Pipe compression resistance test frame for automobile transmission shaft

Abstract

The utility model relates to the technical field of automobile transmission shafts, in particular to a compression resistance test frame for a pipe for an automobile transmission shaft, which comprises a bottom frame, a storage cavity is arranged at the bottom of the bottom frame, a sliding strip is arranged at the top of the bottom frame, and a stand is mounted on the end side of the sliding strip. Sliding grooves are formed in the left end wall and the right end wall of the stand correspondingly, screws penetrate through the bottoms of the left end and the right end of the stand correspondingly, and an air cylinder is installed at the top of the stand. According to the utility model, the cylinder operates to push the pressing block to move downwards to extrude the pipe, so as to carry out a compression test on the pipe and observe whether the pipe is deformed, when the two penetrating pipes are close to each other and fit, the bottom area of the pipe is also arranged in the penetrating pipes, and when the two penetrating pipes are separated, the bottom of the pipe is hollowed out and the bottom of the pipe is supported, the pressing block extrudes the pipe; when the bottom of the pipe is not supported or hollowed out, the pressing block extrudes the pipe, the middle of the pipe is bent downwards, and the toughness and bending resistance of the pipe are detected.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile transmission shafts, in particular to a tube compression test stand for automobile transmission shafts. Background Art

[0002] The drive shaft is the shaft in the universal joint transmission device that can transmit power. It is a high-speed, less-supported rotating body, so its dynamic balance is very important. Generally, the drive shaft must undergo a dynamic balance test before leaving the factory and be adjusted on a balancing machine. The drive shaft is made of welded pipes, and the pipes will be subjected to a compression test during manufacturing.

[0003] A compression test machine is required for the compression test of the automobile drive shaft. This compression test stand is a compression test machine. When a conventional machine is used for testing, the pipe is placed on the stand and the bottom of the pipe is supported by the machine table. Then the cylinder pushes the pressure block down, and the pressure block presses down on the pipe to test the compression resistance of the pipe end wall. When the pipe is under pressure, in addition to deformation and flattening of the pipe end wall, it may also bend. It is difficult for conventional stands to test the toughness of the pipe. Utility Model Content

[0004] The utility model aims to provide a tube compression test stand for automobile transmission shafts.

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

[0006] A tube compression test stand for automobile transmission shafts comprises a base frame, a storage cavity is provided at the bottom of the base frame, a slide bar is arranged on the top of the base frame, a stand is installed on the end side of the slide bar, slide grooves are provided on the left and right end walls of the stand, screws are penetrated through the bottom of the left and right ends of the stand, a cylinder is installed on the top of the stand, a pressure block is installed on the end side of the cylinder, a fixing strip is arranged at the front end of the stand, a fixing seat is installed at the front end of the fixing strip, screws are penetrated through the front end wall of the fixing seat, a through opening is penetrated in the middle of the fixing seat, a through pipe is installed on the inner side of the through opening, and a pipe opening is provided in the middle of the through pipe.

[0007] Preferably, the base frame and the slide bar are fixedly connected, and the slide bar forms a sliding structure with the platform through a slide groove.

[0008] Preferably, two of the slide bars and two of the slide grooves are provided, and the slide bars and the slide grooves are symmetrically distributed about the center of the platform.

[0009] Preferably, the stand is fixedly connected to the cylinder, and the cylinder is transmitted to the pressing block.

[0010] Preferably, the stand and the fixing bar are fixedly connected, and the fixing bar and the fixing seat are fixedly connected.

[0011] Preferably, the fixing seat and the screw are threadedly connected, and the fixing seat forms a sliding structure through the through opening and the through tube.

[0012] The utility model has at least the following beneficial effects:

[0013] 1. Through the movement of the slide bar and the slide groove, the slide bar slides and moves along the vertical direction of the slide groove to change the distance between the base frame and the stand. The base frame is supported on the ground to support the stand. The stand position is controllable and adjustable, making the stand more convenient to use. When the automobile transmission shaft pipe is fixed at a higher position, the stand can be moved to the end side of the pipe to facilitate the adaptation of the stand and the pipe, and then the compression test is carried out. The storage cavity of the base frame can be used to store the pipe to be tested;

[0014] 2. It is fixed by a stand and a solid bar to form an integral body. When in use, the through-hole and the through-tube are movable, so that the through-tube is displaced along the axial direction of the through-hole to change the position of the through-tube. The displaced through-tube mouth is used to thread the pipe material, which is convenient for placing the pipe. After that, the cylinder is operated to push the pressing block down to squeeze the pipe for compression test on the pipe to observe whether the pipe is deformed. When the two through-tubes are close to each other, the bottom area of ​​the pipe is also placed in the through-tube. When the two through-tubes are separated, the bottom of the pipe is hollowed out. When the bottom of the pipe is supported, the pressing block squeezes the pipe to observe the compression performance of the end wall of the pipe. When the bottom of the pipe is not supported and hollowed out, the pressing block squeezes the pipe, and the middle part of the pipe bends downward to detect the toughness and bending resistance of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of a left side view of a chassis;

[0018] Figure 3 for Figure 1 3D schematic diagram of pipe penetration;

[0019] Figure 4 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0020] In the figure: 1, base frame; 2, storage chamber; 3, slide bar; 4, stand; 5, slide groove; 6, screw; 7, cylinder; 8, pressure block; 9, fixing bar; 10, fixing seat; 11, screw; 12, through-hole; 13, through-tube; 14, pipe opening. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution for a tube compression test stand for automobile transmission shafts:

[0023] Embodiment 1:

[0024] like Figure 1-4 As shown, a compression test stand for a tube for an automobile transmission shaft comprises a base frame 1, a storage chamber 2 is provided at the bottom of the base frame 1, a slide bar 3 is arranged on the top of the base frame 1, a stand 4 is installed on the end side of the slide bar 3, slide grooves 5 are provided on the left and right end walls of the stand 4, screws 6 are penetrated through the bottoms of the left and right ends of the stand 4, a cylinder 7 is installed on the top of the stand 4, a pressure block 8 is installed on the end side of the cylinder 7, a fixing strip 9 is arranged at the front end of the stand 4, a fixing seat 10 is installed at the front end of the fixing strip 9, a screw 11 is penetrated through the front end wall of the fixing seat 10, a through opening 12 is penetrated in the middle of the fixing seat 10, a through pipe 13 is installed on the inner side of the through opening 12, and a pipe opening 14 is provided in the middle of the through pipe 13.

[0025] Embodiment 2:

[0026] Based on the first embodiment, Figure 1 and Figure 2 As shown, the base frame 1 and the slide bar 3 are fixedly connected, and the slide bar 3 forms a sliding structure with the stand 4 through the slide groove 5. There are two slide bars 3 and the slide groove 5, and the slide bars 3 and the slide groove 5 are symmetrically distributed about the center of the stand 4. The stand 4 is fixedly connected with the cylinder 7, and the cylinder 7 and the pressure block 8 are transmitted. The slide bar 3 and the slide groove 5 are movable, so that the slide bar 3 slides and moves along the vertical direction of the slide groove 5 to change the spacing between the base frame 1 and the stand 4. The base frame 1 is supported on the ground to support the stand 4. The position of the stand 4 is controllable and adjustable, making the stand 4 more convenient to use. When the automobile transmission shaft pipe is fixed and the position is high, the stand 4 can be moved to the end side of the pipe to facilitate the adaptation of the stand 4 to the pipe, and then the pressure resistance test is carried out. The storage cavity 2 of the base frame 1 can be used to store the pipe to be tested;

[0027] Based on the first embodiment, Figure 3 and Figure 4As shown, the stand 4 and the fixed strip 9 are fixedly connected, and the fixed strip 9 and the fixed seat 10 are fixedly connected, the fixed seat 10 and the screw 11 are threadedly connected, and the fixed seat 10 forms a sliding structure with the through-hole 12 and the through-tube 13 through the stand 4 and the fixed strip 9 to form an integral body. When in use, the through-hole 12 and the through-tube 13 are movable, so that the through-tube 13 is displaced along the axial direction of the through-hole 12 to change the position of the through-tube 13. The pipe mouth 14 of the displaced through-tube 13 is used to pass through the pipe material, which is convenient for placing the pipe The material is then operated by the cylinder 7 to push the pressing block 8 downward to squeeze the pipe for a compression test on the pipe to observe whether the pipe is deformed. When the two penetration tubes 13 are close to each other, the bottom area of ​​the pipe is also placed in the penetration tube 13. When the two penetration tubes 13 are separated, the bottom of the pipe is hollowed out. When the bottom of the pipe is supported, the pressing block 8 squeezes the pipe to observe the compression performance of the end wall of the pipe. When the bottom of the pipe is not supported and hollowed out, the pressing block 8 squeezes the pipe and the middle part of the pipe bends downward to detect the toughness and bending resistance of the pipe.

[0028] Working principle: through the mutual movement of the slide bar 3 and the slide groove 5, the slide bar 3 is slid and displaced along the vertical direction of the slide groove 5 to change the spacing between the base frame 1 and the stand 4. The base frame 1 is supported on the ground to support the stand 4. The position of the stand 4 is controllable and adjustable, making the stand 4 more convenient to use. When the automobile transmission shaft is fixed with a pipe at a higher position, the stand 4 can be moved to the end side of the pipe to facilitate the adaptation of the stand 4 to the pipe, and then the pressure resistance test is carried out. The storage cavity 2 of the base frame 1 can be used to store the pipe to be tested, which is fixed by the stand 4 and the fixed bar 9 to form a whole. When in use, the through-opening 12 and the through-tube 13 are movable to allow the through-tube 13 to move along the through-opening 12. The displacement in the axial direction changes the position of the through-tube 13. The pipe mouth 14 of the displaced through-tube 13 is used to penetrate the pipe material to facilitate the placement of the pipe. After that, the cylinder 7 is operated to push the pressing block 8 downward to squeeze the pipe material for a compression test on the pipe material to observe whether the pipe material is deformed. When the two through-tubes 13 are close to each other, the bottom area of ​​the pipe material is also placed in the through-tube 13. When the two through-tubes 13 are separated, the bottom of the pipe material is hollowed out. When the bottom of the pipe material is supported, the pressing block 8 squeezes the pipe material to observe the compression performance of the end wall of the pipe material. When the bottom of the pipe material is not supported and is hollowed out, the pressing block 8 squeezes the pipe material, and the middle part of the pipe material bends downward to detect the toughness and bending resistance of the pipe material.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A compression test stand for automobile transmission shaft pipes, comprising a base frame (1), characterized in that: The bottom of the base frame (1) is provided with a storage chamber (2), the top of the base frame (1) is provided with a slide bar (3), the end side of the slide bar (3) is provided with a stand (4), the left and right end walls of the stand (4) are provided with slide grooves (5), the left and right end bottoms of the stand (4) are provided with screws (6), the top of the stand (4) is provided with a cylinder (7), the end side of the cylinder (7) is provided with a pressure block (8), the front end of the stand (4) is provided with a fixing bar (9), the front end of the fixing bar (9) is provided with a fixing seat (10), the front end wall of the fixing seat (10) is provided with screws (11), the middle part of the fixing seat (10) is provided with a through hole (12), the inner side of the through hole (12) is provided with a through pipe (13), and the middle part of the through pipe (13) is provided with a pipe opening (14).

2. The automobile transmission shaft tube compression test stand according to claim 1, characterized in that: The base frame (1) and the slide bar (3) are fixedly connected, and the slide bar (3) forms a sliding structure with the platform (4) through a slide groove (5).

3. The automobile transmission shaft tube compression test stand according to claim 1, characterized in that: The slide bars (3) and the slide grooves (5) are each provided with two, and the slide bars (3) and the slide grooves (5) are both symmetrically distributed about the center of the platform (4).

4. The automobile transmission shaft tube compression test stand according to claim 1, characterized in that: The stand (4) and the cylinder (7) are fixedly connected, and the cylinder (7) and the pressing block (8) are driven.

5. The automobile transmission shaft tube compression test stand according to claim 1, characterized in that: The stand (4) and the fixing strip (9) are fixedly connected, and the fixing strip (9) and the fixing seat (10) are fixedly connected.

6. The automobile transmission shaft tube compression test stand according to claim 1, characterized in that: The fixing seat (10) and the screw (11) are threadedly connected, and the fixing seat (10) forms a sliding structure through the through opening (12) and the through pipe (13).

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