Excavator counterweight transfer device

Abstract

The utility model relates to the technical field of engineering machinery transfer, and discloses an excavator counterweight transfer device which comprises a transfer device and a gravity self-transfer limiting mechanism located in the transfer device. The gravity self-transfer limiting mechanism comprises a first self-gravity limiting assembly used for conducting transfer limiting on the long edges of the two sides of the balance weight and a second self-gravity limiting assembly used for conducting transfer limiting on the short edges of the two sides of the balance weight. The first self-gravity limiting assembly comprises a self-gravity triggering abutting block, a reset spring, a first rotating shaft seat, a supporting plate, a shaft rod and a limiting rod, each second self-gravity limiting assembly comprises a triggering piece and a limiting piece, and each triggering piece comprises a self-rotating rod, a shaft sleeve, a support, a telescopic spring and a cam rotating disc. Automatic limiting and fixing of the balancing weight are achieved through the gravity self-transferring limiting mechanism, manual operation is not needed in the whole working process, and the stability and safety of the balancing weight in the transferring process are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering machinery transfer technical field, concretely is a kind of excavator counterweight transfer device. BACKGROUND

[0002] Excavator is currently widely used, and is an important engineering machinery. Counterweight is a component of excavator, which functions to maintain balance of excavator during work and reduce sway of excavator during work. During operation of excavator, especially during digging and lifting, the center of gravity changes. Counterweight increases the weight of tail part, so that the center of gravity of excavator is closer to the center of machine, thereby maintaining overall balance. Counterweight can effectively prevent overturning accidents of excavator due to center of gravity deviation during operation, especially when excavating deep trenches or working on slopes.

[0003] When excavator is transferred between different construction sites, counterweight needs to be transferred according to conditions of new site. During transportation, overall size and weight of excavator are limited by road, bridge or transport vehicle. In order to meet the above requirements, counterweight needs to be transferred.

[0004] For example, the excavator counterweight transfer device with application number 202220736832.X includes a transfer support connected to the bottom frame support, the support column, and the base. The bottom frame support has four corners on the upper end surface, and the base is provided on the lower end surface of the bottom frame support. The base and the support column are movably connected, and the support column and the bottom frame support are movably connected. The support column and the bottom frame support are provided with a connecting rod mechanism and a fixing mechanism. The bottom frame support is provided with a plurality of counterweight hole seats.

[0005] In the above patent, the transfer support is stably connected by the connecting square tube of the four support columns and the base. The connecting rod mechanism needs to be supported by manpower to support the support column and the bottom frame support. The fixed pin is rotated to vertically fix the support column on the bottom frame support, thereby increasing the number of transportation and reducing the cost. However, the structure is complex, the use is cumbersome, the manufacturing cost and maintenance difficulty of the device are increased, the manual participation intensity is large, the fixed pin is rotated by manpower, the manual participation is full, and the safety risk is low.

[0006] Therefore, we propose an excavator counterweight transfer device to solve the above problems. UTILITY MODEL CONTENTS

[0007] The utility model aims to provide an excavator counterweight transfer device to solve the above problems, such as the need for manpower to support the connecting rod mechanism to support the support column and the bottom frame support, the rotation of the fixed pin, the vertical fixation of the support column on the bottom frame support, the large manual participation intensity, the full manual participation, and the low safety risk.

[0008] To achieve the above object, the utility model provides the following technical scheme:

[0009] A excavator counterweight transfer device, including transfer device and in the transfer device inside gravity self transfer limiting mechanism, gravity self transfer limiting mechanism including for the longer side of counterweight both sides transfer limiting first self gravity limiting component and for the shorter side of counterweight both sides transfer limiting second self gravity limiting component, first self gravity limiting component is located second self gravity limiting component top;

[0010] The transfer device includes a first transfer table and a second transfer table, the second transfer table is located on the top of the first transfer table, the bottom of the first transfer table is fixedly connected with the top of the second transfer table through a plurality of supporting blocks, a first through hole is formed through the top of the first transfer table near the center, and a limiting swing groove is formed through the bottom of the second transfer table near the center.

[0011] Preferably, the first self-gravity limiting component includes a self-gravity trigger abutting block, a reset spring, a first shaft seat, a support plate, a shaft rod and a limiting rod, the support plate is arranged in a rectangular structure, the bottom of the self-gravity trigger abutting block is connected with the top of the support plate near the center, the top of the self-gravity trigger abutting block extends to above the first through hole through the first through hole, the reset springs are installed on the top of the support plate in a symmetrical structure, the top of each reset spring is connected with the bottom of the first transfer table, the first shaft seats are installed on the outer walls of the support plate on both sides in a symmetrical structure, the limiting rod is arranged in an L-shaped structure, the limiting rod is arranged in the limiting swing groove on both sides of the first through hole, the middle of the limiting rod is connected with the inner walls of the limiting swing groove on both sides through the shaft rod, and one end of the limiting rod is rotatably connected with the first shaft seat close to the one end through the shaft rod.

[0012] Preferably, the second self-gravity limiting component is arranged in a symmetrical structure on the bottom of the support plate on both sides, each second self-gravity limiting component includes a trigger and a limiting piece, each trigger includes a self-rotating rod, a shaft sleeve, a support, an extension spring and a cam disc, the shaft sleeve is installed through the support, a driving groove is formed through the outer wall on one side of the shaft sleeve, the self-rotating rod extends to below the cam disc in sequence through the shaft sleeve and the support at the bottom and is connected with the cam disc, a driving column is slidably arranged in the driving groove, one end of the driving column is connected with the self-rotating rod, the outer wall of the support is connected with the bottom of the first transfer table, the extension spring is sleeved on the outer wall of the self-rotating rod between the support and the cam disc, and the top of the extension spring is connected with the bottom of the support.

[0013] Preferably, the limiting part comprises a limiting trigger rod, a second rotating shaft seat and a limiting clamp arm, the limiting trigger rod is parallel to the bottom of the first transfer table on one side of the cam turntable, one end of the limiting trigger rod extends to the outside of the first transfer table through a support seat, the top of the support seat is connected with the bottom of the first transfer table, the other end of the limiting trigger rod is in abutment with the outer wall of the cam turntable, the second rotating shaft seat is located on the outer edge wall of the first transfer table above the limiting trigger rod, the limiting clamp arm is rotatably connected with the second rotating shaft seat through a rotating shaft in the middle, and the lower inner wall of the limiting clamp arm is connected with the end of the limiting trigger rod away from the cam turntable.

[0014] Preferably, an inclined anti-skid structure is arranged on the top inner wall of the limiting clamp arm.

[0015] Preferably, the top of the self-gravity trigger abutting block is in abutment with the bottom of the counterweight.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、The application has the advantages of simple structure, convenient use, reduced manufacturing cost and maintenance difficulty of the device, the weight of the counterweight presses the self-gravity trigger abutting block to move downward, the self-gravity trigger abutting block drives the supporting plate to move downward and compresses the return spring, when the supporting plate moves downward, the first rotating shaft seat drives the limiting rod to rotate around the shaft, the limiting rod swings inward from the open position and enters the limiting swing groove to limit the longer sides of the counterweight, in the process of moving downward of the supporting plate, the self-rotating rod is pressed, moves downward under the action of the pressure, and drives the cam turntable to rotate through the cooperation of the driving column and the driving groove, when the cam turntable rotates, the protruding block structure on the cam turntable extrudes the limiting trigger rod, the limiting trigger rod moves to one side after being extruded, the second rotating shaft seat drives the limiting clamp arm to rotate around the rotating shaft, the limiting clamp arm is closed, the inclined anti-skid structure on the top inner wall of the limiting clamp arm is in contact with the shorter sides of the counterweight, the counterweight is clamped and limited, the gravity self-rotation limiting mechanism is triggered by the gravity of the excavator counterweight itself, manual operation is not needed, and the operation efficiency and safety are improved.

[0018] 2、The first self-gravity limiting assembly and the second self-gravity limiting assembly limit the longer sides and the shorter sides of the excavator counterweight respectively, and ensure the stability of the counterweight in the transfer process.

[0019] 3、The first self-gravity limiting assembly and the second self-gravity limiting assembly can be independently disassembled and replaced through modular design, the maintenance cost is reduced, meanwhile, the overall structure of the device is more simple compared with the traditional design, the number of parts is reduced, and the manufacturing cost is reduced.

[0020] 4、The limiting mechanism can adapt to counterweights of different sizes and weights. By adjusting the positions of the limiting rods and the limiting clamping arms, the limiting of counterweights of various specifications can be realized, thereby enhancing the versatility of the device.

[0021] 5、The design of the reset spring and the extension spring ensures that the limiting mechanism can automatically reset after the counterweight is unloaded, thereby improving the reliability and reusability of the device. Meanwhile, the inclined anti-skid structure on the inner wall of the top of the limiting clamping arm further enhances the stability of the counterweight during the transfer process.

[0022] 6、Since the fixing device does not need to be manually operated, the intensity of human involvement in the loading and unloading process is reduced, and the safety risks caused by human operation errors are reduced. Meanwhile, the automatic triggering and locking functions of the limiting mechanism ensure the stability of the counterweight during the transfer process, thereby avoiding accidents caused by vibration or loosening. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the transfer device structure of the utility model;

[0025] Figure 3 It is an axonometric view of the gravity self-transfer limiting mechanism structure of the utility model;

[0026] Figure 4 It is a schematic diagram of the first self-gravity limiting component structure of the utility model;

[0027] Figure 5 It is a schematic diagram of the second self-gravity limiting component structure of the utility model.

[0028] In the figure: 1, transfer device; 11, first transfer table; 111, first through hole; 12, second transfer table; 121, limiting swing groove; 2, gravity self-transfer limiting mechanism; 21, first self-gravity limiting component; 211, self-gravity trigger abutting block; 212, reset spring; 213, first rotation shaft seat; 214, support plate; 215, shaft rod; 216, limiting rod; 22, second self-gravity limiting component; 221, self-rotating rod; 222, shaft sleeve; 2221, driving groove; 2222, driving column; 223, support; 224, extension spring; 225, cam turntable; 226, limiting trigger rod; 227, second rotation shaft seat; 228, limiting clamping arm. DETAILED DESCRIPTION

[0029] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Please refer to the accompanying drawings Figures 1-5 As shown in FIG. 1, a kind of excavator counterweight transfer device, including transfer device 1 and located in transfer device 1 inside gravity self-transfer limiting mechanism 2, transfer device 1 includes first transfer table 11 and second transfer table 12, second transfer table 12 is located at the top of first transfer table 11, first transfer table 11 bottom is fixedly connected with the top of second transfer table 12 by several support blocks, there is a certain interval between each support block, support block is steel block, ensure that first transfer table 11 and second transfer table 12 are stably connected while reserving installation space for gravity self-transfer limiting mechanism 2, support excavator counterweight through first transfer table 11 and second transfer table 12, good stability, the bottom of second transfer table 12 can be connected with external displacement structure, improve the flexibility of position adjustment during transfer, first transfer table 11 is close to the top of the center and is provided with first through-hole 111, the bottom of second transfer table 12 is close to the center and is provided with limiting swing groove 121, through first through-hole 111, weight gravity trigger abutment block 211 in gravity self-transfer limiting mechanism 2 is convenient to extend, and cooperate with the limiting swing groove 121 of second transfer table 12, realize limiting function, ensure the safety and stability during counterweight transfer process.

[0031] The gravity self-rotation transportation limiting mechanism 2 comprises a first self-gravity limiting assembly 21 for limiting the transportation of the longer sides of the counterweight and a second self-gravity limiting assembly 22 for limiting the transportation of the shorter sides of the counterweight. The first self-gravity limiting assembly 21 is located on top of the second self-gravity limiting assembly 22. Through the cooperation of the first self-gravity limiting assembly 21 and the second self-gravity limiting assembly 22, the excavator counterweight on top of the first transportation platform 11 is limited in all directions to ensure that it does not deviate during transportation. The first self-gravity limiting assembly 21 comprises a self-gravity trigger abutting block 211, a return spring 212, a first rotation shaft seat 213, a support plate 214, a shaft rod 215, and a limiting rod 216. The support plate 214 has a rectangular structure. The bottom of the self-gravity trigger abutting block 211 is connected to the top of the support plate 214 near the center. The top of the self-gravity trigger abutting block 211 extends above the first transportation platform 11 through the first through hole 111. When the counterweight is placed on the first transportation platform 11, the bottom of the counterweight contacts the self-gravity trigger abutting block 211. Under the action of the gravity of the counterweight, the self-gravity trigger abutting block 211 moves downward, compresses the return spring 212, and extends the limiting rod 216 outward through the shaft rod 215. The limiting rod 216 contacts the inner wall of the limiting swing groove 121, forming stable limiting and preventing the counterweight from moving sideways, ensuring the safety of transportation. The return spring 212 has a symmetrical structure and is installed on the top of both sides of the support plate 214. The top of each return spring 212 is connected to the bottom of the first transportation platform 11. Through the elastic force of the return spring 212, the self-gravity trigger abutting block 211 automatically resets after the counterweight is removed, and the limiting rod 216 is retracted, maintaining the flexibility and reusability of the mechanism, ensuring the stability and safety of each transportation. The return spring 212 is made of high-strength spring steel, has strong durability, and meets the frequent stretching requirements. The bottom of the support plate 214 is provided with a non-slip pad to enhance friction and prevent sliding. The surface of the shaft rod 215 is treated with a plating layer to improve corrosion resistance and prolong service life. The overall design is delicate, functional, and durable, ensuring efficient and reliable transportation. The first rotation shaft seat 213 has a symmetrical structure and is installed on the outer wall of both sides of the support plate 214. The limiting rod 216 has an L-shaped structure (for details, please refer to Figure 3 and Figure 4), the counterweight is effectively clamped by the L-shaped structure design of the limiting rod 216, the limiting stability is enhanced, and the limiting rod 216 is distributed inside the limiting swing groove 121 on both sides of the first through hole 111. The middle part of the limiting rod 216 is connected with the inner walls on both sides of the limiting swing groove 121 through the shaft rod 215. One end of the limiting rod 216 is rotatably connected with the first rotating shaft seat 213 close to it through the shaft rod 215. The self-gravity trigger abutting block 211 top abuts against the bottom of the counterweight. When the self-gravity trigger abutting block 211 moves downward, the limiting rod 216 is driven by the first rotating shaft seat 213 to rotate around the shaft rod 215. The limiting rod 216 swings inward from the open position and enters the limiting swing groove 121 to limit the longer sides of the counterweight block.

[0032] In the embodiment: when the counterweight is placed on the top of the first transfer table 11, the bottom of the counterweight block abuts against the top of the self-gravity trigger abutting block 211. The weight of the counterweight presses the self-gravity trigger abutting block 211 to move downward. The self-gravity trigger abutting block 211 drives the supporting plate 214 to move downward, compressing the return spring 212. When the supporting plate 214 moves downward, the limiting rod 216 is driven by the first rotating shaft seat 213 to rotate around the shaft rod 215. The limiting rod 216 swings inward from the open position and enters the limiting swing groove 121 to limit the longer sides of the counterweight block.

[0033] The whole limiting action does not use any electrical equipment for operation, saves cost, triggers the limiting by the weight of the counterweight itself, does not need manual participation, and greatly improves the operation efficiency and safety.

[0034] Please refer to the attached drawings Figure 1 , 2The second self-gravity limiting assembly 22 is symmetrically arranged at the bottom of the support plate 214, and each second self-gravity limiting assembly 22 comprises a trigger and a limiting piece. The limiting piece is triggered by the trigger to realize the self-gravity linkage reset limiting function. Each trigger comprises a self-rotation rod 221, a shaft sleeve 222, a support 223, an extension spring 224 and a cam disc 225. The cam disc 225 is provided with an arc-shaped protrusion on the outer circumferential wall. The rotation of the cam disc 225 drives the arc-shaped protrusion to contact the self-rotation rod 221 to provide initial power for subsequent linkage triggering. The shaft sleeve 222 is arranged on the support 223. A driving groove 2221 is formed in the outer wall of one side of the shaft sleeve 222. The self-rotation rod 221 is sequentially arranged through the shaft sleeve 222 and the support 223 and extends below to be connected with the cam disc 225. A driving column 2222 is arranged in the driving groove 2221. One end of the driving column 2222 is connected with the self-rotation rod 221. The driving column 2222 slides in the driving groove 2221. When the support plate 214 is pressed downward, the driving column 2222 slides in the driving groove 2221 to drive the self-rotation rod 221 to rotate. The cam disc 225 rotates and moves downward. The arc-shaped protrusion on the cam disc 225 contacts the self-rotation rod 221 to drive the limiting piece to link, realize the self-gravity reset limiting and ensure the stability of the counterweight. The design further optimizes the limiting mechanism, improves the reliability and automation level of the system, reduces the maintenance cost, connects the outer wall of the support 223 with the bottom of the first transfer table 11, connects and fixes through the support 223 to ensure the stability of the assembly. The extension spring 224 is arranged on the outer wall of the self-rotation rod 221 between the support 223 and the cam disc 225. The top of the extension spring 224 is connected with the bottom of the support 223. The extension spring 224 resets the self-rotation rod 221 to ensure the accuracy of each limiting action. The pre-tightening force of the extension spring 224 ensures the smooth sliding of the driving column 2222, reduces the friction loss, prolongs the service life, has compact overall structure, exquisite design and simple operation, effectively reduces the failure rate, improves the equipment operation stability, provides solid guarantee for long-term efficient operation and the like.

[0035] The limiting member comprises a limiting trigger lever 226, a second rotating shaft seat 227 and a limiting clamp arm 228. The limiting trigger lever 226 is parallel to the bottom of the first transfer table 11 on one side of the cam rotating disc 225. One end of the limiting trigger lever 226 extends to the outside of the first transfer table 11 through a support seat. The limiting trigger lever 226 is fixed and limited by the support seat, so that the limiting trigger lever 226 keeps horizontal displacement in the support seat. The top of the support seat is connected with the bottom of the first transfer table 11. The other end of the limiting trigger lever 226 abuts against the outer wall of the cam rotating disc 225. The second rotating shaft seat 227 is located on the outer edge of the first transfer table 11 above the limiting trigger lever 226. The limiting clamp arm 228 is rotatably connected with the second rotating shaft seat 227 through a rotating shaft in the middle. The inner wall below the limiting clamp arm 228 is connected with the end of the limiting trigger lever 226 away from the cam rotating disc 225. The inner wall on the top of the limiting clamp arm 228 is provided with an inclined anti-skid structure. When the limiting trigger lever 226 is displaced, the limiting trigger lever 226 pushes the limiting clamp arm 228 below outward, rotates around the second rotating shaft seat 227. At this time, the inclined surface on the top of the limiting clamp arm 228 contacts with the outer wall of the counterweight on the top of the first transfer table 11, so as to generate a diagonal limiting torque, which effectively prevents the counterweight from deviating.

[0036] In the embodiment, it is to be noted that when the counterweight does not contact with the self-weight force triggering abutting block 211, the end of the limiting trigger lever 226 abuts against the outer wall of the cam rotating disc 225 near the upper side. When the self-weight force triggering abutting block 211 drives the support plate 214 to move downward and compresses the return spring 212, the support plate 214 moves downward to press the self-rotating lever 221. The self-rotating lever 221 moves downward under the pressure, and drives the cam rotating disc 225 to rotate and move downward through the cooperation of the driving column 2222 and the driving groove 2221. When the cam rotating disc 225 rotates, the protrusion structure thereon extrudes the limiting trigger lever 226. After the limiting trigger lever 226 is extruded, it moves to one side. The limiting clamp arm 228 is driven by the second rotating shaft seat 227 to rotate around the rotating shaft. The limiting clamp arm 228 is closed, and the inclined anti-skid structure on the top of the limiting clamp arm 228 contacts with the two shorter sides of the counterweight, so as to clamp and limit the counterweight. The counterweight is firmly fixed on the transfer device through the double limiting of the first self-weight force limiting assembly 21 and the second self-weight force limiting assembly 22. The transfer device can safely perform the transportation operation. The counterweight will not be displaced due to vibration or external force during the transportation process.

[0037] When the weight block needs to be unloaded, the weight is lifted by external power, the weight is separated from the self-weight trigger abutting block 211, the reset spring 212 is reset, the support plate 214 moves up, the self-weight trigger abutting block 211 is reset, at the same time, the limiting rod 216 rotates reversely around the shaft rod 215, exits the limiting swing groove 121, releases the limiting of the longer side of the weight block, in the process of moving up of the support plate 214, the self-rotation rod 221 moves up under the action of the telescopic spring 224, the cam disc 225 rotates reversely, the cam disc 225 no longer extrudes the limiting trigger rod 226, the limiting trigger rod 226 is reset, drives the limiting clamping arm 228 to rotate reversely around the rotation shaft, the limiting clamping arm 228 is opened, and the clamping of the shorter side of the weight block is released.

[0038] The device adopts modular design, the first self-weight limiting assembly 21 and the second self-weight limiting assembly 21 can be independently disassembled and replaced, maintenance cost is reduced, the overall structure is simple, parts are few, manufacturing cost is low, the reset spring 212 and the telescopic spring 224 ensure that the gravity self-rotation limiting mechanism 2 is automatically reset after unloading, reliability and reusability are improved, automatic triggering and locking functions avoid manual operation errors, manual operation is not needed in the whole process, personnel safety is ensured, at the same time, the weight is ensured to be stable during transfer, and accidents caused by vibration or loosening are prevented.

[0039] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0040] Although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A counterweight transfer device for an excavator, comprising a transfer device (1) and a gravity self-transfer limiting mechanism (2) located inside the transfer device (1), characterized in that: The gravity self-transfer limiting mechanism (2) includes a first gravity limiting component (21) for transferring and limiting the longer sides of the counterweight and a second gravity limiting component (22) for transferring and limiting the shorter sides of the counterweight. The first gravity limiting component (21) is located on top of the second gravity limiting component (22). The transfer device (1) includes a first transfer platform (11) and a second transfer platform (12). The second transfer platform (12) is located on top of the first transfer platform (11). The bottom of the first transfer platform (11) is fixedly connected to the top of the second transfer platform (12) through several support blocks. The first transfer platform (11) has a first through hole (111) through the top near the center. The second transfer platform (12) has a limit swing groove (121) through the bottom near the center.

2. The excavator counterweight transfer device according to claim 1, characterized in that: The first gravity-limiting component (21) includes a gravity-triggered abutment block (211), a return spring (212), a first rotating shaft seat (213), a support plate (214), a shaft (215), and a limiting rod (216). The support plate (214) has a rectangular structure. The bottom of the gravity-triggered abutment block (211) is connected to the top of the support plate (214) near the center. The top of the gravity-triggered abutment block (211) extends through the first through hole (111) to its top. The return spring (212) is symmetrically installed on the top of both sides of the support plate (214). Each of the return springs... The top of the positioning spring (212) is connected to the bottom of the first transfer table (11). The first rotating shaft seat (213) is symmetrically installed on the outer walls of both sides of the support plate (214). The limiting rod (216) is L-shaped. The limiting rod (216) is distributed inside the limiting swing groove (121) on both sides of the first through hole (111). The middle part of the limiting rod (216) is connected to the inner walls on both sides of the limiting swing groove (121) through the shaft (215). One end of the limiting rod (216) is rotatably connected to the first rotating shaft seat (213) that is close to it through the shaft (215).

3. The excavator counterweight transfer device according to claim 2, characterized in that: The second gravity limiting components (22) are symmetrically distributed on both sides of the bottom of the support plate (214). Each second gravity limiting component (22) includes a trigger and a limiting component. Each trigger includes a self-rotating rod (221), a bushing (222), a support (223), a telescopic spring (224), and a cam turntable (225). The bushing (222) is installed through the support (223). A drive groove (2221) is provided through the outer wall of one side of the bushing (222). The bottom of the self-rotating rod (221) passes through the bushing (223). 22) and support (223) extend below and connect to the cam turntable (225). A drive column (2222) is slidably arranged inside the drive groove (2221). One end of the drive column (2222) is connected to the self-rotating rod (221). The outer wall of the support (223) is connected to the bottom of the first transfer table (11). The telescopic spring (224) is sleeved on the outer wall of the self-rotating rod (221) between the support (223) and the cam turntable (225). The top of the telescopic spring (224) is connected to the bottom of the support (223).

4. The excavator counterweight transfer device according to claim 3, characterized in that: The limiting component includes a limiting trigger rod (226), a second rotating shaft seat (227), and a limiting clamping arm (228). The limiting trigger rod (226) is located parallel to the bottom of the first transfer platform (11) on one side of the cam turntable (225). One end of the limiting trigger rod (226) extends to the outside of the first transfer platform (11) through a support seat. The top of the support seat is connected to the bottom of the first transfer platform (11). The other end of the limiting trigger rod (226) abuts against the outer wall of the cam turntable (225). The second rotating shaft seat (227) is located on the outer edge of the first transfer platform (11) above the limiting trigger rod (226). The middle part of the limiting clamping arm (228) is rotatably connected to the second rotating shaft seat (227) through a rotating shaft. The lower inner wall of the limiting clamping arm (228) is connected to the end of the limiting trigger rod (226) away from the cam turntable (225).

5. The excavator counterweight transfer device according to claim 4, characterized in that: An inclined anti-slip structure is provided on the inner wall of the top of the limiting clamp (228).

6. The excavator counterweight transfer device according to claim 3, characterized in that: The top of the gravity-triggered abutment block (211) abuts against the bottom of the counterweight.

Images