Cab front suspension lifting appliance, cab lifting appliance and lifting method

Abstract

The invention belongs to the technical field of automobile lifting appliances, and discloses a cab front suspension lifting appliance, a cab lifting appliance and a lifting method.The cab front suspension lifting appliance comprises a lifting cross beam and a clamping jaw assembly, the lifting cross beam comprises a cross beam body, a left lifting ring and a right lifting ring, and the left lifting ring and the right lifting ring are fixedly connected to the left end and the right end of the cross beam body respectively; the clamping jaw assembly comprises a left clamping jaw and a right clamping jaw, the left clamping jaw and the right clamping jaw are connected to the portion, between the left hanging ring and the right hanging ring, of the cross beam body in a limiting sliding and sleeving mode, and the left clamping jaw and the right clamping jaw are both matched with the cab front suspension upper bracket assembly. The clamping jaw assembly is slidably sleeved on the hoisting cross beam in a limiting manner, the universality of the clamping jaw is improved, the clamping jaw assembly positioning points are arranged on the hoisting cross beam, the clamping jaw assembly is prevented from bumping and scratching a cab, and the clamping jaw is provided with the bearing rod and the supporting rod and has no stress concentration point; a cab front suspension lifting appliance and a rear bearing end lifting appliance are arranged in front of and behind the EMS hanging appliance, so that the problem that the root of a pin column is damaged and broken due to cab lifting stress concentration is solved.

Description

Technical Field

[0001] This invention belongs to the field of automobile crane technology, specifically relating to a cab-mounted front suspension crane, a cab crane, and a lifting method. Background Technology

[0002] In the production, assembly, and maintenance of trucks, the lifting of the cab is a critical process, and its safety, stability, and efficiency directly affect production progress and product quality. As one of the core components of a truck, the cab has a complex structure and is quite heavy. During lifting, specialized lifting equipment must be used to achieve stable and reliable transport, avoiding damage to the cab structure and its paint.

[0003] Currently, various lifting devices for truck cabs exist in the industry. Among them, patent CN202320734835.4 discloses a vehicle cab lifting device, a vehicle assembly system, and a workpiece lifting device. This patent primarily optimizes the lifting position of the boom to improve the rationality of the lifting process. However, it still has many technical shortcomings and cannot meet the diverse needs of actual production. Specifically, this patent does not disclose the specific clamping structure and lifting method of the lifting device's grippers, failing to solve the problems of gripper compatibility and stable clamping with the cab. Furthermore, the front suspension structure of truck cabs varies greatly, with significant differences in size and structure between different models and specifications. This existing lifting device does not consider this structural diversity, resulting in poor versatility and inability to adapt to various types of cabs. Special lifting devices are required for cabs with different front suspension structures, increasing production and maintenance costs and reducing operational efficiency.

[0004] Furthermore, the existing front-load-bearing end gripper structure design is redundant and complex. This cumbersome structure not only increases the weight of the gripper itself but also makes operation more difficult for operators during hooking and clamping. The protruding structure of the grippers is prone to contact and friction with the cab surface, causing scratches and dents to the cab paint, affecting the product's appearance. Simultaneously, during lifting, a large portion of the cab's weight is concentrated on the pin structure, leading to severe stress concentration at the pin root. Over time, this can cause fatigue damage and breakage at the pin root, posing a significant safety hazard.

[0005] In summary, existing truck cab spreaders suffer from technical defects such as poor versatility, complex gripper structures, easy damage to the cab paint, and stress concentration leading to easy damage. They cannot meet the needs of efficient, safe, and stable lifting during truck production, assembly, and maintenance. Therefore, developing a truck cab spreader gripper and lifting method that can solve the above problems has become a technical challenge that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a cab front suspension lifting device, a cab lifting device, and a lifting method. The design of the cab front suspension lifting device involves sliding and engaging the gripper assembly at the upper limit of the lifting beam, and designing two sets of gripper assembly positioning points on the lifting beam. Each gripper has a simple structure, is easy to install, and is equipped with a load-bearing rod and a support rod, eliminating stress concentration points. This improves the versatility of the grippers, making them suitable for different types of cab front suspension structures without lifting holes. It also prevents scratches and impacts to the cab paint caused by idle gripper assemblies during lifting, resulting in high lifting stability. The cab lifting device uses the cab front suspension lifting device installed on the lifting frame before and after the EMS hanger as a front and rear load-bearing end lifting device to work together to lift and transport the cab assembly, avoiding fatigue damage and breakage at the pin root caused by stress concentration.

[0007] The specific details of the plan are as follows:

[0008] A cab front suspension hoist includes a lifting beam and at least one set of gripper assemblies. The lifting beam includes a beam body, a left lifting ring, and a right lifting ring. The beam body is a cylindrical rod. The left and right lifting rings are fixedly connected to the left and right ends of the beam body, respectively. The gripper assembly includes a left gripper and a right gripper. The left and right grippers are slidably sleeved on the beam body between the left and right lifting rings. The left and right grippers are matched with the cab front suspension upper bracket assembly. The hooking directions of the left and right grippers in each set are opposite or back-to-back, used to hook different types of cab front suspension assemblies.

[0009] This invention designs a cab-mounted front suspension spreader, which serves as the front load-bearing spreader for the cab, and is used together with the rear load-bearing spreader and EMS hangers to assist in the lifting and transfer of the cab assembly. The cab-mounted front suspension spreader, as the front load-bearing spreader, is applied to the front suspension of the cab and includes a lifting crossbeam and at least one set of gripper assemblies. The gripper assemblies include a left gripper and a right gripper, which are respectively limited and slidably sleeved onto the main body of the lifting crossbeam. A left lifting ring and a right lifting ring are welded to the left and right ends of the main body of the crossbeam, respectively. During lifting, the left and right lifting rings are connected to the spreader frame via hooks and slings. The left and right grippers have similar structures, both including sleeves, reinforcing plates, load-bearing rods, and support rods. The load-bearing rods of the left and right grippers are arranged facing opposite or opposite directions. The sleeve is slidably fitted onto the crossbeam body, with the inner diameter of the sleeve being larger than the diameter of the crossbeam body (preferably greater than 8mm) to facilitate the sliding of the grippers on the crossbeam body. When the grippers reach the corresponding position, they are limited. Since the limiting structure is existing technology, it will not be described in detail here, but only to ensure the grippers are fixed in place. The limiting sliding structure improves the versatility of the gripper assembly, facilitating the hooking of cab assemblies of different sizes. A reinforcing plate is welded to the outer wall of the sleeve, following its shape, to improve the local stiffness and strength of the sleeve, enhance its load-bearing capacity, and disperse stress to avoid stress concentration. The bearing rod is an approximately L-shaped rod structure welded to the sleeve for locking and fixing with the front suspension. The short arms of the L-shaped rods of the left and right grippers face opposite or opposite directions. Preferably, this invention provides two sets of gripper assemblies: a first gripper assembly and a second gripper assembly. The bearing rods of the corresponding left and right grippers in the first and second gripper assemblies face different directions. In this invention, the short arm sections of the first left and first right grippers are oriented opposite to each other, both facing outwards; the short arm ends of the second left and second right grippers are oriented opposite to each other, both facing inwards. This arrangement is designed to meet the needs of different types of front suspension upper bracket assemblies. The inner side of the first cab's front suspension has space available for the lifting device; the outer side of the first gripper assembly can be pushed into the front suspension for hooking. The inner side of the second cab's front suspension has no space, so the external space of the front suspension can be utilized; the inner side of the second gripper assembly can be pushed into the front suspension for hooking. The pushing and clamping directions of the first and second gripper assemblies are opposite, therefore the orientation of the short arm sections of their corresponding support rods is different, facilitating the spatial arrangement of the gripper grippers. The gripper assembly has a simple structure, is convenient for clamping and hooking, and is low in cost. Two sets of gripper assemblies are installed on the main body of the crossbeam. During the hoisting and transportation process, the idle gripper assemblies are easily scratched and bumped by changes in posture. In order to avoid this problem, the present invention sets corresponding gripper assembly positioning points on the main body of the crossbeam to fix the idle gripper assemblies.

[0010] The rear load-bearing spreader includes two process lifting rings, which are bolted to the left and right ends of the rear suspension of the cab. These rings are connected to the rear end of the spreader frame via hooks and slings. The rear load-bearing spreader and the cab spreader, along with the front load-bearing spreader (used together with the EMS hanger), are used to lift and transport the cab assembly, preventing fatigue damage and breakage at the pin root due to stress concentration. It is simple to use and effective.

[0011] Furthermore, the gripper assembly includes a first gripper assembly and a second gripper assembly. The first gripper assembly and the second gripper assembly have different hooking directions and are used to hook different types of front suspension upper bracket assemblies. The first gripper assembly includes a first left gripper and a first right gripper, and the second gripper assembly includes a second left gripper and a second right gripper. The first left gripper, the first right gripper, the second left gripper, and the second right gripper are respectively limited and slidably sleeved at corresponding positions on the crossbeam body, and do not interfere with each other.

[0012] Furthermore, the main body of the crossbeam is provided with a first gripper assembly positioning point and a second gripper assembly positioning point. The first gripper assembly positioning point includes a first left gripper positioning point and a first right gripper positioning point, and the second gripper assembly positioning point includes a second left gripper positioning point and a second right gripper positioning point. The first left gripper positioning point, the first right gripper positioning point, the second left gripper positioning point, and the second right gripper positioning point are respectively set at corresponding positions on the main body of the crossbeam, which are used to fix the idle gripper assembly during hoisting to prevent the idle gripper assembly from bumping and scratching the paint surface of the cab assembly.

[0013] Furthermore, both the first left gripper and the second left gripper include a left sleeve, a left reinforcing plate, a left bearing rod, and a left support rod. The left reinforcing plate is welded to the outer wall of the left sleeve. The left bearing rod is an approximately L-shaped rod, including a long arm section and a short arm section. One end of the short arm section is perpendicularly fixed to one end of the long arm section, and the other end of the long arm section is welded to the left reinforcing plate. The long arm section is perpendicular to the main body of the crossbeam. The short arm section of the left bearing rod is parallel to the main body of the crossbeam. The left support rod is a Z-shaped rod, including an upper section, a connecting section, and a lower section. The lower section of the left support rod is welded to the left reinforcing plate, and the lower section of the left support rod is perpendicular to the main body of the crossbeam. The short arm sections of the left bearing rod of the first left gripper and the left bearing rod of the second left gripper face opposite directions to match and hook different types of front suspensions.

[0014] Furthermore, both the first and second right grippers include a right sleeve, a right reinforcing plate, a right bearing rod, and a right support rod. The right reinforcing plate is welded to the right sleeve. The right bearing rod is an approximately L-shaped rod, including a long arm section and a short arm section. One end of the short arm section is perpendicularly fixed to one end of the long arm section, and the other end of the long arm section is welded to the left reinforcing plate. The long arm section is perpendicular to the main body of the crossbeam, and the short arm section is parallel to the main body of the crossbeam. The right support rod is a Z-shaped rod, including an upper section, a connecting section, and a lower section. The lower section of the right support rod is welded to the right reinforcing plate, and the lower section of the right support rod is perpendicular to the main body of the crossbeam. The short arm sections of the right bearing rod of the first and second right grippers face opposite directions to match and hook different types of front suspensions.

[0015] A cab lifting device includes a front load-bearing lifting device, a lifting device frame, an EMS hanger, and a rear load-bearing lifting device. The front load-bearing lifting device is the cab front suspension lifting device. The front load-bearing lifting device, the EMS hanger, and the rear load-bearing lifting device are arranged sequentially from front to back on the lifting device frame for lifting and transporting the cab assembly.

[0016] Furthermore, the left and right shackles of the cab-mounted spreader are fixedly connected to the front end of the spreader frame via slings and hooks.

[0017] Furthermore, the rear-mounted spreader includes at least two process lifting rings, which are bolted to the left and right ends of the rear suspension of the cab, respectively. The two process lifting rings are connected to the rear end of the spreader frame via slings and hooks.

[0018] Furthermore, it also includes a remote control, which is electrically connected to the EMS hanger. The EMS hanger is vertically connected to the lifting frame and includes a left fall arrestor and a right fall arrestor. The left and right fall arrestors are fixedly connected to the left and right sides of the bottom of the EMS hanger, respectively. The EMS hanger lowers to place the left and right fall arrestors into the upper door frame of the cab and fix them in place to complete the fixed hoisting of the cab assembly.

[0019] A lifting method, using the aforementioned cab-mounted lifting device, includes the following steps:

[0020] S1. First, use the remote control to lower the EMS attachment to a suitable height, and then place the left and right fall arrestors of the EMS attachment into the upper door frame of the cab for fixation.

[0021] S2. Select the corresponding gripper assembly on the front suspension hanger of the cab according to the model of the cab assembly, clamp the front suspension of the cab with the selected gripper assembly, fix the idle gripper assembly to the corresponding first gripper assembly positioning point or second gripper assembly positioning point respectively, and hang the corresponding hook into the left and right lifting rings respectively.

[0022] S3. Fix the two process lifting rings to the left and right ends of the rear suspension of the cab with bolts, and hang the rear load hook into the process lifting rings.

[0023] S4. Then lift and transfer the cab assembly.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1. The cab lifting device of the present invention includes a front load-bearing lifting device, an EMS hanger, and a rear load-bearing lifting device. The cab assembly is lifted and transported by the front load-bearing lifting device and the rear load-bearing lifting device in conjunction with the EMS hanger, which solves the problems of fatigue damage and breakage at the root of the pin caused by stress concentration.

[0026] 2. The front-load-bearing spreader designed in this invention, namely the cab front suspension spreader, improves the versatility of the spreader's grippers by using a gripper assembly that is limited and slidably sleeved on the lifting beam. It can also be matched with different types of cab front suspensions by using two sets of gripper assemblies.

[0027] 3. The cab-mounted lifting device of the present invention has high lifting stability, and each gripper is designed with a load-bearing rod and a support rod to avoid stress concentration points;

[0028] 4. The clamping structure of the cab front suspension hoist of the present invention is simple and the clamping operation is convenient. The two sets of clamping assemblies correspond to the two sets of clamping assembly positioning points. When one set of clamping assemblies is used for hoisting and transportation, the idle clamping assemblies are fixed on the corresponding clamping assembly positioning points, which can prevent the idle clamping assemblies from bumping and scratching the cab paint surface during the hoisting process. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the cab-mounted suspension device of the present invention.

[0030] Figure 2 This is a schematic diagram of the cab lifting device of the present invention.

[0031] In the picture: 1. Lifting beam; 1.1. Beam body; 1.11. First gripper assembly positioning point; 1.111. First left gripper positioning point; 1.112. First right gripper positioning point; 1.12. Second gripper assembly positioning point; 1.121. Second left gripper positioning point; 1.122. Second right gripper positioning point; 1.2. Left lifting ring; 1.3. Right lifting ring; 2. Gripper assembly; 2.1. First gripper assembly; 2.11. First left gripper; 2.111. Left side sleeve; 2.112. Left side reinforcing plate; 2.113. Left bearing rod; 2.114. Left support rod; 2.12. First right gripper; 2.121. Right sleeve; 2.122. Right reinforcing plate; 2.123. Right bearing rod; 2.124. Right support rod; 2.2. Second gripper assembly; 2.21. Second left gripper; 2.22. Second right gripper; 3. Front bearing spreader; 4. Spreader frame; 5. EMS hanger; 6. Rear bearing spreader; 6.1. Process lifting ring; 7. Cab assembly; 8. Front suspension upper bracket assembly. Detailed Implementation

[0032] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0035] The following combination Figure 1 , Figure 2 The present invention will be described in conjunction with the embodiments:

[0036] Example 1:

[0037] A cab-mounted front suspension device, see Figure 1 As shown, the system includes a lifting beam 1 and a gripper assembly 2. The lifting beam 1 includes a beam body 1.1, a left lifting ring 1.2, and a right lifting ring 1.3. The beam body 1.1 is a cylindrical rod. The left lifting ring 1.2 and the right lifting ring 1.3 are fixedly connected to the left and right ends of the beam body 1.1, respectively. The gripper assembly 2 includes a left gripper and a right gripper. The left gripper and the right gripper are slidably fitted onto the beam body 1.1 between the left lifting ring 1.2 and the right lifting ring 1.3. The left gripper and the right gripper are matched with the cab front suspension upper bracket assembly 8. The hooking directions of the left gripper and the right gripper in each set are opposite or back to back, used to hook different types of cab front suspension assemblies.

[0038] The gripper assembly 2 includes a first gripper assembly 2.1 and a second gripper assembly 2.2. The first gripper assembly 2.1 includes a first left gripper 2.11 and a first right gripper 2.12. The second gripper assembly 2.2 includes a second left gripper 2.21 and a second right gripper 2.22. The first left gripper 2.11, the first right gripper 2.12, the second left gripper 2.21, and the second right gripper 2.22 are respectively limited and slidably sleeved at corresponding positions on the crossbeam body 1.1 for hooking different types of front suspension assemblies.

[0039] The main body of the crossbeam 1.1 is provided with a first gripper assembly positioning point 1.11 and a second gripper assembly positioning point 1.12. The first gripper assembly positioning point 1.11 includes a first left gripper positioning point 1.111 and a first right gripper positioning point 1.112. The second gripper assembly positioning point 1.12 includes a second left gripper positioning point 1.121 and a second right gripper positioning point 1.122. The first left gripper positioning point 1.111, the first right gripper positioning point 1.112, the second left gripper positioning point 1.121 and the second right gripper positioning point 1.122 are respectively welded to the corresponding positions on the main body of the crossbeam 1.1 to fix the gripper assembly 2 that is not in use during hoisting and to prevent the gripper assembly 2 from bumping and scratching the cab assembly 7 during hoisting.

[0040] Both the first left gripper 2.11 and the second left gripper 2.21 include a left sleeve 2.111, a left reinforcing plate 2.112, a left bearing rod 2.113, and a left support rod 2.114. The left reinforcing plate 2.112 is welded to the outer wall of the left sleeve 2.111. The left bearing rod 2.113 is an approximately L-shaped rod, including a long arm section and a short arm section. One end of the short arm section is perpendicularly fixed to one end of the long arm section, and the other end of the long arm section is welded to the left reinforcing plate 2.112. The long arm section is perpendicular to the main body of the crossbeam 1.1. The short arm section of the left-side load-bearing rod 2.113 is parallel to the main body of the crossbeam 1.1. The left-side support rod 2.114 is a Z-shaped rod, including an upper section, a connecting section, and a lower section. The lower section of the left-side support rod 2.114 is welded to the left-side reinforcing plate 2.112. The lower section of the left-side support rod 2.114 is perpendicular to the main body of the crossbeam 1.1. The short arm sections of the left-side load-bearing rod 2.113 of the first left gripper 2.11 and the short arm sections of the left-side load-bearing rod 2.113 of the second left gripper 2.21 face opposite directions and are used to hook different types of cab front suspension assemblies.

[0041] Both the first right gripper 2.12 and the second right gripper 2.22 include a right sleeve 2.121, a right reinforcing plate 2.122, a right bearing rod 2.123, and a right support rod 2.124. The right reinforcing plate 2.122 is welded to the outer wall of the right sleeve 2.121. The right bearing rod 2.123 is an approximately L-shaped rod, including a long arm section and a short arm section. One end of the short arm section is perpendicularly fixed to one end of the long arm section, and the other end of the long arm section is welded to the right reinforcing plate 2.122. The long arm section is connected to the main beam. The body 1.1 is vertical, and the short arm section is parallel to the main body 1.1 of the crossbeam. The right support rod 2.124 is a Z-shaped rod, including an upper section, a connecting section and a lower section. The lower section of the right side support rod 2.124 is welded to the right side reinforcing plate 2.122. The lower section of the right support rod 2.124 is perpendicular to the main body 1.1 of the crossbeam. The short arm sections of the right bearing rod 2.123 of the first right gripper 2.12 and the right bearing rod 2.123 of the second right gripper 2.22 face opposite directions and are used to hook different types of front suspensions.

[0042] In this embodiment, the short arm of the bearing rod of the first left gripper 2.11 faces to the left, the short arm of the bearing rod of the first right gripper 2.12 faces to the right, the short arm of the bearing rod of the second left gripper 2.21 faces to the right, and the short arm of the bearing rod of the second right gripper 2.22 faces to the left. The first left gripper 2.11 and the first right gripper 2.12 are used when there is space available for the lifting device on the inside, and the outer side of the gripper can be pushed to engage with the front suspension of the cab. The second left gripper 2.21 and the second right gripper 2.22 are used when there is no space on the inside, and the lifting device can utilize the external space of the front suspension, and the inner side of the gripper can be pushed to engage with the front suspension of the cab.

[0043] Example 2:

[0044] The present invention also provides a cab lifting device, see Figure 2 As shown, it includes a front load-bearing spreader 3, a spreader frame 4, an EMS hanger 5, and a rear load-bearing spreader 6. The front load-bearing spreader 3 is the aforementioned front suspension spreader for the cab. The front load-bearing spreader 3, the EMS hanger 5, and the rear load-bearing spreader 6 are arranged sequentially from front to back on the spreader frame 4 for lifting and transporting the cab assembly 7.

[0045] The left and right lifting rings 1.2 and 1.3 of the cab-mounted front suspension are fixedly connected to the front end of the suspension frame 4 via slings and hooks.

[0046] The rear load-bearing spreader 6 includes at least two process lifting rings 6.1. The two process lifting rings 6.1 are bolted to the left and right ends of the rear suspension of the cab, respectively. The two process lifting rings 6.1 are connected to the rear end of the spreader frame 4 through slings and hooks.

[0047] It also includes a remote control, which is electrically connected to the EMS mount 5. The EMS mount 5 is liftably connected to the lifting frame 4 and includes a left fall protection device and a right fall protection device. The left fall protection device and the right fall protection device are respectively fixedly connected to the left and right sides of the bottom of the EMS mount 5. The EMS mount 5 lowers and places the left fall protection device and the right fall protection device into the upper door frame of the cab to fix them, thus completing the fixed hoisting of the cab assembly 7.

[0048] Example 3:

[0049] The present invention also provides a lifting method, using the aforementioned cab lifting device, comprising the following steps:

[0050] S1. First, use the remote control to lower the EMS mount 5 to a suitable height, and then place the left and right anti-fall devices of the EMS mount 5 into the upper door frame of the cab for fixation.

[0051] S2. Select the corresponding gripper assembly 2 on the front suspension hanger of the cab according to the model of the cab assembly, clamp the front suspension of the cab with the selected gripper assembly 2, fix the idle gripper assembly 2 to the corresponding first gripper assembly positioning point 1.11 or second gripper assembly positioning point 1.12 respectively, and hang the corresponding hooks into the left lifting ring 1.2 and right lifting ring 1.3 respectively.

[0052] S3. Fix the two process lifting rings 6.1 to the left and right ends of the rear suspension of the cab with bolts, and hang the rear load hook into the process lifting rings 6.1;

[0053] S4. Then lift and transfer the cab assembly.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cab-mounted suspension device, characterized in that, The system includes a lifting beam (1) and at least one set of gripper assemblies (2). The lifting beam (1) includes a beam body (1.1), a left lifting ring (1.2), and a right lifting ring (1.3). The beam body (1.1) is a cylindrical rod. The left lifting ring (1.2) and the right lifting ring (1.3) are fixedly connected to the left and right ends of the beam body (1.1), respectively. The gripper assembly (2) includes a left gripper and a right gripper. The left gripper and the right gripper are slidably fitted onto the beam body (1.1) between the left lifting ring (1.2) and the right lifting ring (1.3). The left gripper and the right gripper are matched with the cab front suspension upper bracket assembly (8). The hooking directions of the left gripper and the right gripper in each set are opposite or opposite to each other, and are used to hook different types of cab front suspension assemblies.

2. The cab-mounted suspension device according to claim 1, characterized in that, The gripper assembly (2) includes a first gripper assembly (2.1) and a second gripper assembly (2.2). The first gripper assembly (2.1) and the second gripper assembly (2.2) have different hooking directions and are used to hook different types of front suspension upper bracket assemblies. The first gripper assembly (2.1) includes a first left gripper (2.11) and a first right gripper (2.12). The second gripper assembly (2.2) includes a second left gripper (2.21) and a second right gripper (2.22). The first left gripper (2.11), the first right gripper (2.12), the second left gripper (2.21), and the second right gripper (2.22) are respectively limited and slidably sleeved on the corresponding positions of the crossbeam body (1.1) and do not interfere with each other.

3. The cab-mounted suspension device according to claim 2, characterized in that, The main body of the crossbeam (1.1) is provided with a first gripper assembly positioning point (1.11) and a second gripper assembly positioning point (1.12). The first gripper assembly positioning point (1.11) includes a first left gripper positioning point (1.111) and a first right gripper positioning point (1.112). The second gripper assembly positioning point (1.12) includes a second left gripper positioning point (1.121) and a second right gripper positioning point (1.122). The first left gripper positioning point (1.111), the first right gripper positioning point (1.112), the second left gripper positioning point (1.121), and the second right gripper positioning point (1.122) are respectively welded to the corresponding positions of the main body of the crossbeam (1.1) for fixing the idle gripper assembly (2) during hoisting to prevent the idle gripper assembly (2) from bumping and scratching the paint surface of the cab assembly (7).

4. The cab-mounted suspension device according to claim 3, characterized in that, Both the first left gripper (2.11) and the second left gripper (2.21) include a left sleeve (2.111), a left reinforcing plate (2.112), a left bearing rod (2.113), and a left support rod (2.114). The left reinforcing plate (2.112) is welded to the outer wall of the left sleeve (2.111). The left bearing rod (2.113) is an approximately L-shaped rod, including a long arm section and a short arm section. One end of the short arm section is perpendicularly fixed to one end of the long arm section, and the other end of the long arm section is welded to the left reinforcing plate (2.112). The long arm section is perpendicular to the main body of the crossbeam (1.1). The short arm section of the left bearing rod (2.113) is parallel to the main body of the crossbeam (1.1). The left support rod (2.114) is a Z-shaped rod, including an upper section, a connecting section and a lower section. The lower section of the left support rod (2.114) is welded to the left reinforcing plate (2.112). The lower section of the left support rod (2.114) is perpendicular to the main body of the crossbeam (1.1). The short arm section of the left bearing rod (2.113) of the first left gripper (2.11) and the short arm section of the left bearing rod (2.113) of the second left gripper (2.21) face opposite directions and are used to hook different types of cab front suspension assemblies.

5. The cab-mounted suspension device according to claim 3, characterized in that, Both the first right gripper (2.12) and the second right gripper (2.22) include a right sleeve (2.121), a right reinforcing plate (2.122), a right bearing rod (2.123), and a right support rod (2.124). The right reinforcing plate (2.122) is welded to the outer wall of the right sleeve (2.121). The right bearing rod (2.123) is an approximately L-shaped rod, including a long arm section and a short arm section. One end of the short arm section is perpendicularly fixed to one end of the long arm section, and the other end of the long arm section is welded to the right reinforcing plate (2.122). The long arm section is connected to the main body of the crossbeam. (1.1) Vertical, the short arm section is parallel to the main body of the crossbeam (1.1), the right support rod (2.124) is a Z-shaped rod, including the upper section, the connecting section and the lower section. The lower section of the right side support rod (2.124) is welded to the right reinforcing plate (2.122). The lower section of the right support rod (2.124) is perpendicular to the main body of the crossbeam (1.1). The short arm section of the right bearing rod (2.123) of the first right gripper (2.12) and the short arm section of the right bearing rod (2.123) of the second right gripper (2.22) face opposite directions and are used to hook different types of front suspensions.

6. A cab-mounted lifting device, characterized in that, It includes a front load-bearing lifting device (3), a lifting device frame (4), an EMS hanger (5), and a rear load-bearing lifting device (6). The front load-bearing lifting device (3) is the cab front suspension lifting device as described in any one of claims 1-5. The front load-bearing lifting device (3), the EMS hanger (5), and the rear load-bearing lifting device (6) are arranged sequentially from front to back on the lifting device frame (4) for lifting and transporting the cab assembly (7).

7. The cab-mounted lifting device according to claim 6, characterized in that, The left and right lifting rings (1.2 and 1.3) of the cab front suspension hoist are fixedly connected to the front end of the hoist frame (4) by slings and hooks.

8. The cab-mounted lifting device according to claim 6, characterized in that, The rear load-bearing spreader (6) includes at least two process lifting rings (6.1). The two process lifting rings (6.1) are bolted to the left and right ends of the rear suspension of the cab, respectively. The two process lifting rings (6.1) are connected to the rear end of the spreader frame (4) by slings and hooks.

9. The cab-mounted lifting device according to claim 6, characterized in that, It also includes a remote control, which is electrically connected to the EMS hanger (5). The EMS hanger (5) can be lifted and connected to the lifting frame (4). It includes a left fall protection device and a right fall protection device. The left fall protection device and the right fall protection device are respectively fixedly connected to the left and right sides of the bottom of the EMS hanger (5). The EMS hanger (5) lowers and places the left fall protection device and the right fall protection device into the upper door frame position of the cab to fix and complete the fixed hoisting of the cab assembly (7).

10. A lifting method, characterized in that, The steps of using the cab-mounted spreader as described in any one of claims 6-9 include: S1. First, control the EMS hanger (5) to descend using the remote control. After descending to a suitable height, place the left and right anti-fall devices of the EMS hanger (5) on the upper door frame of the cab for fixation. S2. Select the corresponding gripper assembly (2) on the front suspension hanger of the cab according to the model of the cab assembly, clamp the front suspension of the cab with the selected gripper assembly (2), fix the idle gripper assembly (2) on the corresponding first gripper assembly positioning point (1.11) or second gripper assembly positioning point (1.12), and hang the corresponding hooks into the left lifting ring (1.2) and right lifting ring (1.3) respectively. S3. Fix the two process lifting rings (6.1) to the left and right ends of the rear suspension of the cab with bolts, and hang the rear load hook into the process lifting rings (6.1); S4. Then lift and transfer the cab assembly (7).

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