Static lifting test device for casting saddle

Abstract

The utility model discloses a static lifting test device for a cast saddle, relates to the technical field of traction seats, and aims to solve the problems that the distance between an action point and the center of a traction pin cannot be adjusted in real time, the length of a force arm cannot be effectively adjusted according to the strength of the saddle, and the practicability is low in the background technology. According to the technical scheme, the traction device comprises a workbench and a traction seat assembly connected to the outer wall of the top of the workbench through bolts, a connecting mechanism is arranged on the traction seat assembly and comprises a connecting plate and an acting arm, a mounting frame is fixedly arranged on one side of the workbench, an adjusting mechanism is arranged on the mounting frame, and the adjusting mechanism is arranged on the workbench. The adjusting mechanism comprises a mounting plate connected to the outer wall of the top of the mounting frame through a bolt and a fixing plate connected to the outer wall of one side of the mounting frame through a bolt. The distance between an action point and the center of the traction pin can be adjusted, the length of a force arm is adjusted in real time according to the strength of a saddle, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fifth wheels, in particular to a static lifting test device for a casting saddle. Background Art

[0002] The saddle, also known as the fifth wheel, is a load-bearing component used by a cargo tractor to tow a semi-trailer. It is a chassis component that has the function of engaging and locking with the semi-trailer's towing pin through a locking mechanism, and can transmit horizontal and vertical forces between the semi-trailer tractor and the semi-trailer. After the production of the fifth wheel is completed, a static lifting test is required for the fifth wheel.

[0003] After searching, a Chinese patent (application number "201821119272.3") discloses "a static lifting test loading mechanism for a tractor traction seat assembly". The above-mentioned loading mechanism includes a gantry, a crossbeam, an actuator, a boom, a pin shaft, a loading plate, a crossbeam connecting plate, a support plate, a traction seat assembly, a base plate, and a traction pin; the base plate is fixed on the iron floor; the traction seat assembly is fixed on the base plate; the crossbeam connecting plate and the support plate are both fixed on the lower end of the crossbeam; the traction pin is fixed to the crossbeam connecting plate; the traction pin cooperates with the traction seat assembly; the loading end of the crossbeam is fixed to the loading plate and connected to the boom through a pin shaft; the upper end of the actuator is fixed to the gantry, and the lower end is connected to the boom. However, during use, the above-mentioned loading mechanism cannot adjust the distance between the point of action and the center of the traction pin in real time, and cannot effectively adjust the length of the force arm according to the strength of the saddle, and has low practicality. Utility Model Content

[0004] The utility model provides a static lifting test device for a cast saddle, which solves the problems of low practicality in that the comparative documents cannot adjust the distance between the action point and the center of the traction pin in real time, cannot effectively adjust the length of the force arm according to the strength of the saddle.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The cam is connected to the upper end of the cam frame by a bolt, and the cam frame is connected to the upper end of the cam frame by a bolt.

[0007] Preferably, the connecting plate is connected to the top outer wall of the fifth wheel assembly by bolts, and the action arm is connected to the top outer wall of the connecting plate by bolts.

[0008] Preferably, one end of the screw is connected to the outer wall of one side of the fixed plate through a bearing, two first limiting rods are fixed on the outer wall of one side of the fixed plate, and one end of the two first limiting rods are respectively fixed on the outer wall of one side of the workbench.

[0009] Preferably, the threaded block is screwed onto the outer wall of the screw rod, two limit blocks are fixedly provided on the outer wall of the bottom of the mounting seat, and the two limit blocks are slidably mounted on the outer walls of the two first limit rods respectively.

[0010] Through the above scheme, the screw is driven to rotate by adjusting the output shaft of the motor, and the screw drives the threaded block and the mounting seat to move. At the same time, the two limit blocks move along the two first limit rods, thereby adjusting the position of the lifting cylinder, and then adjusting the distance between the action point and the center of the traction pin.

[0011] Preferably, a slide is opened on the outer wall at the center of the top of the mounting plate along the length direction, and the lifting cylinder piston rod is slidably sleeved in the slide, two second limit rods are fixed on the outer wall of the bottom of the fixing frame, and channels are opened on the outer walls on both sides of the slide at the top of the mounting plate, and the two second limit rods are slidably installed in the two channels respectively.

[0012] Through the above scheme, the piston rod of the lifting cylinder rises, and the rising piston rod drives the lifting roller to rise and contact the working arm. The piston rod continues to rise and lifts the working arm. At the same time, the lifting cylinder records the magnitude of the force acting on the working arm.

[0013] Preferably, the regulating motor is connected to a reverse switch via a wire, and the reverse switch is connected to a power line.

[0014] The beneficial effects of the utility model are:

[0015] The output shaft of the regulating motor rotates to drive the screw to rotate, and the screw drives the threaded block and the mounting seat to move. At the same time, the two limit blocks move along the two first limit rods, thereby adjusting the position of the lifting cylinder, and then adjusting the distance between the action point and the center of the traction pin. The piston rod of the lifting cylinder rises, and the rising piston rod drives the lifting roller to rise and contact the action arm. The piston rod continues to rise and lifts the action arm. At the same time, the lifting cylinder records the magnitude of the force acting on the action arm, and can adjust the distance between the action point and the center of the traction pin. The length of the force arm is adjusted in real time according to the strength of the saddle, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall main structure of a static lifting test device for a casting saddle proposed by the utility model.

[0017] Figure 2 The utility model provides a schematic diagram of the main structure of the connection mechanism of the static lifting test device for a casting saddle.

[0018] Figure 3 The utility model provides a schematic diagram of the main structure of the adjustment mechanism of the static lifting test device for a casting saddle.

[0019] Figure 4 The utility model provides a bottom-up structural schematic diagram of the installation assembly of a static lifting test device for a casting saddle.

[0020] Figure 5 This is a schematic diagram of the main structure of a lifting component of a static lifting test device for a cast saddle proposed by the utility model.

[0021] In the figure: 1. Workbench; 2. Traction seat assembly; 3. Connecting mechanism; 301. Connecting plate; 302. Action arm; 4. Mounting frame; 5. Adjusting mechanism; 501. Mounting plate; 502. Fixing plate; 503. Adjusting motor; 504. Screw; 505. First limiting rod; 6. Mounting assembly; 601. Mounting seat; 602. Threaded block; 603. Limiting block; 7. Lifting assembly; 701. Lifting cylinder; 702. Fixing frame; 703. Lifting roller; 704. Second limiting rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Example 1, reference Figure 1-3 A static lifting test device for a cast saddle includes a workbench 1 and a traction seat assembly 2 connected to the top outer wall of the workbench 1 by bolts. The traction seat assembly 2 is provided with a connecting mechanism 3, which includes a connecting plate 301 and an action arm 302. The connecting plate 301 is connected to the top outer wall of the traction seat assembly 2 by bolts, and the action arm 302 is connected to the top outer wall of the connecting plate 301 by bolts. The action arm 302 is an I-beam.

[0024] Example 2, reference Figure 1 and 4 , a static lifting test device for a casting saddle, further comprising a mounting frame 4 fixedly mounted on the outer wall of one side of a workbench 1, the mounting frame 4 being composed of a plurality of groups of square tubes welded together, an adjusting mechanism 5 being provided on the mounting frame 4, the adjusting mechanism 5 comprising a mounting plate 501 connected to the outer wall of the top of the mounting frame 4 by bolts, a fixing plate 502 connected to the outer wall of one side of the mounting frame 4 by bolts, an adjusting motor 503 connected to the inner wall of the lower portion of one side of the workbench 1 by bolts, and a screw 504 on the outer wall of one end of the output shaft of the adjusting motor 503 connected to the outer wall by a coupling, one end of the screw 504 being connected to the outer wall of one side of the fixing plate 502 by a bearing, two first limiting rods 505 being fixedly mounted on the outer wall of one side of the fixing plate 502, one end of the two first limiting rods 505 being respectively fixed to the outer wall of one side of the workbench 1, a mounting assembly 6 being provided on the screw 504, the mounting assembly 6 comprising a mounting seat 601 and a fixing member 601 on the outer wall of the bottom of the mounting seat 601 The threaded block 602 is screwed to the outer wall of the screw rod 504, and two limit blocks 603 are fixed on the outer wall of the bottom of the mounting seat 601. The two limit blocks 603 are respectively slidably installed on the outer walls of the two first limit rods 505. A lifting assembly 7 is provided on the mounting seat 601. The lifting assembly 7 includes a lifting cylinder 701 connected to the outer wall of the top of the mounting seat 601 by bolts, a fixing frame 702 connected to the outer wall of the top end of the piston rod of the lifting cylinder 701 by bolts, and a lifting roller 703 connected to the inner wall of the fixing frame 702 by a bearing. A slide is opened on the outer wall at the center of the top of the mounting plate 501 along the length direction, and the piston rod of the lifting cylinder 701 is slidably sleeved in the slide, and two second limit rods 704 are fixed on the outer wall of the bottom of the fixing frame 702. Channels are opened on the outer wall on both sides of the slide at the top of the mounting plate 5011, and the two second limit rods 704 are respectively slidably installed in the two channels.

[0025] Working principle: The output shaft of the adjusting motor 503 rotates to drive the screw 504 to rotate, and the screw 504 drives the threaded block 602 and the mounting seat 601 to move. At the same time, the two limit blocks 603 move along the two first limit rods 505, thereby adjusting the position of the lifting cylinder 701, and then adjusting the distance between the action point and the center of the traction pin. The piston rod of the lifting cylinder 701 rises, and the lifting roller 703 rises and contacts the action arm 302 when the piston rod of the lifting cylinder 701 rises. The piston rod of the lifting cylinder 701 continues to rise and lifts the action arm 302. At the same time, the lifting cylinder 701 records the magnitude of the force acting on the action arm 302.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A static lifting test device for a cast saddle, comprising a workbench (1) and a fifth wheel assembly (2) connected to the top outer wall of the workbench (1) by bolts, characterized in that: The fifth wheel assembly (2) is provided with a connecting mechanism (3), and the connecting mechanism (3) includes a connecting plate (301) and an operating arm (302); A mounting frame (4) is fixedly provided on one side of the workbench (1), and an adjustment mechanism (5) is provided on the mounting frame (4), and the adjustment mechanism (5) comprises a mounting plate (501) connected to the outer wall of the top of the mounting frame (4) by bolts, a fixing plate (502) connected to the outer wall of one side of the mounting frame (4) by bolts, an adjustment motor (503) connected to the inner wall of the lower part of one side of the workbench (1) by bolts, and a screw (504) connected to the outer wall of one end of the output shaft of the adjustment motor (503) by a coupling; The screw rod (504) is provided with a mounting assembly (6), and the mounting assembly (6) includes a mounting seat (601) and a threaded block (602) fixed on the outer wall of the bottom of the mounting seat (601); The mounting seat (601) is provided with a lifting assembly (7), and the lifting assembly (7) includes a lifting cylinder (701) connected to the outer wall of the top of the mounting seat (601) by bolts, a fixing frame (702) connected to the outer wall of the top end of the piston rod of the lifting cylinder (701) by bolts, and a lifting roller (703) connected to the inner wall of the fixing frame (702) by a bearing.

2. The static lifting test device for a casting saddle according to claim 1, characterized in that: The connecting plate (301) is connected to the top outer wall of the fifth wheel assembly (2) by means of bolts, and the action arm (302) is connected to the top outer wall of the connecting plate (301) by means of bolts.

3. The static lifting test device for a casting saddle according to claim 1, characterized in that: One end of the screw rod (504) is connected to the outer wall of one side of the fixed plate (502) through a bearing. Two first limiting rods (505) are fixed on the outer wall of one side of the fixed plate (502), and one end of the two first limiting rods (505) is respectively fixed on the outer wall of one side of the workbench (1).

4. The static lifting test device for a casting saddle according to claim 3, characterized in that: The threaded block (602) is screwed onto the outer wall of the screw rod (504), and two limiting blocks (603) are fixedly provided on the outer wall of the bottom of the mounting seat (601), and the two limiting blocks (603) are respectively slidably mounted on the outer walls of the two first limiting rods (505).

5. The static lifting test device for a casting saddle according to claim 1, characterized in that: A slideway is provided on the outer wall at the center of the top of the mounting plate (501) along the length direction, and the piston rod of the lifting cylinder (701) is slidably sleeved in the slideway, two second limiting rods (704) are fixed on the outer wall at the bottom of the fixing frame (702), and channels are provided on the outer walls on both sides of the slideway at the top of the mounting plate (501), and the two second limiting rods (704) are slidably installed in the two channels respectively.

6. The static lifting test device for a casting saddle according to claim 1, characterized in that: The regulating motor (503) is connected to a reverse sequence switch via a wire, and the reverse sequence switch is connected to a power line.

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