is connected to a U-shaped limit block (702) via a hydraulic output shaft (701). A limit slot (605) is provided on the mounting column (604), wherein after the hydraulic limit cylinder (7) is activated, the U-shaped limit block (702) is clamped inside the limit slot (605).

2. The crawler crane drive wheel that is easy to repair and replace according to claim 1, characterized in that: The crawler track (5) includes a plurality of plate mechanisms (501) connected in sequence, wherein the plate mechanism (501) includes a track plate (503) and a chain rail (502) that are fixedly connected, each two of the chain rails (502) are rotatably connected via a combination bolt (8), and each two of the plate mechanisms (501) are rotatably connected via a combination bolt (8), and an anti-slip protrusion (505) is fixedly provided on the bottom side of the track plate (503).

3. The drive wheel for a crawler crane that is easy to repair and replace according to claim 2, characterized in that: The combined bolt (8) comprises a bolt 1 (801) and a bolt 2 (802), wherein the bolt 1 (801) and the bolt 2 (802) are of the same size, and the bolt 1 (801) and the bolt 2 (802) are combined together to form a bolt structure.

4. The drive wheel for a crawler crane that is easy to repair and replace according to claim 3, characterized in that: One end of each of the bolts 1 (801) and 2 (802) is connected to a bolt limiting head (803), an outer side surface of each of the bolt limiting heads (803) is provided with an assembly groove (804), a brake block (805) is rotatably provided inside the assembly groove (804), and the brake block (805) is connected to a locking protrusion (806) via a transmission shaft (809), and each of the bolts 1 (801) and 2 (802) is provided with a protrusion recovery bin (807) or a locking bin (808), and the locking protrusion (806) is rotatably provided inside the protrusion recovery bin (807) or the locking bin (808).

5. The drive wheel for a crawler crane that is easy to repair and replace according to claim 4, characterized in that: A first magnet (810) is fixedly provided inside the locking chamber (808), and a second magnet (811) corresponding to the first magnet (810) is fixedly provided on the locking protrusion (806), wherein the magnetic poles of the corresponding surfaces of the first magnet (810) and the second magnet (811) are opposite.

6. The drive wheel for a crawler crane that is easy to repair and replace according to claim 1, characterized in that: A hydraulic button (204) is fixedly provided on the outer side surface of the load-bearing bracket (2), and the hydraulic button (204) is electrically connected to the hydraulic limit cylinder (7). A hydraulic through groove (203) is provided on one side of the load-bearing bracket (2), and the hydraulic output shaft (701) passes through the hydraulic through groove (203).

7. The drive wheel for a crawler crane that is easy to repair and replace according to claim 1, characterized in that: A pull plate (302) is fixedly provided on the outer side surface of the driving wheel (3), and a handle groove is provided on the pull plate (302). A raised tooth (303) is fixedly provided on the outer side surface of the driving wheel (3), and the raised tooth (303) is engaged and connected with the crawler belt (5).

8. The crawler crane driving wheel that is easy to repair and replace according to claim 1, characterized in that: A plurality of fixed blocks (9) are fixedly provided at the bottom of the load-bearing bracket (2), and a guide wheel (901) is rotatably provided on the fixed block (9), and the guide wheel (901) is rotatably connected to the crawler (5).

9. The drive wheel for a crawler crane that is easy to repair and replace according to claim 1, characterized in that: One end of the load-bearing bracket (2) away from the device support frame (201) is fixedly connected to a wheel frame (202); the driven wheel (4) is rotatably arranged inside the wheel frame (202); and the driven wheel (4) is rotatably connected to the crawler track (5).

10. The drive wheel for a crawler crane that is easy to repair and replace according to claim 1, characterized in that: A tensioning device (10) is fixedly provided on the upper side of the load-bearing bracket (2), and the tensioning device (10) is rotatably connected to the crawler belt (5).

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