Engine cylinder head strength detection device and detection method

Abstract

The present invention relates to the technical field of strength detection devices, and in particular to an engine cylinder head strength detection device and detection method. An engine cylinder head strength detection device comprises a detection platform, on which a disassembly and assembly mechanism is arranged, and the disassembly and assembly mechanism comprises a shell and a winding belt. The shell is provided with an installation chamber, and a spiral groove is provided in the installation chamber. The winding belt is installed in the spiral groove and can slide in the spiral groove. An engine cylinder head strength detection device of the present invention is provided with a disassembly and assembly mechanism on the detection head. When the pressure head is installed and disassembled, the winding belt in the spiral groove is used to tighten and fix the pressure head in a surface contact manner, thereby avoiding relative sliding between the pressure head and the winding belt as much as possible, reducing the degree of wear of the pressure head during installation and disassembly, and improving the reliability of the connection between the pressure head and the disassembly and assembly mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of strength detection devices, and in particular to an engine cylinder head strength detection device and a detection method. Background Art

[0002] Engine cylinder head strength testing is one of the important links to ensure engine reliability. When testing the engine cylinder head, it is usually necessary to select a suitable indenter according to different locations and material characteristics to ensure the accuracy and reliability of the test results.

[0003] Specifically, engine cylinder heads are usually made of aluminum alloy or cast iron, and different materials may have different requirements for hardness testing. For softer materials, a larger diameter indenter may be used, while for harder materials, a smaller diameter indenter may be used; and different locations of the cylinder head (such as the surface, inner hole, cooling channel, etc.) may have different hardness distributions. The test surface condition may affect the choice of indenter, for example, some locations may require a smaller indenter to avoid damage to the surface.

[0004] In summary, when inspecting the engine cylinder head, it is inevitable to frequently disassemble, install and replace the pressure head. The existing pressure head connection method is usually manual disassembly and replacement, which is time-consuming and labor-intensive, and the convenience of disassembly and assembly is low. During disassembly and assembly, there is always relative sliding between the installation section of the pressure head and the test equipment, which can easily cause local wear of the pressure head and affect the reliability of the connection between the pressure head and the test equipment. Summary of the invention

[0005] The present invention provides an engine cylinder head strength detection device and detection method, so as to solve the problem that in the existing detection device, when the pressure head is to be disassembled and assembled during the detection process, the convenience of disassembly and assembly is low, and the local wear of the pressure head is easily caused, thereby affecting the reliability of the connection between the pressure head and the test equipment.

[0006] The present invention provides an engine cylinder head strength detection device adopting the following technical scheme: an engine cylinder head strength detection device, used for disassembling and assembling a pressure head, comprising a detection platform, on which a detection system, an engine cylinder head and a disassembling and assembling mechanism are arranged, the engine cylinder head can move along a first direction on the detection platform, the first direction is a vertical direction, the detection system is used to feedback the strength parameter of the engine cylinder head; the disassembling and assembling mechanism and the engine cylinder head are arranged in sequence in the first direction, and the disassembling and assembling mechanism is located above the engine cylinder head; the disassembling and assembling mechanism comprises a shell, a winding belt and a compensation column; the shell is fixedly mounted on the detection platform, and the shell is It has an installation chamber, in which a spiral groove arranged along a first direction is opened; the winding belt is installed in the spiral groove and can slide in the spiral groove, and the two ends of the winding belt along the first direction are respectively called the first end and the second end, and the first end is located above the second end; the first end and the second end of the winding belt can be tightened or relaxed respectively; the compensation column is installed on the detection table through a first elastic member, the first elastic member is arranged along the first direction, the compensation column and the pressure head are both arranged along the first direction, the diameter of the compensation column is equal to the diameter of the pressure head, and in the initial state, the compensation column is located in the installation chamber and the diameter of the winding belt is larger than the diameter of the compensation column.

[0007] Furthermore, the spiral groove is set to be left-handed, and the two ends of the spiral groove along the first direction are respectively called the upper end and the lower end, and the upper end is located above the lower end; the first end of the winding belt passes through the upper end of the spiral groove and then extends out of the outer shell, and the second end of the winding belt passes through the lower end of the spiral groove and then extends out of the outer shell.

[0008] Furthermore, a first winding motor and a second winding motor are arranged on the outer shell, the first winding motor is located above the second winding motor, a first winding wheel is arranged on the output shaft of the first winding motor, the first end of the winding belt is wound on the first winding wheel, a second winding wheel is arranged on the output shaft of the second winding motor, and the second end of the winding belt is wound on the second winding wheel.

[0009] Furthermore, an oil tank and an oil pump are provided on the outer shell, the oil tank is filled with lubricating oil, an oil inlet channel is provided on the winding belt, the oil pump connects the oil tank and the oil inlet channel, the oil pump can deliver the lubricating oil in the oil tank into the oil inlet channel, the oil inlet channel is arranged along the extension direction of the spiral groove, and an oil overflow hole is provided on the oil inlet channel, and the oil overflow hole is connected to the installation chamber.

[0010] Furthermore, a recovery box and a suction pump are provided on the outer shell, an oil outlet channel is provided on the winding belt, the suction pump connects the recovery box and the oil outlet channel, the oil outlet channel is arranged along the extension direction of the spiral groove, an oil suction hole is provided on the oil outlet channel, the oil suction hole is connected with the installation chamber, and the suction pump can suck the lubricating oil into the oil outlet channel.

[0011] Further, the dimension of the winding belt in the second direction is smaller than the dimension of the spiral groove in the second direction, and the second direction is the radial direction of the compensation column.

[0012] Furthermore, a receiving groove is provided on the detection table, the receiving groove is coaxial with the installation chamber, the receiving groove and the installation chamber are arranged sequentially in the first direction and the receiving groove is located above the installation chamber, and the size of the receiving groove in the first direction is equal to the size of the compensation column in the first direction; the first elastic member is located in the receiving groove.

[0013] Further, the dimension of any circle of the spiral groove in the first direction is greater than the dimension of any circle of the winding belt in the first direction.

[0014] Furthermore, the shell includes a first shell and a second shell, the first shell is square and fixedly installed on the detection table, the installation chamber is opened in the first shell, the installation chamber is cylindrical and coaxial with the first shell, the second shell is arranged in the installation chamber, and the spiral groove is opened on the second shell.

[0015] The present invention also provides an engine cylinder head strength detection method, using the above-mentioned engine cylinder head strength detection device, comprising the following steps:

[0016] S10, inserting the upper 1 / 3 of the section to be installed of the pressure head into the installation chamber, the pressure head pushes the compensation column upward and compresses the first elastic member;

[0017] S20, tightening the first end and the second end of the winding belt at the same time, so that the winding belt can tighten the compensation column and the pressure head in the spiral groove;

[0018] S30, the first end of the winding belt is further tightened, and the second end of the winding belt is loosened, the winding belt will rotate and move upward along the spiral groove, and drive the compensation column and the pressure head tightened by the winding belt to move synchronously, so that the compensation column gradually leaves the installation chamber, and the lower 2 / 3 of the pressure head to be installed section gradually enters the installation chamber, until the pressure head to be installed section is completely in the installation chamber;

[0019] S40, placing the engine cylinder head on the testing table, driving the engine cylinder head to move upward to abut against the pressure head, testing the strength of the engine cylinder head, and recording the strength parameters fed back by the testing system.

[0020] The beneficial effects of the present invention are as follows: when installing and disassembling the pressure head, the engine cylinder head strength detection device of the present invention utilizes the winding belt in the spiral groove to tighten and fix the pressure head in a surface contact manner, thereby avoiding relative sliding between the pressure head and the winding belt as much as possible, reducing the degree of wear during installation and disassembly of the pressure head, and improving the reliability of the connection between the pressure head and the disassembly mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the overall structure of an embodiment of an engine cylinder head strength detection device of the present invention;

[0023] Figure 2 A front view of the overall structure of an embodiment of an engine cylinder head strength detection device of the present invention;

[0024] Figure 3 A cross-sectional view of a disassembly and assembly mechanism and a pressure head of an embodiment of an engine cylinder head strength detection device of the present invention installed on a detection platform;

[0025] Figure 4 A schematic diagram of a disassembly and assembly mechanism and a pressure head of an embodiment of an engine cylinder head strength detection device of the present invention;

[0026] Figure 5 for Figure 4 Sectional view along AA;

[0027] Figure 6 for Figure 5 The enlarged view of point B in the middle;

[0028] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0029] Figure 8 A front view of a first housing of an embodiment of an engine cylinder head strength detection device of the present invention;

[0030] Fig. 9 for Figure 8 Sectional view along the middle edge at DD;

[0031] Fig.10 for Figure 8 Cross-sectional view along EE.

[0032] In the figure: 100, pressure head; 200, testing table; 201, rotating seat; 202, moving table; 210, receiving groove; 300, disassembly and assembly mechanism; 310, outer shell; 311, first shell; 312, second shell; 313, spiral groove; 320, winding belt; 321, oil inlet channel; 322, oil overflow hole; 323, oil outlet channel; 324, oil suction hole; 330, compensation column; 340, first elastic member; 350, first winding motor; 360, second winding motor; 400, engine cylinder head. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention provides an embodiment of an engine cylinder head strength detection device, such as Figures 1 to 10 shown.

[0035] An engine cylinder head strength detection device is used to disassemble and assemble a pressure head 100, including a detection platform 200, on which a detection system, an engine cylinder head 400 and a disassembly and assembly mechanism 300 are arranged. The engine cylinder head 400 can move along a first direction on the detection platform 200, and the first direction is a vertical direction. The detection system is used to feedback the strength parameters of the engine cylinder head 400.

[0036] The disassembly and assembly mechanism 300 and the engine cylinder head 400 are arranged in sequence in the first direction, and the disassembly and assembly mechanism 300 is located above the engine cylinder head 400. The disassembly and assembly mechanism 300 includes a shell 310, a winding belt 320 and a compensation column 330. The shell 310 is fixedly installed on the test bench 200, and the shell 310 has an installation chamber, and a spiral groove 313 arranged along the first direction is opened in the installation chamber. The winding belt 320 is installed in the spiral groove 313 and can slide in the spiral groove 313. The two ends of the winding belt 320 along the first direction are respectively called the first end and the second end, and the first end is located above the second end. The first end and the second end of the winding belt 320 can be tightened or loosened respectively. The compensation column 330 is installed on the test bench 200 through the first elastic member 340, and the first elastic member 340 is arranged along the first direction, and the first elastic member 340 is a spring. The compensation column 330 and the pressure head 100 are both arranged along the first direction. The diameter of the compensation column 330 is equal to the diameter of the pressure head 100. In the initial state, the compensation column 330 is located in the installation chamber and the diameter of the winding belt 320 is larger than the diameter of the compensation column 330.

[0037] In this embodiment, a detection system, an engine cylinder head 400 and a disassembly and assembly mechanism 300 are arranged on a detection platform 200. When in use, the pressure head 100 is first installed. Specifically, the operator holds the pressure head 100 and inserts the upper 1 / 3 of the section to be installed of the pressure head 100 into the installation chamber. Since the compensation column 330 is located in the installation chamber in the initial state, during the process of inserting the pressure head 100 into the installation chamber, the upper end of the pressure head 100 pushes the lower end of the compensation column 330 upward and compresses the first elastic member 340.

[0038] When the upper 1 / 3 of the section to be installed of the pressure head 100 is installed, the first end and the second end of the winding belt 320 are tightened at the same time. Since the winding belt 320 is installed in the spiral groove 313, the winding belt 320 is spiral-shaped. When the first end and the second end of the winding belt 320 are tightened at the same time, the winding belt 320 in the spiral groove 313 will be tightened in the spiral groove 313 and approach one side of the pressure head 100 and the compensation column 330 until the winding belt 320 tightens the pressure head 100 and the compensation column 330 in the spiral groove 313.

[0039] Then, the first end of the take-up belt 320 is further tightened and the second end of the take-up belt 320 is loosened. At this time, the tightening amount of the first end of the take-up belt 320 will offset the loosening amount of the second end of the take-up belt 320, and the take-up belt 320 will rotate and move upward along the spiral groove 313, and drive the compensation column 330 and the pressure head 100 tightened by the take-up belt 320 to move synchronously, that is, the compensation column 330 and the pressure head 100 tightened by the take-up belt 320 will also rotate and move upward. In this process, the compensation column 330 will be pushed upward and gradually leave the installation chamber, and compress the first elastic member 340 until the compensation column 330 completely leaves the installation chamber, and the lower 2 / 3 of the section to be installed of the pressure head 100 will gradually enter the installation chamber until the section to be installed of the pressure head 100 is completely in the installation chamber, and the installation of the pressure head 100 is completed.

[0040] That is, during the installation of the pressure head 100, when installing the upper 1 / 3 of the section to be installed of the pressure head 100, the winding belt 320 will slide relative to the pressure head 100, and when installing the remaining part of the pressure head 100, the pressure head 100 is driven by the winding belt 320 to move upward synchronously. At this time, the pressure head 100 and the winding belt 320 can be regarded as a relatively static state. When installing the pressure head 100, although the winding belt 320 and the pressure head 100 produce relative sliding when installing the upper 1 / 3 of the section to be installed of the pressure head 100, for the entire installation process, the relative sliding between the pressure head 100 and the winding belt 320 is reduced as a whole, thereby reducing the degree of wear of the pressure head 100 during installation.

[0041] Thereafter, the engine cylinder head 400 is placed on the testing platform 200 , and the engine cylinder head 400 is driven to move upward to abut against the pressure head 100 , the strength of the engine cylinder head 400 is tested, and the strength parameters fed back by the testing system are recorded.

[0042] Similarly, when the pressure head 100 needs to be disassembled, the first end of the winding belt 320 is loosened and the second end is tightened. At this time, the amount of loosening of the first end of the winding belt 320 and the amount of tightening of the second end offset each other, and the entire winding belt 320 will rotate and move downward along the spiral groove 313, and drive the pressure head 100 tightened by the winding belt 320 to move synchronously, that is, the pressure head 100 tightened by the winding belt 320 will also rotate and move downward. In this process, since the pressure head 100 and the compensation column 300 are in contact with each other, the pressure head 100 and the compensation column 300 can be regarded as a whole. Therefore, the compensation column 330 will also enter the installation chamber under the action of the first elastic member 340 until the pressure head 100 is completely disassembled. At this time, the compensation column 330 will also be reset under the action of the first elastic member 340. Similarly, in the process of the pressure head 100 being driven by the winding belt 320 to move downward synchronously, the pressure head 100 and the winding belt 320 can be regarded as a relatively static state.

[0043] When installing and disassembling the pressure head 100, the present embodiment uses the winding belt 320 in the spiral groove 313 to tighten and fix the pressure head 100 in a surface contact manner, thereby avoiding relative sliding between the pressure head 100 and the winding belt 320 as much as possible, reducing the degree of wear of the pressure head 100 during installation and disassembly, and improving the reliability of the connection between the pressure head 100 and the disassembly mechanism 300.

[0044] In this embodiment, the spiral groove 313 is set to be left-handed, and the two ends of the spiral groove 313 along the first direction are respectively called the upper end and the lower end, and the upper end is located above the lower end. The first end of the winding belt 320 passes through the upper end of the spiral groove 313 and then extends out of the housing 310, and the second end of the winding belt 320 passes through the lower end of the spiral groove 313 and then extends out of the housing 310.

[0045] The upper end of the spiral groove 313 is the highest point of the spiral groove 313, and the lower end of the spiral groove 313 is the lowest point of the spiral groove 313. When the first end of the winding belt 320 is tightened and the second end is loosened when the press head 100 is installed, the spiral winding belt 320 can generate an upward thrust on the press head 100. When the first end of the winding belt 320 is loosened and the second end is tightened when the press head 100 is removed, the spiral winding belt 320 can generate a downward thrust on the press head 100, which helps installation and removal.

[0046] In this embodiment, a first winding motor 350 and a second winding motor 360 are provided on the outer shell 310, the first winding motor 350 is located above the second winding motor 360, a first winding wheel is provided on the output shaft of the first winding motor 350, the first end of the winding belt 320 is wound around the first winding wheel, a second winding wheel is provided on the output shaft of the second winding motor 360, and the second end of the winding belt 320 is wound around the second winding wheel.

[0047] In this embodiment, the shell 310 includes a first shell 311 and a second shell 312. The first shell 311 is square and fixedly installed on the detection table 200. The installation chamber is opened on the first shell 311. The installation chamber is cylindrical and coaxial with the first shell 311. The second shell 312 is arranged in the installation chamber, and the spiral groove 313 is opened on the second shell 312.

[0048] Specifically, a first through groove and a second through groove are provided on the first shell 311, and a third through groove and a fourth through groove are provided on the second shell 312. The first through groove and the third through groove are both located on the upper end side of the spiral groove 313, and the second through groove and the fourth through groove are both located on the lower end side of the spiral groove 313. The upper ends of the first through groove, the third through groove and the spiral groove 313 are connected, and the lower ends of the second through groove, the fourth through groove and the spiral groove 313 are connected.

[0049] When in use, the winding belt 320 is pulled out from the first winding wheel, and after the winding belt 320 passes through the first through slot, the third through slot and the upper end of the spiral slot 313 in sequence, the winding belt 320 is installed in the spiral slot 313, so that the winding belt 320 in the spiral slot 313 is spiral-shaped, and then the winding belt 320 passes through the second through slot, the fourth through slot and the lower end of the spiral slot 313 in sequence and is wound on the second winding wheel. When the first end and the second end of the winding belt 320 need to be tightened or loosened, the first winding motor 350 and the second winding motor 360 can be driven to start respectively, and the first winding motor 350 starts to drive the first end of the winding belt 320 to tighten or loosen, and the second winding motor 360 starts to drive the second end of the winding belt 320 to tighten or loosen.

[0050] In this embodiment, an oil tank and an oil pump are provided on the outer shell 310, and the oil tank is filled with lubricating oil. An oil inlet channel 321 is provided on the winding belt 320, and the oil pump connects the oil tank and the oil inlet channel 321. The oil pump can deliver the lubricating oil in the oil tank into the oil inlet channel 321. The oil inlet channel 321 is arranged along the extension direction of the spiral groove 313, and an oil overflow hole 322 is provided on the oil inlet channel 321, and the oil overflow hole 322 is connected to the installation chamber.

[0051] Furthermore, a recovery box and a suction pump are provided on the outer shell 310, an oil outlet channel 323 is opened on the winding belt 320, the suction pump connects the recovery box and the oil outlet channel 323, the oil outlet channel 323 is arranged along the extension direction of the spiral groove 313, an oil suction hole 324 is opened on the oil outlet channel 323, the oil suction hole 324 is connected with the installation chamber, and the suction pump can suck the lubricating oil into the oil outlet channel 323.

[0052] In this embodiment, an oil tank, an oil pump and an oil inlet channel 321 are provided. When the pressure head 100 needs to be disassembled, the lubricating oil in the oil tank is sent into the oil inlet channel 321 through the oil pump. The lubricating oil in the oil inlet channel 321 enters the installation chamber from the oil overflow hole 322 to lubricate the pressure head 100 in the installation chamber, thereby reducing the resistance when disassembling the pressure head 100.

[0053] By setting up a recovery box, a suction pump and an oil outlet channel 323, after the pressure head 100 is disassembled, when the next pressure head 100 needs to be installed, the lubricating oil is sucked into the oil outlet channel 323 through the oil suction hole 324 by the suction pump, and the lubricating oil entering the oil outlet channel 323 will be recovered in the recovery box, thereby increasing the resistance when installing the pressure head 100 and further improving the reliability of the connection between the pressure head 100 and the disassembly and assembly mechanism 300.

[0054] In this embodiment, the dimension of the winding belt 320 in the second direction is smaller than the dimension of the spiral groove 313 in the second direction, and the second direction is the radial direction of the compensation column 330. That is, the winding belt 320 will not fall out of the spiral groove 313 when tightened.

[0055] In this embodiment, a receiving groove 210 is provided on the testing platform 200, the receiving groove 210 is coaxial with the installation chamber, the receiving groove 210 and the installation chamber are arranged in sequence in the first direction and the receiving groove 210 is located above the installation chamber, and the size of the receiving groove 210 in the first direction is equal to the size of the compensation column 330 in the first direction. The first elastic member 340 is located in the receiving groove 210.

[0056] As the pressure head 100 continues to move upward, the pressure head 100 will also continue to push the compensation column 330 upward, and after the compensation column 330 is completely located in the receiving groove 210, the pressure head 100 and the compensation column 330 cannot continue to move upward, see the attached Figure 3 At this time, the installation of the pressure head 100 is completed.

[0057] In another possible embodiment, the size of any circle of spiral groove 313 in the first direction is greater than the size of any circle of winding belt 320 in the first direction. That is, when winding belt 320 is installed in spiral groove 313, winding belt 320 can move a certain distance in the spiral groove 313 along the first direction.

[0058] When installing the pressure head 100, as the first end of the winding belt 320 is continuously tightened and the second end of the winding belt 320 is continuously loosened, the pressure head 100 tightened by the winding belt 320 will also move synchronously with the winding belt 320. When the compensation column 330 is completely located in the receiving groove 210, the pressure head 100 and the compensation column 330 cannot move up further. Figure 3 At this time, the installation of the pressure head 100 is completed.

[0059] After using it for a period of time, the first end of the winding belt 320 can be tightened again and the second end of the winding belt 320 can be loosened. At this time, since the pressure head 100 cannot move up further, the winding belt 320 will rotate and move up in the spiral groove 313, and drive the pressure head 100 to rotate synchronously, thereby changing the contact surface between the winding belt 320 and the pressure head 100, reducing the stress at the fixed position between the winding belt 320 and the pressure head 100, and improving the uniformity of the pressure on the pressure head 100.

[0060] In this embodiment, a rotating seat 201 and a moving platform 202 are provided on the testing platform 200. The rotating seat 201 is installed on the testing platform 200, and is rotationally matched with the testing platform 200, and can only rotate relative to the testing platform 200. A plurality of handles are evenly distributed around a first direction on the rotating seat 201. The moving platform 202 is installed on the testing platform 200, and can only move relative to the testing platform 200 along the first direction. The moving platform 202 is spirally matched with the testing platform 200, so that the moving platform 202 can move relative to the testing platform 200 along the first direction. The engine cylinder head 400 is placed on the moving platform 202.

[0061] Specifically, an annular groove is formed at the lower end of the rotating seat 201, and an annular protrusion is provided on the testing platform 200. The annular groove and the annular protrusion are rotatably matched, so that the rotating seat 201 can only rotate relative to the testing platform 200. That is, the rotating seat 201 cannot move up and down.

[0062] A sliding groove is provided on the movable platform 202, and the sliding groove is arranged along the first direction. A sliding key is provided on the detection platform 200, and the sliding key is slidably installed in the sliding groove, so that the movable platform 202 can only move along the first direction relative to the detection platform 200, that is, the movable platform 202 cannot rotate.

[0063] When in use, after the pressure head 100 is installed, the engine cylinder head 400 is placed on the moving platform 202, and the handle is turned to drive the rotating seat 201 to rotate. The rotation of the rotating seat 201 will drive the moving platform 202 to move upward through the screw transmission, so that the engine cylinder head 400 moves toward the side close to the pressure head 100 until the engine cylinder head 400 abuts against the pressure head 100, and the engine cylinder head 400 is inspected.

[0064] In combination with the above embodiments, the specific working process is as follows:

[0065] When in use, the pressure head 100 is first installed. Specifically, the operator holds the pressure head 100 and inserts the upper 1 / 3 of the section to be installed of the pressure head 100 into the installation chamber. Since the compensation column 330 is located in the installation chamber in the initial state, during the process of inserting the pressure head 100 into the installation chamber, the upper end of the pressure head 100 pushes the lower end of the compensation column 330 upward and compresses the first elastic member 340. When the upper 1 / 3 of the pressure head 100 is installed, start the first winding motor 350 and the second winding motor 360 to tighten the first end and the second end of the winding belt 320 at the same time. Since the winding belt 320 is installed in the spiral groove 313, the winding belt 320 is spiral-shaped. When the first end and the second end of the winding belt 320 are tightened at the same time, the winding belt 320 in the spiral groove 313 will be tightened in the spiral groove 313 and approach the side of the pressure head 100 and the compensation column 330 until the winding belt 320 tightens the pressure head 100 and the compensation column 330 in the spiral groove 313.

[0066] Then, the first end of the take-up belt 320 is further tightened and the second end of the take-up belt 320 is loosened. At this time, the tightening amount of the first end of the take-up belt 320 will offset the loosening amount of the second end of the take-up belt 320, and the take-up belt 320 will rotate and move upward along the spiral groove 313, and drive the compensation column 330 and the pressure head 100 tightened by the take-up belt 320 to move synchronously, that is, the compensation column 330 and the pressure head 100 tightened by the take-up belt 320 will also rotate and move upward. In this process, the compensation column 330 will be pushed upward and gradually leave the installation chamber, and compress the first elastic member 340 until the compensation column 330 completely leaves the installation chamber, and the lower 2 / 3 of the section to be installed of the pressure head 100 will gradually enter the installation chamber until the section to be installed of the pressure head 100 is completely in the installation chamber, and the installation of the pressure head 100 is completed.

[0067] Thereafter, the engine cylinder head 400 is placed on the testing platform 200 , and the engine cylinder head 400 is driven to move upward to abut against the pressure head 100 , the strength of the engine cylinder head 400 is tested, and the strength parameters fed back by the testing system are recorded.

[0068] When it is necessary to disassemble the pressure head 100, the first winding motor 350 and the second winding motor 360 are started to loosen the first end of the winding belt 320 and tighten the second end. At this time, the amount of relaxation at the first end of the winding belt 320 and the amount of tightening at the second end offset each other, and the entire winding belt 320 will rotate and move downward along the spiral groove 313, and drive the pressure head 100 tightened by the winding belt 320 to move synchronously, that is, the pressure head 100 tightened by the winding belt 320 will also rotate and move downward. In this process, since the pressure head 100 is abutted against the compensation column 300, the pressure head 100 and the compensation column 300 can be regarded as a whole at this time. Therefore, the compensation column 330 will also enter the installation chamber under the action of the first elastic member 340 until the pressure head 100 is completely disassembled. At this time, the compensation column 330 will also be reset under the action of the first elastic member 340. Similarly, when the pressure head 100 is driven by the winding belt 320 to move downward synchronously, the pressure head 100 and the winding belt 320 can be regarded as being in a relatively static state. At the same time, the lubricating oil in the oil tank is sent into the oil inlet channel 321 through the oil pump, and the lubricating oil in the oil inlet channel 321 enters the installation chamber from the oil overflow hole 322 to lubricate the pressure head 100 in the installation chamber, thereby reducing the resistance when the pressure head 100 is removed.

[0069] After the pressure head 100 is disassembled, when the next pressure head 100 needs to be installed, the lubricating oil is sucked into the oil outlet channel 323 through the oil suction hole 324 by a suction pump, and the lubricating oil entering the oil outlet channel 323 will be recovered in the recovery box, thereby increasing the resistance when installing the pressure head 100 and further improving the reliability of the connection between the pressure head 100 and the disassembly and assembly mechanism 300.

[0070] The present invention also provides an engine cylinder head strength detection method, using the above-mentioned engine cylinder head strength detection device, comprising the following steps:

[0071] S10, inserting the upper 1 / 3 of the section to be installed of the pressing head 100 into the installation chamber, the pressing head 100 pushes the compensating column 330 upward and compresses the first elastic member 340;

[0072] S20, tightening the first end and the second end of the winding belt 320 at the same time, so that the winding belt 320 can tighten the compensation column 330 and the pressure head 100 in the spiral groove 313;

[0073] S30, the first end of the winding belt 320 is further tightened, and the second end of the winding belt 320 is loosened, the winding belt 320 will rotate and move upward along the spiral groove 313, and drive the compensation column 330 and the pressure head 100 tightened by the winding belt 320 to move synchronously, so that the compensation column 330 gradually leaves the installation chamber, and the lower 2 / 3 of the section to be installed of the pressure head 100 gradually enters the installation chamber, until the section to be installed of the pressure head 100 is completely in the installation chamber, and the installation of the pressure head 100 is completed;

[0074] S40, placing the engine cylinder head 400 on the testing platform 200, and driving the engine cylinder head 400 to move upward to abut against the pressure head 100, testing the strength of the engine cylinder head 400, and recording the strength parameters fed back by the testing system.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine cylinder head strength detection device, used for disassembling and assembling a pressure head, characterized in that: It includes a testing platform, on which a testing system, an engine cylinder head and a disassembly and assembly mechanism are arranged. The engine cylinder head can move along a first direction on the testing platform, the first direction is a vertical direction, and the testing system is used to feed back the strength parameters of the engine cylinder head; the disassembly and assembly mechanism and the engine cylinder head are arranged in sequence in the first direction, and the disassembly and assembly mechanism is located above the engine cylinder head; the disassembly and assembly mechanism includes a shell, a winding belt and a compensation column; the shell is fixedly installed on the testing platform, and a mounting chamber is provided on the shell, and a spiral groove arranged along the first direction is opened in the mounting chamber; the winding belt is installed in the spiral groove and can slide in the spiral groove, and the two ends of the winding belt along the first direction are respectively called the first end and the second end, and the first end is located above the second end; the first end and the second end of the winding belt can be tightened or relaxed respectively; the compensation column is installed on the testing platform through a first elastic member, the first elastic member is arranged along the first direction, the compensation column and the pressure head are both arranged along the first direction, the diameter of the compensation column is equal to the diameter of the pressure head, and in the initial state, the compensation column is located in the mounting chamber and the diameter of the winding belt is larger than the diameter of the compensation column.

2. The engine cylinder head strength detection device according to claim 1, characterized in that: The spiral groove is set to be left-handed, and the two ends of the spiral groove along the first direction are respectively called the upper end and the lower end, and the upper end is located above the lower end; the first end of the winding belt passes through the upper end of the spiral groove and then extends out of the outer shell, and the second end of the winding belt passes through the lower end of the spiral groove and then extends out of the outer shell.

3. The engine cylinder head strength detection device according to claim 2, characterized in that: A first winding motor and a second winding motor are arranged on the outer shell, the first winding motor is located above the second winding motor, a first winding wheel is arranged on the output shaft of the first winding motor, the first end of the winding belt is wound on the first winding wheel, a second winding wheel is arranged on the output shaft of the second winding motor, and the second end of the winding belt is wound on the second winding wheel.

4. The engine cylinder head strength detection device according to claim 1, characterized in that: An oil tank and an oil pump are provided on the outer shell. The oil tank is filled with lubricating oil. An oil inlet channel is provided on the winding belt. The oil pump connects the oil tank and the oil inlet channel. The oil pump can deliver the lubricating oil in the oil tank into the oil inlet channel. The oil inlet channel is arranged along the extension direction of the spiral groove, and an oil overflow hole is provided on the oil inlet channel, which is connected to the installation chamber.

5. The engine cylinder head strength detection device according to claim 4, characterized in that: A recovery box and a suction pump are provided on the outer shell, an oil outlet channel is provided on the winding belt, the suction pump is connected to the recovery box and the oil outlet channel, the oil outlet channel is arranged along the extension direction of the spiral groove, an oil suction hole is provided on the oil outlet channel, the oil suction hole is connected with the installation chamber, and the suction pump can suck the lubricating oil into the oil outlet channel.

6. The engine cylinder head strength detection device according to claim 1, characterized in that: The dimension of the winding belt in the second direction is smaller than the dimension of the spiral groove in the second direction, and the second direction is the radial direction of the compensation column.

7. The engine cylinder head strength detection device according to claim 1, characterized in that: A receiving groove is provided on the testing table, which is coaxial with the installation chamber. The receiving groove and the installation chamber are arranged sequentially in the first direction and the receiving groove is located above the installation chamber. The size of the receiving groove in the first direction is equal to the size of the compensation column in the first direction; the first elastic member is located in the receiving groove.

8. The engine cylinder head strength detection device according to claim 7, characterized in that: The dimension of any circle of the spiral groove in the first direction is greater than the dimension of any circle of the winding belt in the first direction.

9. The engine cylinder head strength detection device according to claim 1, characterized in that: The shell includes a first shell and a second shell. The first shell is square and fixedly installed on the detection table. The installation chamber is opened in the first shell. The installation chamber is cylindrical and coaxial with the first shell. The second shell is arranged in the installation chamber, and the spiral groove is opened on the second shell.

10. A method for testing the strength of an engine cylinder head, using the engine cylinder head strength testing device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S10, inserting the upper 1 / 3 of the section to be installed of the pressure head into the installation chamber, the pressure head pushes the compensation column upward and compresses the first elastic member; S20, tightening the first end and the second end of the winding belt at the same time, so that the winding belt can tighten the compensation column and the pressure head in the spiral groove; S30, the first end of the winding belt is further tightened, and the second end of the winding belt is loosened, the winding belt will rotate and move upward along the spiral groove, and drive the compensation column and the pressure head tightened by the winding belt to move synchronously, so that the compensation column gradually leaves the installation chamber, and the lower 2 / 3 of the pressure head to be installed section gradually enters the installation chamber, until the pressure head to be installed section is completely in the installation chamber; S40, placing the engine cylinder head on the testing table, driving the engine cylinder head to move upward to abut against the pressure head, testing the strength of the engine cylinder head, and recording the strength parameters fed back by the testing system.

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