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CN-122009959-A - Cab front suspension lifting appliance, cab lifting appliance and lifting method

CN122009959ACN 122009959 ACN122009959 ACN 122009959ACN-122009959-A

Abstract

The invention belongs to the technical field of automobile slings, and discloses a cab front suspension sling, a cab sling and a lifting method, comprising a lifting beam and a clamping jaw assembly, wherein the lifting beam comprises a beam main body, a left lifting ring and a right lifting ring which are respectively and fixedly connected with the left end and the right end of the beam main body, the clamping jaw assembly comprises a left clamping jaw and a right clamping jaw, the left clamping jaw and the right clamping jaw are in limiting sliding sleeve connection with a beam main body between the left hanging ring and the right hanging ring, and the left clamping jaw and the right clamping jaw are matched with the front suspension upper bracket assembly of the cab. The clamping jaw assembly is in limit sliding sleeve connection on the hoisting beam, so that the universality of the clamping jaw is improved, the clamping jaw assembly positioning points are arranged on the hoisting beam, collision and scratch of the clamping jaw assembly to a cab are prevented, the clamping jaw is provided with the bearing rod and the supporting rod, no stress concentration point is caused, and the front suspension lifting appliance and the rear bearing end lifting appliance of the cab are arranged in front of and behind an EMS (electromagnetic system) hanger, so that the problem of damage and fracture of the root of a pin column caused by the concentration of hoisting stress of the cab is avoided.

Inventors

  • YAN PENG
  • HU BIAO
  • LIU SUYANG
  • LIU JIWEI

Assignees

  • 一汽解放汽车有限公司

Dates

Publication Date
20260512
Application Date
20260331

Claims (10)

  1. 1. The utility model provides a suspension hoist before driver's cabin, its characterized in that, including hoist and mount crossbeam (1) and at least a set of clamping jaw subassembly (2), hoist and mount crossbeam (1) include crossbeam main part (1.1), left rings (1.2) and right rings (1.3), and crossbeam main part (1.1) are cylindrical member, left rings (1.2) and right rings (1.3) are fixed connection respectively in both ends about crossbeam main part (1.1), clamping jaw subassembly (2) include left clamping jaw and right clamping jaw, and left clamping jaw and the spacing slip of right clamping jaw cup joint on crossbeam main part (1.1) between left rings (1.2) and right rings (1.3), and left clamping jaw and right clamping jaw all with the preceding suspension bracket assembly (8) phase-match of driver's cabin, the hook direction of left clamping jaw and right clamping jaw of every group is relative or opposite for the suspension assembly before the different grade type of hook.
  2. 2. The cab front suspension sling as defined in claim 1, wherein the jaw assembly (2) comprises a first jaw assembly (2.1) and a second jaw assembly (2.2), the first jaw assembly (2.1) and the second jaw assembly (2.2) are different in hooking directions and are used for hooking different types of front suspension upper bracket assemblies, the first jaw assembly (2.1) comprises a first left jaw (2.11) and a first right jaw (2.12), the second jaw assembly (2.2) comprises a second left jaw (2.21) and a second right jaw (2.22), and the first left jaw (2.11), the first right jaw (2.12), the second left jaw (2.21) and the second right jaw (2.22) are respectively in limiting sliding sleeve connection at positions corresponding to the beam main body (1.1) and do not interfere with each other.
  3. 3. The front cab suspension sling as defined in claim 2, wherein a beam body (1.1) is provided with a first clamping jaw assembly positioning point (1.11) and a second clamping jaw assembly positioning point (1.12) respectively, the first clamping jaw assembly positioning point (1.11) comprises a first left clamping jaw positioning point (1.111) and a first right clamping jaw positioning point (1.112), the second clamping jaw assembly positioning point (1.12) comprises a second left clamping jaw positioning point (1.121) and a second right clamping jaw positioning point (1.122), the first left clamping jaw positioning point (1.111), the first right clamping jaw positioning point (1.112), the second left clamping jaw positioning point (1.121) and the second right clamping jaw positioning point (1.122) are welded on corresponding positions of the beam body (1.1) respectively, and are used for fixing an idle clamping jaw assembly (2) during lifting so as to avoid the idle clamping jaw assembly (2) from knocking and scratching a paint surface of the cab assembly (7).
  4. 4. A cab front suspension spreader according to claim 3, characterized in that the first left clamping jaw (2.11) and the second left clamping jaw (2.21) each comprise a left sleeve (2.111), a left reinforcing plate (2.112), a left supporting rod (2.113) and a left supporting rod (2.114), the left reinforcing plate (2.112) is welded on the outer tube wall of the left sleeve (2.111), the left supporting rod (2.113) is an approximately L-shaped rod and comprises a long arm section and a short arm section, one end of the short arm section is fixedly connected with one end of the long arm section in a vertical manner, the other end of the long arm section is welded on the left reinforcing plate (2.112), the long arm section is perpendicular to the beam main body (1.1), the short arm section of the left supporting rod (2.113) is parallel to the beam main body (1.1), the left supporting rod (2.114) is a Z-shaped rod, the lower section of the left supporting rod (2.114) is welded on the upper side reinforcing plate (2.112), one end of the left supporting rod (24) faces the left supporting rod (52.83) and the other end of the left clamping jaw (21) is opposite to the left clamping jaw main body (2.11).
  5. 5. A cab front suspension spreader according to claim 3, characterized in that the first right jaw (2.12) and the second right jaw (2.22) each comprise a right sleeve (2.121), a right reinforcing plate (2.122), a right support bar (2.123) and a right support bar (2.124), the right reinforcing plate (2.122) is welded to the outer wall of the right sleeve (2.121), the right support bar (2.123) is an approximately L-shaped bar comprising a long arm section and a short arm section, one end of the short arm section is fixedly connected with one end of the long arm section, the other end of the long arm section is welded to the right reinforcing plate (2.122), the long arm section is perpendicular to the beam body (1.1), the short arm section is parallel to the beam body (1.1), the right support bar (2.124) is a Z-shaped bar comprising an upper section, a connecting section and a lower section, the lower section of the right support bar (2.124) is welded to the right reinforcing plate (2.122), the lower section of the right support bar (2.124) is perpendicular to the first type of the right support bar (2.2.123) and the opposite to the first jaw (2.2.2) of the right support bar.
  6. 6. Cab lifting appliance, which is characterized by comprising a front bearing lifting appliance (3), a lifting appliance frame (4), an EMS hanging tool (5) and a rear bearing lifting appliance (6), wherein the front bearing lifting appliance (3) is the cab front suspension lifting appliance according to any one of claims 1-5, and the front bearing lifting appliance (3), the EMS hanging tool (5) and the rear bearing lifting appliance (6) are sequentially arranged on the lifting appliance frame (4) from front to back and are used for lifting and transferring of a cab assembly (7).
  7. 7. The cab lifting appliance according to claim 6, wherein the left lifting ring (1.2) and the right lifting ring (1.3) of the cab front suspension lifting appliance are fixedly connected with the front end of the lifting appliance frame (4) through a hanging strip and a lifting hook.
  8. 8. The cab lifting appliance according to claim 6, wherein the rear load-bearing lifting appliance (6) comprises at least two process lifting eyes (6.1), the two process lifting eyes (6.1) are respectively screwed and fixed on the left and right ends of the cab rear suspension through bolts, and the two process lifting eyes (6.1) are connected with the rear ends of the lifting appliance frame (4) through hanging straps and hanging hooks.
  9. 9. The cab lifting appliance according to claim 6, further comprising a remote controller, wherein the remote controller is electrically connected with the EMS hanging tool (5), the EMS hanging tool (5) is connected to the lifting appliance frame (4) in a lifting manner, the remote controller comprises a left falling prevention device and a right falling prevention device, the left falling prevention device and the right falling prevention device are respectively and fixedly connected to the left side and the right side of the bottom of the EMS hanging tool (5), and the EMS hanging tool (5) places the left falling prevention device and the right falling prevention device into the door frame position of the cab through descending to fix and lift the cab assembly (7).
  10. 10. A hoisting method, characterized in that a cab spreader according to any one of claims 6-9 is applied, the steps comprising: S1, firstly controlling an EMS hanger (5) to descend through a remote controller, and after the EMS hanger is lowered to a proper height, placing a left anti-falling device and a right anti-falling device of the EMS hanger (5) on a door frame position on a cab for fixing; s2, selecting a corresponding clamping jaw assembly (2) on the cab front suspension lifting appliance according to the vehicle type of the cab assembly, clamping the cab front suspension by using the selected clamping jaw assembly (2), respectively fixing the idle clamping jaw assembly (2) on a corresponding first clamping jaw assembly locating point (1.11) or a corresponding second clamping jaw assembly locating point (1.12), and respectively hanging the corresponding lifting hook into a left lifting ring (1.2) and a right lifting ring (1.3); S3, respectively fixing two process hanging rings (6.1) on the left end and the right end of the rear suspension of the cab through bolts, and hanging a hanging hook borne at the rear into the process hanging rings (6.1); s4, lifting and transferring the cab assembly (7).

Description

Cab front suspension lifting appliance, cab lifting appliance and lifting method Technical Field The invention belongs to the technical field of automobile spreaders, and particularly relates to a cab front suspension spreader, a cab spreader and a hoisting method. Background In the process of truck production, assembly and maintenance, the lifting operation of a cab is a key process, and the safety, stability and operation efficiency of the cab directly influence the production progress and the product quality. The cab is used as one of core components of the truck, has a complex structure and high weight, and is required to be lifted stably and reliably through the special lifting appliance in the lifting process, so that the damage to the cab structure and the surface paint surface is avoided. At present, a plurality of lifting slings for truck cabs exist in the industry, wherein patent CN202320734835.4 discloses a vehicle cab lifting sling, a whole vehicle assembly system and a workpiece lifting sling, which are mainly designed optimally aiming at the lifting position of a lifting arm to try to lift the rationality of the lifting process, but the patent still has a plurality of technical defects, and cannot meet the diversified demands in actual production. In particular, the patent does not disclose a specific clamping structure and a lifting mode of a lifting tool clamping jaw, the problems of the clamping jaw and the cab of the clamping jaw in adapting and stable clamping cannot be solved, meanwhile, the front suspension structure forms of the truck cab are various, the front suspension sizes and the structure differences of the truck cabs of different types and specifications are large, the prior lifting tool is poor in universality because of not considering the structural diversity, the clamping tool cannot be adapted to cabs of various types, and special lifting tools are required to be arranged for cabs of different front suspension structures, so that the production and maintenance cost is increased, and the operation efficiency is reduced. In addition, the front bearing end clamping jaw structural design of the existing lifting appliance has the problems of redundancy and complexity, the weight of the lifting appliance is increased due to complex structure, the operation difficulty is increased when an operator hangs and clamps the lifting appliance, the protruding structure of the clamping jaw is extremely easy to contact and rub with the surface of the cab, and then the paint surface of the cab is bumped and scratched, so that the appearance quality of a product is influenced. Meanwhile, in the lifting process of the existing lifting tool, most of the weight of a cab acts on the pin structure in a concentrated manner, so that serious stress concentration phenomenon is generated at the root of the pin, and after long-term use, the root of the pin is easy to cause fatigue damage, fracture and other problems, so that great potential safety hazards exist. In summary, the existing truck cab lifting tool has the technical defects of poor universality, complex clamping jaw structure, easy damage to the paint surface of the cab, concentrated stress, easy damage and the like, and cannot meet the high-efficiency, safe and stable lifting requirements in the truck production, assembly and maintenance processes, so that the development of the clamping jaw and the lifting method of the truck cab lifting tool capable of solving the problems is a technical problem to be solved by the current technical personnel in the field. Disclosure of Invention The invention aims to provide a cab front suspension sling, a cab sling and a lifting method, wherein clamping jaw assemblies of the cab front suspension sling are designed to be limited and sleeved on a lifting beam in a sliding manner, two groups of clamping jaw assembly positioning points are designed on the lifting beam, each clamping jaw is simple in structure, convenient to clamp and provided with a bearing rod and a supporting rod, no stress concentration point is arranged, universality of the clamping jaw is improved, the cab front suspension sling is suitable for cab front suspension structures of different types and without lifting holes, collision and scratch on a cab paint surface caused by idle clamping jaw assemblies in the lifting process can be prevented, lifting stability is high, and the cab sling is used as a front bearing end sling and a rear bearing end sling to be matched together through mounting the cab front suspension sling on a lifting frame in front of and behind an EMS (electromagnetic system) hanger, so that the cab assembly is lifted and transported, and the problems of fatigue damage, breakage and the like of the root of a pin are avoided due to stress concentration. The specific scheme comprises the following steps: The utility model provides a suspension hoist before driver's cabin, including hoist and mount crossbeam and at leas