Cart travel mechanism and beam lifter

Abstract

The utility model discloses a cart traveling mechanism and a beam lifter, which comprise a traveling component, a support component, a rotary component and a jacking component, and the support component is detachably arranged above the traveling component. The rotation assembly is connected with the advancing assembly and the supporting assembly and used for driving the advancing assembly to rotate relative to the supporting assembly after the advancing assembly and the supporting assembly are separated. The jacking assembly comprises a jacking driving piece, a pressure sensor and a jacking shaft, wherein the fixed end of the jacking driving piece is connected with the advancing assembly, and the driving end of the jacking driving piece is movably arranged in the vertical direction. The pressure sensor is connected with the driving end of the jacking driving piece. The jacking shaft is connected with the pressure sensor and is in clearance fit with the supporting assembly. The bearing part is slidably arranged on the top shaft in a sleeving mode, abuts against the pressed end of the pressure sensor and is used for synchronously and vertically moving along with the pressure sensor so as to abut against the advancing assembly after the advancing assembly and the supporting assembly are separated, and then the advancing assembly applies preset pressure to the pressure sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and in particular to a trolley traveling mechanism. In addition, the utility model also relates to a beam lifting machine including the above trolley traveling mechanism. Background Technique

[0002] A beam lifting machine is a gantry crane, mainly composed of components such as a fabricated main beam, legs, and a trolley. In a precast beam yard, a beam lifting machine is usually used to transfer precast beams. The whole machine runs on fixed double tracks. During operation, the beam lifting machine mainly moves and turns 90° through the trolley traveling mechanism to realize the conversion between longitudinal and lateral traveling modes, so as to meet the lifting and transfer work of all precast beams with different spans in the precast yard.

[0003] However, in the existing traveling mechanisms, for example, Chinese Patent Application CN101348210A discloses a track transfer device, which includes a traveling mechanism containing steel wheels, a first slewing mechanism connecting the saddle beam and the traveling mechanism, a first slewing drive mechanism, and a jacking mechanism; the first slewing mechanism can rotatably connect the traveling mechanism and the saddle beam; the first slewing drive mechanism can drive the traveling mechanism to rotate relative to the saddle beam; the jacking mechanism is a jacking hydraulic cylinder including a cylinder body and a piston, the cylinder body is relatively fixed to the saddle beam, and a support leg is provided at the outer end of the piston; when the jacking hydraulic cylinder extends, the support leg can jack up the saddle beam; the jacking mechanism includes a jacking support, a second slewing bearing, a second slewing drive mechanism, the cylinder body of the jacking hydraulic cylinder, a piston, a support leg, and a stroke limiting device. The second slewing bearing as the second slewing mechanism connects the jacking support and the cylinder body to realize the rotatable connection between the cylinder body and the jacking support. Therefore, in this traveling mechanism, the jacking mechanism is subjected to a large force during operation, with large wear and tear and short service life. Moreover, if it is used in an ultra-large tonnage crane, the selection of the slewing bearing in the jacking mechanism needs to be increased, resulting in a large size of the slewing bearing, and the corresponding structural parts also need to be increased, with large weight and troublesome assembly. Summary of the Utility Model

[0004] The utility model provides a trolley traveling mechanism and a beam lifting machine to solve the technical problems that in the existing trolley traveling mechanism, the jacking mechanism is directly stressed, with short service life and poor applicability.

[0005] According to an aspect of the present utility model, a traveling mechanism for a large vehicle is provided, which includes a traveling component, a supporting component, a slewing component, and a jacking component. The supporting component is detachably disposed above the traveling component. The slewing component is respectively connected to the traveling component and the supporting component and is used to drive the traveling component to rotate relative to the supporting component after the traveling component and the supporting component are separated. The jacking component includes a jacking driving member with a fixed end connected to the traveling component and a driving end disposed movably in the vertical direction, a pressure sensor connected to the driving end of the jacking driving member and used to control the jacking driving member to stop working and the slewing component to start working after receiving a preset pressure, a top shaft connected to the pressure sensor and in clearance fit with the supporting component and used to vertically abut against the supporting component to move the supporting component away from the traveling component, and a bearing member slidably sleeved on the top shaft and abutting against the pressure-receiving end of the pressure sensor and used to vertically move synchronously with the pressure sensor to abut against the traveling component after the traveling component and the supporting component are separated, so as to apply a preset pressure to the pressure sensor by the traveling component.

[0006] As a further improvement of the above technical solution:

[0007] Further, the supporting component includes a supporting seat detachably connected to the traveling component and connected to the slewing component and used to abut against the top shaft, and a supporting cross beam disposed on the supporting seat.

[0008] Further, the traveling component includes a connecting seat detachably connected to the supporting seat, an upper equalizing beam connected to the connecting seat and connected to the slewing component, a plurality of lower equalizing beams spaced apart on the upper equalizing beam, a driving wheel set disposed on the lower equalizing beam, and a driven wheel set disposed on the lower equalizing beam and arranged at intervals with the driving wheel set.

[0009] Further, the driving wheel set includes a mounting frame, a traveling wheel rotatably disposed on the mounting frame, and a driving member with an output end connected to the traveling wheel.

[0010] Further, a plug pin is vertically disposed on the supporting seat, a plug hole for plugging and matching with the plug pin is vertically opened on the connecting seat, there are a plurality of plug pins, the plurality of plug pins are spaced apart circumferentially on the supporting seat, and the plug holes and the plug pins are arranged in one-to-one correspondence.

[0011] Further, the slewing component includes a vertical mounting seat vertically disposed on the upper equalizing beam, a horizontal mounting seat horizontally disposed on the supporting seat, and a slewing driving member with a telescopic driving end and respectively hinged to the vertical mounting seat and the horizontal mounting seat.

[0012] Further, a hemispherical abutting portion is convexly provided on the free end of the top shaft, and a receiving groove arranged in an arc shape for concave-convex matching with the abutting portion is concavely provided on the supporting seat.

[0013] Further, the bearing member includes a bearing seat that abuts against the pressure-receiving end of the pressure sensor, and a rotary bearing disposed within the bearing seat and slidably sleeved outside the jacking shaft.

[0014] There are two traveling assemblies, and the two traveling assemblies are arranged at opposite ends of the support assembly at intervals, and the jacking assembly is disposed between the two traveling assemblies.

[0015] According to another aspect of the present invention, there is also provided a beam hoisting machine, which includes the above-mentioned trolley traveling mechanism.

[0016] The present invention has the following beneficial effects:

[0017] The trolley traveling mechanism of the present invention travels through the traveling assembly to synchronously drive the support assembly, the rotary assembly and the jacking assembly to travel synchronously, and then travels horizontally. When the traveling assembly needs to turn, the driving end of the jacking driving member moves upward vertically, so that the pressure sensor, the jacking shaft and the bearing member move upward vertically synchronously, and then vertically abut against the support assembly, so that the support assembly moves away from the traveling assembly. At the same time, the bearing member abuts against the traveling assembly vertically upward, so that the traveling assembly generates a reaction force on the bearing member, and applies a pressure to the pressure sensor through the bearing member. Until the pressure sensor is subjected to a preset pressure, it indicates that the support assembly and the traveling assembly are separated in place. At this time, the pressure sensor controls the jacking driving member to stop working and the rotary assembly starts to work. The rotary assembly drives the traveling assembly to rotate 90° relative to the support assembly. When the jacking assembly is reset, the traveling assembly can travel longitudinally, thus realizing the conversion between the longitudinal and horizontal traveling modes. During the traveling process of the traveling assembly, due to the clearance fit between the jacking shaft and the support assembly, and the sliding fit between the bearing member and the jacking shaft, compared with the prior art, each component including the bearing member in the jacking assembly will not bear the acting force, and only bears the acting force during the turning process. Therefore, it will not be greatly worn and damaged, has a long service life, and does not need to adjust the specifications of the bearing member to a large extent according to the specifications of the crane, has good applicability and strong practicability, and is suitable for wide promotion and application.

[0018] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The following will refer to the drawings to further elaborate on the present invention in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 is a schematic structural diagram of the trolley traveling mechanism of the preferred embodiment of the present invention;

[0021] Figure 2 It is a schematic cross-sectional view of a partial structure of the trolley traveling mechanism of the preferred embodiment of the present utility model.

[0022] Legend:

[0023] 100, traveling assembly; 110, connecting seat; 120, upper equalizing beam; 130, lower equalizing beam; 140, driving wheel set; 141, mounting bracket; 142, traveling wheel; 143, driving member; 150, driven wheel set; 160, first pin shaft; 170, second pin shaft; 180, core plate; 200, supporting assembly; 210, supporting seat; 220, supporting cross beam; 230, accommodating portion; 300, slewing assembly; 400, jacking assembly; 410, jacking driving member; 420, pressure sensor; 430, jacking shaft; 440, bearing seat; 450, slewing bearing; 460, extension section. Specific embodiments

[0024] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, the present utility model can be implemented in many different ways defined and covered by the following.

[0025] Figure 1 It is a schematic structural view of the trolley traveling mechanism of the preferred embodiment of the present utility model; Figure 2 It is a schematic cross-sectional view of a partial structure of the trolley traveling mechanism of the preferred embodiment of the present utility model.

[0026] Such as Figure 1 And Figure 2As shown in the figure, the trolley traveling mechanism of this embodiment includes a traveling component 100, a support component 200, a slewing component 300, and a jacking component 400. The support component 200 is detachably disposed above the traveling component 100. The slewing component 300 is respectively connected to the traveling component 100 and the support component 200 and is used to drive the traveling component 100 to rotate relative to the support component 200 after the traveling component 100 and the support component 200 are separated. The jacking component 400 includes a jacking driving member 410 with a fixed end connected to the traveling component 100 and a driving end disposed movably in the vertical direction, a pressure sensor 420 connected to the driving end of the jacking driving member 410 and used to control the jacking driving member 410 to stop working and the slewing component 300 to start working after receiving a preset pressure, a jacking shaft 430 connected to the pressure sensor 420 and in clearance fit with the support component 200 and used to vertically abut against the support component 200 to make the support component 200 away from the traveling component 100, and a bearing member slidably sleeved on the jacking shaft 430 and abuting against the pressure-receiving end of the pressure sensor 420 and used to vertically move synchronously with the pressure sensor 420 to abut against the traveling component 100 after the traveling component 100 and the support component 200 are separated, so as to make the traveling component 100 apply a preset pressure to the pressure sensor 420. Specifically, for the trolley traveling mechanism of the present utility model, the traveling component 100 travels to synchronously drive the support component 200, the slewing component 300, and the jacking component 400 to travel synchronously, so as to perform lateral travel. When the traveling component 100 needs to turn, the driving end of the jacking driving member 410 moves upward in the vertical direction, so that the pressure sensor 420, the jacking shaft 430, and the bearing member move upward synchronously in the vertical direction, and then vertically abut against the support component 200, so as to make the support component 200 away from the traveling component 100. At the same time, the bearing member vertically abuts against the traveling component 100, so that the traveling component 100 generates a reaction force on the bearing member and applies a pressure to the pressure sensor 420 through the bearing member. Until the pressure sensor 420 receives the preset pressure, it indicates that the support component 200 and the traveling component 100 are separated in place. At this time, the pressure sensor 420 controls the jacking driving member 410 to stop working and the slewing component 300 to start working. The slewing component 300 drives the traveling component 100 to rotate 90° relative to the support component 200. When the jacking component 400 is reset, the traveling component 100 can perform longitudinal travel, so as to realize the conversion between the longitudinal and lateral travel modes. During the travel of the traveling component 100, since the jacking shaft 430 and the support component 200 are in clearance fit, and the bearing member and the jacking shaft 430 are in sliding fit, compared with the prior art, each component of the jacking component 400 including the bearing member will not bear the acting force, and only bears the acting force during the turning process. Therefore, it will not be subject to too much wear and damage, has a long service life, and does not need to greatly adjust the specification of the bearing member according to the crane specification, has good applicability and strong practicability, and is suitable for wide promotion and application.Optionally, the trolley traveling mechanism further includes a PLC controller, which is electrically connected to the pressure sensor 420, the jacking assembly 400, the traveling assembly 100, and the slewing assembly 300 respectively, so as to cooperate with the pressure sensor 420 to control the electrical coordinated operation of the jacking assembly 400, the traveling assembly 100, and the slewing assembly 300. It should be understood that the specific structures of the PLC controller and the pressure sensor 420 are well-known technologies to those skilled in the art. It should be understood that the fixed ends of the pressure sensor 420 are respectively connected to the top shaft 430 and the driving end of the jacking driving member 410, while the pressure-receiving end of the pressure sensor 420 only abuts against the bearing member. Optionally, the jacking driving member 410 is one of an oil cylinder, a cylinder, or an electric push rod. It should be understood that the crane includes a beam hoist. Optionally, a heightening section 460 is arranged on the driving end of the jacking driving member 410, and the driving end of the jacking driving member 410 is connected to the pressure sensor 420 through the heightening section 460. It should be understood that when the jacking assembly 400 is reset, the support assembly 200 approaches the traveling assembly 100.

[0027] As Figure 1 and Figure 2 shown in this embodiment, the support assembly 200 includes a support seat 210 that is detachably connected to the traveling assembly 100 and connected to the slewing assembly 300 and is used to abut against the top shaft 430, and a support cross beam 220 arranged on the support seat 210. Specifically, the support assembly 200 is detachably connected to the traveling assembly 100 through the support seat 210, so that during a 90° turn, it can be separated from the traveling assembly 100 through the support seat 210 to achieve relative rotation. When traveling horizontally and longitudinally, the support seat 210 and the traveling assembly 100 are connected. The support cross beam 220 is installed through the support seat 210, and then other components of the crane are installed through the support cross beam 220.

[0028] As Figure 1 and Figure 2As shown in the figure, in this embodiment, the traveling assembly 100 includes a connecting seat 110 detachably connected to the support seat 210, an upper equalizing beam 120 connected to the connecting seat 110 and connected to the slewing assembly 300, a plurality of lower equalizing beams 130 arranged at intervals on the upper equalizing beam 120, a driving wheel set 140 arranged on the lower equalizing beam 130, and a driven wheel set 150 arranged on the lower equalizing beam 130 and arranged at intervals with the driving wheel set 140. Specifically, by installing the connecting seat 110 on the upper equalizing beam 120, the connecting seat 110 is detachably connected to the support seat 210, and at the same time, a plurality of lower equalizing beams 130 are installed on the upper equalizing beam 120, so as to install the driving wheel set 140 and the driven wheel set 150 through the lower equalizing beam 130. Under the action of the plurality of driving wheel sets 140 and the plurality of driven wheel sets 150, the stability of the traveling assembly 100 during traveling is ensured. Optionally, two lower equalizing beams 130 are arranged on the upper equalizing beam 120. Optionally, the upper equalizing beam 120 is connected to the lower equalizing beam 130 through a core disc 180. Optionally, the driven wheel set 150 is connected to the lower equalizing beam 130 through a first pin shaft 160. Optionally, the driving wheel set 140 is connected to the lower equalizing beam 130 through a first pin shaft 160. Optionally, the upper equalizing beam 120 is connected to the connecting seat 110 through a second pin shaft 170.

[0029] As Figure 2 shown in the figure, in this embodiment, the driving wheel set 140 includes a mounting frame 141, a traveling wheel 142 rotatably arranged on the mounting frame 141, and a driving member 143 with an output end connected to the traveling wheel 142. Specifically, the traveling wheel 142 is installed through the mounting frame 141, and then the traveling wheel 142 is driven to rotate through the driving member 143, so as to realize the traveling of the traveling assembly 100. Optionally, the driving member 143 includes a motor and a reducer with an input end connected to the motor and an output end connected to the traveling wheel 142.

[0030] As Figure 1 shown in the figure, in this embodiment, a plug pin is arranged vertically on the support seat 210, a plug hole for plugging and matching with the plug pin is vertically opened on the connecting seat 110, there are a plurality of plug pins, and the plurality of plug pins are arranged at intervals in the circumferential direction on the support seat 210, and the plug holes and the plug pins are arranged in one-to-one correspondence. Specifically, when the lifting assembly 400 lifts the support seat 210, the plug pin is pulled out from the plug hole, and when the lifting assembly 400 is lifted and reset, the plug pin is inserted into the plug hole. Optionally, in another embodiment, the plug pin is arranged on the connecting seat 110, and the plug hole is arranged on the support seat 210. Optionally, a locking nut is further included. When the lifting assembly 400 lifts the support seat 210, the locking nut is first unscrewed so that the plug pin can be pulled out from the plug hole, and when the lifting assembly 400 is lifted and reset, the locking nut is threadedly connected to the insertion end of the plug pin to connect and lock the support seat 210 and the connecting seat 110, ensuring the reliability of the overall structure.

[0031] As shown Figure 1 in the figure, in this embodiment, the slewing assembly 300 includes a vertical mounting seat vertically arranged on the upper balance beam 120, a horizontal mounting seat horizontally arranged on the support seat 210, and a slewing drive member with a telescopic drive end that is respectively hinged to the vertical mounting seat and the horizontal mounting seat. Specifically, the slewing drive member is installed through the vertical mounting seat and the horizontal mounting seat. When the traveling assembly 100 and the support assembly 200 are separated, the drive end of the slewing drive member extends, thereby driving the traveling assembly 100 to rotate relative to the support assembly 200 to achieve the steering of the traveling assembly 100. Optionally, the slewing drive member is one of an oil cylinder, a cylinder, or an electric push rod. It should be understood that since it is only necessary to realize that the traveling assembly 100 rotates 90° relative to the support assembly 200 or resets to 0°, the steering requirement can be met by the telescopic movement of the oil cylinder, and the stroke control of the oil cylinder is simple, and the steering angle can be accurately controlled.

[0032] As shown Figure 2 in the figure, in this embodiment, a hemispherical abutting portion is convexly provided at the free end of the top shaft 430, and an arc-shaped receiving groove for concave-convex cooperation with the abutting portion is concavely provided on the support seat 210. Specifically, when the drive end of the jacking drive member 410 moves vertically upward, the abutting portion moves vertically upward to be in concave-convex cooperation with the receiving groove. Since the abutting portion is arranged in a hemispherical shape and the receiving groove is arranged in an arc shape, the abutting portion and the receiving groove are in spherical cooperation to reduce the resistance when the abutting portion rotates relative to the receiving groove. Optionally, the lower end portion of the jacking assembly 400 includes a spherical head and a mounting portion sleeved outside the spherical head for abutting against the horizontal ground, so as to reduce the resistance when the spherical head rotates relative to the mounting portion through the spherical cooperation between the spherical head and the mounting portion. Optionally, the receiving groove is arranged on the receiving portion 230, and the receiving portion 230 is arranged on the support seat 210.

[0033] As shown Figure 2 in the figure, in this embodiment, the bearing member includes a bearing seat 440 abutting against the pressure-receiving end of the pressure sensor 420 and a slewing bearing 450 arranged in the bearing seat 440 and slidably sleeved outside the top shaft 430. Specifically, the slewing bearing 450 is installed through the bearing seat 440 and is slidably sleeved outside the top shaft 430, so as to transmit pressure to the pressure sensor 420 when abutting against the traveling assembly 100, ensure that the rotation is in place, and achieve accurate control of the steering of the traveling assembly 100 relative to the support assembly 200.

[0034] As shown Figure 2As shown in the figure, in this embodiment, there are two traveling assemblies 100. The two traveling assemblies 100 are arranged at opposite ends of the support assembly 200 at intervals, and the lifting assembly 400 is arranged between the two traveling assemblies 100. Specifically, the two traveling assemblies 100 jointly drive the support assembly 200 to travel, realizing double-track operation and ensuring stability during the operation process.

[0035] As Figure 1 and Figure 2 shown, optionally, in an embodiment, the steering process of the gantry crane traveling mechanism is as follows: the driving end of the lifting driving member 410 moves vertically upward to drive the pressure sensor 420, the top shaft 430 and the bearing member to move vertically upward synchronously. The abutting portion of the top shaft 430 is inserted into the receiving groove so that the abutting portion and the receiving groove are in concave-convex fit, thereby driving the support seat 210 and the support cross beam 220 to move upward synchronously. And the support seat 210 is away from the connecting seat 110, while the bearing member is close to the connecting seat 110. After the driving end of the lifting driving member 410 moves vertically upward by a preset distance, the bearing member abuts against the connecting seat 110, and the connecting seat 110 applies a preset pressure to the pressure sensor 420 through the bearing member. Then, the pressure sensor 420 controls the lifting driving member 410 to stop working, and the slewing driving member starts to work to drive the traveling assembly 100 to rotate 90° relative to the support assembly 200.

[0036] The beam lifting machine of this embodiment includes the above-mentioned gantry crane traveling mechanism. Specifically, by adopting the gantry crane traveling mechanism in the beam lifting machine, it realizes the rapid switching between the horizontal ground movement and the transverse and longitudinal traveling modes. And during the transverse or longitudinal movement of the beam lifting machine, it will not cause wear and damage to the lifting assembly 400. Thus, the service life of the lifting assembly 400 can be guaranteed, so that the beam lifting machine can be used for a long time, with strong practicability and suitable for wide promotion and application.

[0037] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A running mechanism for a large vehicle, characterized in that, It includes a traveling component (100), a supporting component (200), a slewing component (300) and a jacking component (400). The supporting component (200) is detachably arranged above the traveling component (100). The slewing component (300) is respectively connected to the traveling component (100) and the supporting component (200) and is used to drive the traveling component (100) to rotate relative to the supporting component (200) after the traveling component (100) and the supporting component (200) are separated. The jacking component (400) includes a jacking driving member (410) with a fixed end connected to the traveling component (100) and a driving end arranged to be vertically movable, a pressure sensor (420) connected to the driving end of the jacking driving member (410) and used to control the jacking driving member (410) to stop working and the slewing component (300) to start working after receiving a preset pressure, a top shaft (430) connected to the pressure sensor (420) and in clearance fit with the supporting component (200) and used to vertically abut against the supporting component (200) to make the supporting component (200) away from the traveling component (100), and a bearing member slidably sleeved on the top shaft (430) and abutting against the pressure-receiving end of the pressure sensor (420) and used to vertically move synchronously with the pressure sensor (420) to abut against the traveling component (100) after the traveling component (100) and the supporting component (200) are separated, so as to apply a preset pressure to the pressure sensor (420) by the traveling component (100).

2. The trolley traveling mechanism according to claim 1, characterized in that, The supporting component (200) includes a supporting seat (210) detachably connected to the traveling component (100) and connected to the slewing component (300) and used to abut against the top shaft (430), and a supporting cross beam (220) arranged on the supporting seat (210).

3. The trolley traveling mechanism according to claim 2, characterized in that, The traveling component (100) includes a connecting seat (110) detachably connected to the supporting seat (210), an upper equalizing beam (120) connected to the connecting seat (110) and connected to the slewing component (300), a plurality of lower equalizing beams (130) spacedly arranged on the upper equalizing beam (120), a driving wheel set (140) arranged on the lower equalizing beam (130), and a driven wheel set (150) arranged on the lower equalizing beam (130) and spaced from the driving wheel set (140).

4. The trolley traveling mechanism according to claim 3, wherein, The driving wheel set (140) includes a mounting frame (141), a traveling wheel (142) rotatably arranged on the mounting frame (141), and a driving member (143) with an output end connected to the traveling wheel (142).

5. The trolley running mechanism according to claim 3, characterized in that, A plurality of insertion pins are vertically arranged on the supporting seat (210). Insertion holes for inserting and mating with the insertion pins are vertically formed on the connecting seat (110). There are a plurality of insertion pins, and the plurality of insertion pins are spacedly arranged circumferentially on the supporting seat (210). The insertion holes and the insertion pins are arranged in one-to-one correspondence.

6. The trolley traveling mechanism according to claim 3, characterized in that, The slewing component (300) includes a vertical mounting seat vertically arranged on the upper equalizing beam (120), a horizontal mounting seat horizontally arranged on the supporting seat (210), and a slewing driving member with a telescopic driving end and respectively hinged to the vertical mounting seat and the horizontal mounting seat.

7. The trolley traveling mechanism according to claim 2, characterized in that The free end of the jacking shaft (430) is convexly provided with a resisting top portion arranged in a hemispherical shape, and the support seat (210) is concavely provided with a receiving groove arranged in an arc shape for engaging with the resisting top portion in a concave-convex manner.

8. The trolley traveling mechanism according to any one of claims 1-7, characterized in that, The bearing member includes a bearing seat (440) abutting against the pressure-receiving end of the pressure sensor (420) and a rotary bearing (450) disposed within the bearing seat (440) and slidably sleeved outside the jacking shaft (430).

9. The trolley traveling mechanism according to any one of claims 1-7, characterized in that There are two traveling assemblies (100), and the two traveling assemblies (100) are arranged at opposite ends of the support assembly (200) at intervals, and the jacking assembly (400) is disposed between the two traveling assemblies (100).

10. A beam hoisting machine, characterized in that, It includes the trolley traveling mechanism according to any one of claims 1-9.

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