Inspection mandrel for flexible gear ring measurement

Abstract

The invention provides an inspection mandrel for flexible gear ring measurement, which comprises a bottom plate, a bottom plate oil pushing path and a bottom plate oil suction path are respectively arranged in the bottom plate, and a one-way oil pushing valve and a one-way oil suction valve are respectively arranged on the bottom plate oil pushing path and the bottom plate oil suction path; a piston cylinder is further included, the piston cylinder comprises a pushing piston mounting section and an oil way forming section, a pushing piston mounting cavity and an annular oil storage cavity are formed in the pushing piston mounting section, a pushing piston is movably mounted in the pushing piston mounting cavity, and a pushing cavity is formed between the pushing piston and the pushing piston mounting cavity; the oil way opening section is provided with a piston cylinder oil suction way and a piston cylinder oil pushing way, the piston cylinder oil suction way, the annular oil storage cavity and the bottom plate oil suction way are communicated, one end of the piston cylinder oil pushing way is divided into two ways, one way is communicated with the pushing cavity, and the other way of the piston cylinder oil pushing way is provided with a pressure release valve. The other path of the piston cylinder oil pushing path is unidirectionally communicated with the annular oil storage cavity, and the piston cylinder oil pushing path is communicated with the bottom plate oil pushing path. The flexible gear ring part is tensioned through small force, and operation is rapid, easy and convenient.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vehicles, and relates to a test mandrel, in particular to a test mandrel for measuring a flexible gear ring. BACKGROUND

[0002] The flexible planetary gear train for steering of a CAT excavator mainly comprises flexible gear rings, sun wheel shafts, planetary gears and other components. The flexible planetary gear train is designed through a semicircular arc profile of the flexible gear ring and assembled through elastic deformation, so that high-precision output is ensured and uneven load in the planetary gear box can be overcome. The outer diameter of the flexible gear ring and the profile degree of the three semicircular arcs all need to be measured under the condition that the inner tooth division circle degree is 0.05 (measurement in a non-natural state). The existing test mandrel has the problems of difficult installation, and the inner tooth division circle degree is within 0.05 after expansion, which is determined by experience or the degree of the outer circle is measured by a ruler after each expansion to determine whether the division circle degree is within 0.05, and the problems of incomplete expansion and inconvenience in operation. SUMMARY

[0003] In view of the problems in the prior art, the present application provides a test mandrel for measuring a flexible gear ring to solve the technical problems that the detection efficiency and detection accuracy in the prior art need to be further improved.

[0004] To solve the above technical problems, the present application adopts the following technical solutions: A test mandrel for measuring a flexible gear ring comprises a bottom plate, one end of the bottom plate is fixedly connected to one side of the lower end of a base, the lower surface of the bottom plate is flush with the lower surface of the base, and the upper surface of the other end of the bottom plate is sequentially provided from left to right with a piston cylinder mounting cavity, a connecting rod cooperation mounting plate cavity and an oil pressing piston mounting cavity, the connecting rod cooperation mounting plate cavity is located between the piston cylinder mounting cavity and the oil pressing piston mounting cavity, and the bottom plate is further provided with a bottom plate oil pushing channel and a bottom plate oil suction channel.

[0005] One end of the connecting rod cooperation mounting plate cavity is rotatably connected to one end of a connecting rod, the other end of the connecting rod is rotatably connected to one end of a handle, one end of an oil pressing piston mounted in the oil pressing piston mounting cavity, the other end of the oil pressing piston is also rotatably connected to one end of the handle, the other end of the handle moves the oil pressing piston up and down, and the one end of the oil pressing piston and the bottom wall of the oil pressing piston mounting cavity form an oil pressing cavity. One end of the bottom plate oil pushing channel is provided with a one-way oil pushing valve close to the oil pressing cavity, and one end of the bottom plate oil suction channel is provided with a one-way oil suction valve close to the oil pressing cavity.

[0006] The piston cylinder further comprises a push piston mounting section and an oil passage opening section connected in sequence, the push piston mounting section is fixedly connected with the middle part of one side of the base, and the oil passage opening section is fixedly installed in the piston cylinder mounting cavity.

[0007] The oil passage opening section is provided with a piston cylinder oil suction passage and a piston cylinder oil pushing passage, one end of the piston cylinder oil suction passage is communicated with the annular oil storage cavity, the other end of the piston cylinder oil suction passage is communicated with the other end of the bottom plate oil suction passage, one end of the piston cylinder oil pushing passage is divided into two passages, one of which is communicated with the push type cavity, the other of which is provided with a pressure relief valve, so that the other of the piston cylinder oil pushing passage is unidirectionally communicated with the annular oil storage cavity, and the other end of the piston cylinder oil pushing passage is communicated with the other end of the bottom plate oil pushing passage.

[0008] The moving cross beam is movably installed in the base, and comprises a left horizontal section, an inclined section and a right horizontal section connected in sequence.

[0009] The two rollers are coaxially movably sleeved on the two roller shafts, and are arranged in correspondence with each other.

[0010] The application also has the following technical features: The push piston mounting section is further provided with an oil injection hole communicated with the annular oil storage cavity, and the oil injection hole is provided with a plug.

[0011] The inspection mandrel body comprises a circular table cavity body with an open lower end, the upper end outer diameter of the circular table cavity body is smaller than the lower end outer diameter, the upper end surface of the upper cavity wall of the circular table cavity body is provided with a first cylindrical block, the lower end surface of the upper cavity wall of the circular table cavity body is provided with a second cylindrical block, the outer diameter of the second cylindrical block is larger than the outer diameter of the first cylindrical block, and the lower end of the second cylindrical block is fitted and installed in the base.

[0012] The first cylindrical block is coaxially vertically provided with a first pull rod hole in the center, the upper cavity wall of the circular table cavity body is provided with a second pull rod hole in the center, the inner diameters of the first pull rod hole and the second pull rod hole are equal, the center of the second cylindrical block is sequentially coaxially vertically provided with a pull rod connecting section mounting hole and a lower pull structure clamping section mounting hole, the pull rod connecting section mounting hole and the lower pull structure clamping section mounting hole are used for cooperatively mounting a pull rod connecting sleeve, the inner diameter of the first pull rod hole is smaller than the inner diameter of the pull rod connecting section mounting hole, and the inner diameter of the pull rod connecting section mounting hole is smaller than the inner diameter of the lower pull structure clamping section mounting hole.

[0013] The lower end outer wall of the cylindrical cavity body is integrally provided with a boss for bearing the flexible gear ring part, the lower end surface of the boss is flush with the lower end surface of the side wall of the circular table cavity body, and the outer side wall of the cylindrical cavity body is further movably sleeved with a bulge sleeve between the cylindrical cavity body and the flexible gear ring part.

[0014] The upper cavity wall of the circular table cavity body is detachably provided with a circular pressing plate, the height of the circular pressing plate is greater than the height of the second cylindrical block, the circular pressing plate is provided with an opening with one end closed and one end open, the first cylindrical block is located in the opening, and the inspection mandrel body is further provided with a scale, and the scale is also located in the opening.

[0015] The base is coaxially provided with a second cylindrical block mounting cavity and a lower pull structure movable cavity which are sequentially connected in sequence, the lower end of the second cylindrical block is cooperatively mounted in the second cylindrical block mounting cavity, the inner diameter of the second cylindrical block mounting cavity is greater than the inner diameter of the lower pull structure movable cavity, the base is further transversely provided with a left moving guide rail with one end closed, the other end of the left moving guide rail is in communication with the lower pull structure movable cavity, the base is further provided with a right moving guide rail with both ends open, the base is further provided with a piston cylinder mounting hole, one end of the push piston mounting section is mounted in the piston cylinder mounting hole, one end of the right moving guide rail is in communication with the lower pull structure movable cavity, the other end of the right moving guide rail is in communication with the piston cylinder mounting hole, the inner diameter of the piston cylinder mounting hole is greater than the inner diameter of the right moving guide rail, the left moving guide rail and the right moving guide rail are disposed in a staggered manner, and the left moving guide rail is located above the right moving guide rail.

[0016] The pull rod adapter sleeve comprises a pull rod connecting section and a lower pull structure clamping section which are sequentially connected, the height of the lower pull structure clamping section is smaller than the height of the lower pull structure clamping section mounting hole, the pull rod connecting section is cooperatively movably mounted in the pull rod connecting section mounting hole, and the lower pull structure clamping section is cooperatively movably mounted in the lower pull structure clamping section mounting hole.

[0017] The center of the pull rod connecting section is vertically coaxially provided with a third pull rod hole, the center of the lower pull structure clamping section is vertically coaxially provided with a lower pull structure clamping hole, the lower pull structure clamping hole and the third pull rod hole are connected in communication, the inner diameter of the lower pull structure clamping hole is larger than the inner diameter of the third pull rod hole, the inner diameter of the third pull rod hole is equal to the inner diameter of the second pull rod hole, and the lower pull structure clamping section is also coaxially provided with an annular clamping cavity in communication with the lower pull structure clamping hole, and the annular clamping cavity is used for fixing and clamping the lower pull structure.

[0018] The first pull rod hole, the second pull rod hole, the third pull rod hole and the lower pull structure clamping hole are sequentially connected in communication, the first pull rod hole, the second pull rod hole and the third pull rod hole are provided with a pull rod, the lower end of the pull rod is fixedly installed in the third pull rod hole, the upper end of the pull rod is provided with a pull rod handle, the outer diameter of the pull rod handle is larger than the inner diameter of the gap, and the pull rod handle is located above the circular pressing plate.

[0019] The lower pull structure comprises a trapezoidal circular arc plate, the trapezoidal circular arc plate is fixedly clamped in the annular clamping cavity, the non-circular arc end lower end surface of the trapezoidal circular arc plate is fixedly connected with the upper end surface of the roller mounting plate, the non-circular arc end surface of the trapezoidal circular arc plate is parallel to the side surface of the roller mounting plate, the lower end of the roller mounting plate is provided with two mounting holes, the two ends of the roller shaft are fixedly installed in the two mounting holes on the two roller mounting plates respectively, and the lower end of the roller mounting plate can move up and down in the lower pull structure movable cavity.

[0020] The left horizontal section is movably installed in the left moving guide rail, the right horizontal section is movably installed in the right moving guide rail, and the inclined section is located in the lower pull structure movable cavity.

[0021] The pushing piston mounting section is installed at one end of the piston cylinder mounting hole through bolts.

[0022] Compared with the prior art, the application has the following beneficial technical effects: The inspection spindle for measuring the flexible gear ring can tighten the flexible gear ring part with smaller force, and the operation is quick and simple. Meanwhile, the roundness of the flexible gear ring part can be accurately expanded to the detection requirement through the scale. The detection efficiency and detection accuracy of subsequent processing can be improved, and the risks and quality hidden dangers in detection can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a cross-sectional view of the overall structure of the inspection spindle.

[0024] Figure 2 It is an enlarged view of position A of the inspection spindle.

[0025] Figure 3 It is an enlarged view of position B of the inspection spindle.

[0026] Figure 4 Fig. 2 is a perspective view of the inspection mandrel overall structure.

[0027] Figure 5 Fig. 3 is a sectional view of the inspection mandrel partial structure.

[0028] The meanings of the various reference numerals in the drawings are as follows: 1 - base plate, 2 - base, 3 - connecting rod, 4 - handle, 5 - oil pressing piston, 6 - oil pressing cavity, 7 - one-way oil pushing valve, 8 - one-way oil sucking valve, 9 - piston cylinder, 10 - pushing piston, 11 - pushing cavity, 12 - pressure relief valve, 13 - moving cross beam, 14 - roller, 15 - roller shaft, 16 - pull-down structure, 17 - pull rod adapter sleeve, 18 - inspection mandrel body, 19 - pull rod, 20 - flexible gear ring part, 21 - expansion sleeve, 22 - circular pressing plate, 23 - gap, 24 - scale, 25 - pull rod handle, 26 - plug.

[0029] 101 - piston cylinder installation cavity, 102 - connecting rod matching installation plate cavity, 103 - oil pressing piston installation cavity, 104 - base plate oil pushing path, 105 - base plate oil sucking path.

[0030] 201 - second cylindrical block installation cavity, 202 - pull-down structure movable cavity, 203 - left moving guide rail, 204 - right moving guide rail, 205 - piston cylinder installation hole.

[0031] 901 - pushing piston installation section, 902 - oil path opening section.

[0032] 1301 - left horizontal section, 1302 - inclined section, 1303 - right horizontal section.

[0033] 1601 - trapezoidal circular arc plate, 1602 - roller installation plate.

[0034] 1701 - pull rod connecting section, 1702 - pull-down structure clamping section, 1703 - third pull rod hole, 1704 - pull-down structure clamping hole, 1705 - annular clamping cavity.

[0035] 1801 - circular table cavity body, 1802 - first cylindrical block, 1803 - second cylindrical block, 1804 - first pull rod hole, 1805 - second pull rod hole, 1806 - boss.

[0036] 90101 - pushing piston installation cavity, 90102 - annular oil storage cavity, 90103 - oil injection hole, 90201 - piston cylinder oil sucking path, 90202 - piston cylinder oil pushing path.

[0037] 180301 - pull rod connecting section installation hole, 180302 - pull-down structure clamping section installation hole.

[0038] The specific content of the present application is further explained in detail in the following combined with embodiments. DETAILED DESCRIPTION

[0039] It should be noted that all the devices and parts in the present application, if not specially stated, all adopt the devices and parts known in the prior art.

[0040] In accordance with the above technical solution, the specific embodiments of the present application are given below. It should be noted that the present application is not limited to the following specific embodiments, and any equivalent transformation based on the technical solution of the present application falls within the protection scope of the present application.

[0041] Embodiment: The present embodiment proposes a test spindle for measuring flexible gear ring, as shown in Figure 1 and Figure 4 , which comprises a bottom plate 1, one end of the bottom plate 1 is fixedly connected with the lower end of one side of a base 2, the lower surface of the bottom plate 1 is flush with the lower surface of the base 2, and the upper surface of the other end of the bottom plate 1 is sequentially provided from left to right with a piston cylinder mounting cavity 101, a connecting rod matching mounting plate cavity 102 and an oil pressing piston mounting cavity 103, the connecting rod matching mounting plate cavity 102 is located between the piston cylinder mounting cavity 101 and the oil pressing piston mounting cavity 103, and the bottom plate 1 is further provided with a bottom plate oil pushing path 104 and a bottom plate oil suction path 105.

[0042] As shown in Figure 1 and Figure 3 , the connecting rod matching mounting plate cavity 102 is rotatably connected with one end of a connecting rod 3, the other end of the connecting rod 3 is rotatably connected with one end of a handle 4, one end of an oil pressing piston 5 is movably installed in the oil pressing piston mounting cavity 103, the other end of the oil pressing piston 5 is also rotatably connected with one end of the handle 4, the other end of the handle 4 moves the oil pressing piston 5 up and down, one end of the oil pressing piston 5 and the bottom wall of the oil pressing piston mounting cavity 103 form an oil pressing cavity 6, one end of the bottom plate oil pushing path 104 close to the oil pressing cavity 6 is provided with a one-way oil pushing valve 7, and one end of the bottom plate oil suction path 105 close to the oil pressing cavity 6 is provided with a one-way oil suction valve 8.

[0043] As shown in Figure 1 and Figure 2As shown, the piston cylinder 9 comprises a push piston mounting section 901 and an oil passage opening section 902 connected in sequence, the push piston mounting section 901 is fixedly connected with the middle part of one side of the base 2, and the oil passage opening section 902 is fixedly mounted in the piston cylinder mounting cavity 101. The push piston mounting section 901 is independently provided with a push piston mounting cavity 90101 and an annular oil storage cavity 90102, respectively. The push piston mounting cavity 90101 is horizontally provided, and the annular oil storage cavity 90102 is circumferentially provided around the push piston mounting cavity 90101. The push piston mounting cavity 90101 and the annular oil storage cavity 90102 are not communicated. One end of the push piston 10 is movably mounted in the push piston mounting cavity 90101. The length of the push piston 10 is greater than the length of the push piston mounting cavity 90101. The push piston 10 is provided with a push type cavity 11 between one end of the push piston 10 and the bottom wall of the push piston mounting cavity 90101. The annular oil storage cavity 90102 is located on the side close to the push type cavity 11.

[0044] As shown in Figure 1 and Figure 2 , the oil passage opening section 902 is provided with a piston cylinder oil suction passage 90201 and a piston cylinder oil pushing passage 90202, respectively. One end of the piston cylinder oil suction passage 90201 is communicated with the annular oil storage cavity 90102, and the other end of the piston cylinder oil suction passage 90201 is communicated with the other end of the bottom plate oil suction passage 105. One end of the piston cylinder oil pushing passage 90202 is divided into two paths, one of which is communicated with the push type cavity 11. The other path of the piston cylinder oil pushing passage 90202 is provided with a pressure relief valve 12, so that the other path of the piston cylinder oil pushing passage 90202 is unidirectionally communicated with the annular oil storage cavity 90102. The other end of the piston cylinder oil pushing passage 90202 is communicated with the other end of the bottom plate oil pushing passage 104.

[0045] As shown in Figure 1 , the moving cross beam 13 is movably mounted in the base 2. The moving cross beam 13 comprises a left horizontal section 1301, an inclined section 1302 and a right horizontal section 1303 connected in sequence. The left horizontal section 1301 and the right horizontal section 1303 are arranged in parallel by the inclined section 1302. The left horizontal section 1301 is located above the right horizontal section 1303. The other end of the push piston 10 is threadedly connected with the right horizontal section 1303.

[0046] As shown in Figure 1As shown, two rollers 14 are coaxially movably sleeved on two roller shafts 15, and are arranged in correspondence with each other in an up-down manner. The side surface of the roller 14 is in contact with the side surface of the moving cross beam 13, and the moving cross beam 13 is located between the two rollers 14. The two roller shafts 15 are connected with two downward pulling structures 16, and the two downward pulling structures 16 are symmetrically arranged. The two downward pulling structures 16 are fixedly connected with a pull rod adapter sleeve 17, and the pull rod adapter sleeve 17 is movably installed in the inside of the inspection mandrel body 18. The pull rod adapter sleeve 17 is fixedly connected with the lower end of a pull rod 19.

[0047] As a preferred scheme of the embodiment, as shown in Figure 1 and Figure 2 As shown, an oil injection hole 90103 is arranged on the push piston mounting section 901, and the oil injection hole 90103 is in communication with the annular oil storage cavity 90102. A plug 26 is arranged in the oil injection hole 90103.

[0048] As a preferred scheme of the embodiment, as shown in Figure 1 As shown, the inspection mandrel body 18 comprises a circular truncated cone cavity body 1801 with an open lower end. The upper end of the circular truncated cone cavity body 1801 has a smaller outer diameter than the lower end. A first cylindrical block 1802 is arranged at the center of the upper end surface of the upper cavity wall of the circular truncated cone cavity body 1801. A second cylindrical block 1803 is arranged at the center of the lower end surface of the upper cavity wall of the circular truncated cone cavity body 1801. The outer diameter of the second cylindrical block 1803 is larger than that of the first cylindrical block 1802. The lower end of the second cylindrical block 1803 is fitted and installed in the base 2.

[0049] As a preferred scheme of the embodiment, as shown in Figure 1 As shown, a first pull rod hole 1804 is vertically and coaxially arranged at the center of the first cylindrical block 1802. A second pull rod hole 1805 is arranged at the center of the upper cavity wall of the circular truncated cone cavity body 1801. The inner diameters of the first pull rod hole 1804 and the second pull rod hole 1805 are equal. A pull rod connecting sleeve 17 mounting hole 180301 and a downward pulling structure clamping sleeve mounting hole 180302 are vertically and coaxially arranged at the center of the second cylindrical block 1803 in sequence. The pull rod connecting sleeve 17 mounting hole 180301 and the downward pulling structure clamping sleeve mounting hole 180302 are used for fitting and installing the pull rod connecting sleeve 17. The inner diameter of the first pull rod hole 1804 is smaller than that of the pull rod connecting sleeve 17 mounting hole 180301. The inner diameter of the pull rod connecting sleeve 17 mounting hole 180301 is smaller than that of the downward pulling structure clamping sleeve mounting hole 180302.

[0050] As a preferred scheme of the embodiment, as shown in Figure 1As shown in the figure, the lower end of the outer wall of the cylindrical cavity body 1801 is integrally provided with a boss 1806 for bearing the flexible gear ring part 20, the lower end face of the boss 1806 is flush with the lower end face of the side wall of the cylindrical cavity body 1801, and the outer wall of the cylindrical cavity body 1801 is further movably sleeved with a bulge sleeve 21, which is located between the cylindrical cavity body 1801 and the flexible gear ring part 20.

[0051] As a preferred scheme of the embodiment, as shown in the figure, Figure 1 and Figure 4 As shown in the figure, the upper cavity wall of the circular cavity body 1801 is detachably provided with a circular pressing plate 22, the height of the circular pressing plate 22 is greater than the height of the second cylindrical block 1803, the circular pressing plate 22 is provided with an opening 23 with one end closed and one end open, the first cylindrical block 1802 is located in the opening 23, and the inspection mandrel body 18 is further provided with a scale 24, which is also located in the opening 23.

[0052] As a preferred scheme of the embodiment, as shown in the figure, Figure 1 As shown in the figure, the base 2 is coaxially provided with a second cylindrical block mounting cavity 201 and a lower pulling structure movable cavity 202 connected in sequence from top to bottom, the lower end of the second cylindrical block 1803 is fitted and mounted in the second cylindrical block mounting cavity 201, the inner diameter of the second cylindrical block mounting cavity 201 is greater than the inner diameter of the lower pulling structure movable cavity 202, the base 2 is further transversely provided with a left moving guide rail 203 with one end closed, the other end of the left moving guide rail 203 communicates with the lower pulling structure movable cavity 202, the base 2 is further provided with a right moving guide rail 204 with both ends open, the base 2 is further provided with a piston cylinder mounting hole 205, one end of the pushing piston mounting section 901 is mounted in the piston cylinder mounting hole 205, one end of the right moving guide rail 204 communicates with the lower pulling structure movable cavity 202, the other end of the right moving guide rail 204 communicates with the piston cylinder mounting hole 205, the inner diameter of the piston cylinder mounting hole 205 is greater than the inner diameter of the right moving guide rail 204, the left moving guide rail 203 and the right moving guide rail 204 are disposed in a staggered manner, and the left moving guide rail 203 is located above the right moving guide rail 204.

[0053] As a preferred scheme of the embodiment, as shown in the figure, Figure 1 As shown in the figure, the pull rod adapter sleeve 17 includes a pull rod connecting section 1701 and a lower pulling structure clamping section 1702 connected in sequence, the height of the lower pulling structure clamping section 1702 is less than the height of the lower pulling structure clamping section mounting hole 180302, the pull rod connecting section 1701 is movably fitted and mounted in the pull rod connecting section mounting hole 180301, and the lower pulling structure clamping section 1702 is movably fitted and mounted in the lower pulling structure clamping section mounting hole 180302.

[0054] As a preferred scheme of the embodiment, as shown in the figure, Figure 1As shown, the center of the pull rod connecting section 1701 is vertically coaxially provided with a third pull rod hole 1703, and the center of the lower pull structure clamping section 1702 is vertically coaxially provided with a lower pull structure clamping hole 1704, which is in communication with the third pull rod hole 1703, and the inner diameter of the lower pull structure clamping hole 1704 is larger than that of the third pull rod hole 1703, and the inner diameter of the third pull rod hole 1703 is equal to that of the second pull rod hole 1805. The lower pull structure clamping section 1702 is also coaxially provided with an annular clamping cavity 1705, which is in communication with the lower pull structure clamping hole 1704, and the annular clamping cavity 1705 is used for fixing and clamping the lower pull structure 16.

[0055] As a preferred form of the present embodiment, as shown in Figure 1 As shown, the first pull rod hole 1804, the second pull rod hole 1805, the third pull rod hole 1703 and the lower pull structure clamping hole 1704 are in communication in turn, and the pull rod 19 is installed in the first pull rod hole 1804, the second pull rod hole 1805 and the third pull rod hole 1703. The lower end of the pull rod 19 is fixedly installed in the third pull rod hole 1703, and the upper end of the pull rod 19 is provided with a pull rod handle 25, the outer diameter of the pull rod handle 25 is greater than the inner diameter of the gap 23, and the pull rod handle 25 is located above the circular pressing plate 22.

[0056] As a preferred form of the present embodiment, as shown in Figure 1 As shown, the lower pull structure 16 includes a trapezoidal circular arc plate 1601, which is fixedly clamped in the annular clamping cavity 1705, the non-circular arc end surface of the trapezoidal circular arc plate 1601 is fixedly connected with the upper end surface of the roller mounting plate 1602, and the non-circular arc end surface of the trapezoidal circular arc plate 1601 is parallel to the side surface of the roller mounting plate 1602. Two mounting holes are provided on the lower end of the roller mounting plate 1602, and the two ends of the roller shaft 15 are fixedly installed in the corresponding two mounting holes of the two roller mounting plates 1602, respectively, and the lower end of the roller mounting plate 1602 can move up and down in the lower pull structure movable cavity 202.

[0057] As a preferred form of the present embodiment, as shown in Figure 1 As shown, the left horizontal section 1301 is movably installed in the left moving guide rail 203, the right horizontal section 1303 is movably installed in the right moving guide rail 204, and the inclined section 1302 is located in the lower pull structure movable cavity 202.

[0058] As a preferred form of the present embodiment, the push piston mounting section 901 is installed at one end of the push piston mounting section 901 in the piston cylinder mounting hole 205 through bolts.

[0059] In this embodiment, the circular pressing plate 22 is provided with an opening 23, and the flexible gear ring part 20 can be mounted and dismounted without removing the pull rod 19, only by pulling out the circular pressing plate 22, so that the flexible gear ring part 20 can be conveniently mounted and dismounted.

[0060] In this embodiment, the working process of the inspection mandrel for measuring the flexible gear ring is as follows: After the flexible gear ring part is placed on the boss 1806, the handle 4 is manually rotated. When the handle 4 is lifted, the hydraulic oil in the annular oil storage cavity 90102 enters the pressing oil cavity 6 through the piston cylinder oil suction path 90201 and the bottom plate oil suction path 105; due to the presence of the one-way oil pushing valve 7, the hydraulic oil in the pushing cavity 11 cannot enter the pressing oil cavity 6 through the piston cylinder oil pushing path 90202 and the bottom plate oil pushing path 104, thereby remaining unchanged.

[0061] When the handle 4 is lowered, the pressing oil piston 5 pushes the hydraulic oil in the pressing oil cavity 6 into the pushing cavity 11 through the bottom plate oil pushing path 104 and the piston cylinder oil pushing path 90202, and the pushing piston 10 moves to the left. Due to the presence of the one-way oil suction valve 8 and the pressure relief valve 12, the hydraulic oil cannot enter the annular oil storage cavity 90102. The left movement of the pushing piston 10 drives the moving cross beam 13 to move to the left, and the roller 14 rolls. When the roller 14 contacts the slope section 1302 of the moving cross beam 13, with the continuous left movement of the moving cross beam 13, the roller 14 drives the downward pulling structure 16 to move downward, the downward pulling structure 16 drives the pull rod adapter sleeve 17 to move downward, and the pull rod adapter sleeve 17 further drives the pull rod 19 to move downward. The pull rod 19 drives the circular pressing plate 22 to press the expansion sleeve 21 downward, and the inner tapered surface of the expansion sleeve 21 cooperates with the outer tapered surface of the circular table cavity body 1801. Through the downward movement of the expansion sleeve 21, the function of expanding the flexible gear ring part 20 is achieved.

[0062] When the measurement of the flexible gear ring part 20 is completed, the pressure is unloaded by loosening the pressure relief valve 12. Due to the presence of the one-way oil pushing valve 7, the hydraulic oil enters the annular oil storage cavity 90102 through another path (the path provided with the pressure relief valve 12) of the piston cylinder oil pushing path 90202. The pushing piston 10 drives the moving cross beam 13 to move to the right, and the downward pulling structure 9, the pull rod adapter sleeve 4 and the pull rod 5 move in the opposite direction to the installation direction (upward movement), thereby achieving the dismounting of the flexible gear ring part 20.

[0063] In this embodiment, according to the size of each flexible gear ring part 20 and the roundness of the flexible gear ring part 20 after heat treatment, the distance that the pull rod 19 needs to drop is predicted when the inner tooth division circle roundness of the flexible gear ring part 20 is tightened to 0.05. When the entire inspection mandrel assembly is completed and the position of the pull rod 19 is fixed, it is assumed that the distance between the lower end surface of the pull rod 19 and the upper end surface of the circular pressing plate 22 is h, the taper angle of the inner taper surface of the expansion sleeve 21 and the outer taper surface of the circular cone cavity 1801 is a, the difference between the theoretical addendum circle diameter of the flexible gear ring part 20 is d1, the difference between the theoretical outer diameter of the expansion sleeve 21 is d2, and the maximum value of the division circle of the flexible gear ring part 20 after heat treatment minus the average value of the theoretical difference value is c. As shown in Figure 5 , according to the geometric relationship of Figure 5 , if the inner tooth division circle roundness of the flexible gear ring part is tightened to 0.05, the distance x that the pull rod 5 needs to drop is in the range of h+(d1-d2+c-0.05) / 2tan(a / 2)≤x≤h+(d1-d2+c) / 2tan(a / 2), and the recommended drop distance is the middle value of this range. When actually applied, according to the middle value of this range, it is further verified whether the tightening requirement is met, and it may also need to be slightly adjusted. The distance that the adjusted pull rod 19 needs to drop is recorded. When the inspection mandrel is measured again, according to the recorded data, the pull rod 19 is lowered to the specified distance to tighten the flexible gear ring part 20 through the scale line of the scale ruler 24. Each batch only needs to verify whether the first piece meets the tightening requirement of the flexible gear ring part 20, without the need for multiple verifications, thereby improving the measurement efficiency. The scale ruler 24 exists to give the operator a standard for how to identify that the inner tooth division circle roundness of the flexible gear ring part is tightened to within 0.05 by the inspection mandrel, thereby avoiding the risk of not being tightened and avoiding the existing quality risks, while also improving the measurement efficiency.

Claims

1. A test arbor for flexible ring gear measurement, characterized by, The utility model provides a piston cylinder and oil pump, including bottom plate (1), one end of bottom plate (1) is fixedly connected with the lower end of one side of base (2), the lower surface of bottom plate (1) is even with the lower surface of base (2), the upper surface of the other end of bottom plate (1) is sequentially provided with piston cylinder installation cavity (101), connecting rod cooperation installation plate cavity (102) and pressure oil piston installation cavity (103) from left to right, and connecting rod cooperation installation plate cavity (102) is located between piston cylinder installation cavity (101) and pressure oil piston installation cavity (103), bottom plate (1) is also provided with bottom plate oil pushing path (104) and bottom plate oil suction path (105) respectively; Connecting rod cooperation installation plate cavity (102) is rotatably connected with one end of connecting rod (3), the other end of connecting rod (3) is rotatably connected with one end of handle (4), one end of pressure oil piston (5) is movably installed in pressure oil piston installation cavity (103), the other end of pressure oil piston (5) is also rotatably connected with one end of handle (4), the other end of handle (4) moves pressure oil piston (5) up and down, and one end of pressure oil piston (5) forms pressure oil cavity (6) with the bottom wall of pressure oil piston installation cavity (103), one end of bottom plate oil pushing path (104) is provided with one-way oil pushing valve (7) close to pressure oil cavity (6), and one end of bottom plate oil suction path (105) is provided with one-way oil suction valve (8) close to pressure oil cavity (6); The utility model also includes piston cylinder (9), and piston cylinder (9) includes push piston installation section (901) and oil path setting section (902) connected in sequence, push piston installation section (901) is fixedly connected with the middle part of one side of base (2), oil path setting section (902) is fixedly installed in piston cylinder installation cavity (101), push piston installation section (901) is independently provided with push piston installation cavity (90101) and annular oil storage cavity (90102) respectively, push piston installation cavity (90101) is horizontally set, annular oil storage cavity (90102) is circumferentially set around push piston installation cavity (90101), push piston installation cavity (90101) and annular oil storage cavity (90102) are not communicated, one end of push piston (10) is movably installed in push piston installation cavity (90101), the length of push piston (10) is greater than the length of push piston installation cavity (90101), and one end of push piston (10) forms push cavity (11) with the bottom wall of push piston installation cavity (90101), and annular oil storage cavity (90102) is located on the side close to push cavity (11). The oil path opening section (902) is respectively provided with a piston cylinder oil suction path (90201) and a piston cylinder oil pushing path (90202). One end of the piston cylinder oil suction path (90201) is in communication with the annular oil storage cavity (90102), and the other end of the piston cylinder oil suction path (90201) is in communication with the other end of the bottom plate oil suction path (105). One end of the piston cylinder oil pushing path (90202) is divided into two paths, one of which is in communication with the pushing type cavity (11), and the other of which is provided with a pressure relief valve (12) to enable one-way communication between the other of the piston cylinder oil pushing path (90202) and the annular oil storage cavity (90102). The other end of the piston cylinder oil pushing path (90202) is in communication with the other end of the bottom plate oil pushing path (104). The mobile cross beam (13) is movably mounted in the base (2) and comprises a left horizontal section (1301), an inclined section (1302) and a right horizontal section (1303) connected in sequence. The left horizontal section (1301) and the right horizontal section (1303) are arranged in parallel and are offset by the inclined section (1302). The left horizontal section (1301) is located above the right horizontal section (1303). The other end of the pushing piston (10) is threadedly connected with the right horizontal section (1303). The two rollers (14) are coaxially movably sleeved on the two roller shafts (15) and are arranged in correspondence with each other. The side surface of the roller (14) is in contact with the side surface of the mobile cross beam (13). The mobile cross beam (13) is located between the two rollers (14). The two roller shafts (15) are connected with the two pull-down structures (16). The two pull-down structures (16) are symmetrically arranged and are fixedly connected with the pull rod adapter sleeve (17). The pull rod adapter sleeve (17) is movably mounted in the inspection mandrel body (18). The pull rod adapter sleeve (17) is fixedly connected with the lower end of the pull rod (19).

2. Test arbor for measuring a flexible ring gear, according to claim 1, characterized in that The pushing piston mounting section (901) is further provided with an oil injection hole (90103) in communication with the annular oil storage cavity (90102). The oil injection hole (90103) is provided with a plug (26).

3. Test arbor for measuring a flexible ring gear, according to claim 1, characterized in that The inspection mandrel body (18) comprises a circular table cavity body (1801) with an open lower end. The upper end of the circular table cavity body (1801) has a smaller outer diameter than the lower end. A first cylindrical block (1802) is arranged at the center of the upper end surface of the upper cavity wall of the circular table cavity body (1801). A second cylindrical block (1803) is arranged at the center of the lower end surface of the upper cavity wall of the circular table cavity body (1801). The outer diameter of the second cylindrical block (1803) is greater than that of the first cylindrical block (1802). The lower end of the second cylindrical block (1803) is fitted into the base (2). The center of the first cylindrical block (1802) is coaxially vertically provided with a first pull rod hole (1804), the upper cavity wall of the circular cavity (1801) is provided with a second pull rod hole (1805), the inner diameters of the first pull rod hole (1804) and the second pull rod hole (1805) are equal, the center of the second cylindrical block (1803) is sequentially coaxially vertically provided with a pull rod connecting section mounting hole (180301) and a lower pull structure clamping section mounting hole (180302), the pull rod connecting section mounting hole (180301) and the lower pull structure clamping section mounting hole (180302) are used for cooperating with the installation of a pull rod connecting sleeve (17), the inner diameter of the first pull rod hole (1804) is smaller than that of the pull rod connecting section mounting hole (180301), and the inner diameter of the pull rod connecting section mounting hole (180301) is smaller than that of the lower pull structure clamping section mounting hole (180302). The lower end outer wall of the cylindrical cavity (1801) is integrally provided with a boss (1806) for bearing the flexible gear ring part (20), the lower end surface of the boss (1806) is flush with the lower end surface of the side wall of the circular cavity (1801), and the outer side wall of the cylindrical cavity (1801) further movably sleeves a bulge sleeve (21), and the bulge sleeve (21) is located between the cylindrical cavity (1801) and the flexible gear ring part (20). The upper cavity wall of the circular cavity (1801) is detachably provided with a circular pressing plate (22), the height of the circular pressing plate (22) is greater than that of the second cylindrical block (1803), the circular pressing plate (22) is provided with an opening (23) with one end closed and the other end open, and the first cylindrical block (1802) is located in the opening (23). The inspection mandrel body (18) is further provided with a scale (24), and the scale (24) is also located in the opening (23).

4. Test arbor for measuring a flexible ring gear, according to claim 3, characterized in that The base (2) is coaxially provided with a second cylindrical block mounting cavity (201) and a lower pull structure movable cavity (202) connected in sequence from top to bottom, the lower end of the second cylindrical block (1803) is fitted and mounted in the second cylindrical block mounting cavity (201), the inner diameter of the second cylindrical block mounting cavity (201) is greater than that of the lower pull structure movable cavity (202), the base (2) is further transversely provided with a left moving guide rail (203) with one end closed, the other end of the left moving guide rail (203) is in communication with the lower pull structure movable cavity (202), the base (2) is further provided with a right moving guide rail (204) with both ends open, the base (2) is further provided with a piston cylinder mounting hole (205), one end of the push piston mounting section (901) is mounted in the piston cylinder mounting hole (205), one end of the right moving guide rail (204) is in communication with the lower pull structure movable cavity (202), the other end of the right moving guide rail (204) is in communication with the piston cylinder mounting hole (205), the inner diameter of the piston cylinder mounting hole (205) is greater than that of the right moving guide rail (204), the left moving guide rail (203) and the right moving guide rail (204) are disposed in a staggered manner, and the left moving guide rail (203) is located above the right moving guide rail (204).

5. The inspection mandrel for measuring a flexible ring gear as set forth in claim 3, characterized in that, The pull rod adapter sleeve (17) comprises a pull rod connecting section (1701) and a lower pull structure clamping section (1702) connected in sequence, the height of the lower pull structure clamping section (1702) is less than the height of a lower pull structure clamping section mounting hole (180302), the pull rod connecting section (1701) is movably mounted in a pull rod connecting section mounting hole (180301), and the lower pull structure clamping section (1702) is movably mounted in a lower pull structure clamping section mounting hole (180302). The third pull rod hole (1703) is coaxially arranged in the center of the pull rod connecting section (1701) in the vertical direction, the lower pull structure clamping hole (1704) is coaxially arranged in the center of the lower pull structure clamping section (1702) in the vertical direction, the lower pull structure clamping hole (1704) and the third pull rod hole (1703) are connected in communication, the inner diameter of the lower pull structure clamping hole (1704) is greater than the inner diameter of the third pull rod hole (1703), the inner diameter of the third pull rod hole (1703) is equal to the inner diameter of the second pull rod hole (1805), and the annular clamping cavity (1705) is coaxially arranged in the lower pull structure clamping section (1702), the annular clamping cavity (1705) and the lower pull structure clamping hole (1704) are connected in communication, and the annular clamping cavity (1705) is used for fixing and clamping the lower pull structure (16).

6. Test arbor for measuring a flexible ring gear, according to claim 5, characterized in that The first pull rod hole (1804), the second pull rod hole (1805), the third pull rod hole (1703) and the lower pull structure clamping hole (1704) are connected in sequence, the pull rod (19) is mounted in the first pull rod hole (1804), the second pull rod hole (1805) and the third pull rod hole (1703), the lower end of the pull rod (19) is fixedly mounted in the third pull rod hole (1703), the upper end of the pull rod (19) is provided with a pull rod handle (25), the outer diameter of the pull rod handle (25) is greater than the inner diameter of the gap (23), and the pull rod handle (25) is located above the circular pressing plate (22).

7. Test arbor for measuring a flexible ring gear, according to claim 5, characterized in that The lower pull structure (16) comprises a trapezoidal circular arc plate (1601), the trapezoidal circular arc plate (1601) is fixedly clamped in the annular clamping cavity (1705), the non-circular arc end lower end surface of the trapezoidal circular arc plate (1601) and the upper end surface of the roller mounting plate (1602) are fixedly connected, the non-circular arc end surface of the trapezoidal circular arc plate (1601) is parallel to the side surface of the roller mounting plate (1602), the lower end of the roller mounting plate (1602) is provided with two mounting holes, the two ends of the roller shaft (15) are fixedly mounted in the two mounting holes corresponding to the two roller mounting plates (1602) respectively, and the lower end of the roller mounting plate (1602) can move up and down in the lower pull structure movable cavity (202).

8. A test arbor for measuring a flexible ring gear as defined in claim 4, wherein, The left horizontal section (1301) is movably mounted in the left moving guide rail (203), the right horizontal section (1303) is movably mounted in the right moving guide rail (204), and the inclined section (1302) is located in the lower pull structure movable cavity (202).

9. The inspection mandrel for measuring a flexible ring gear as set forth in claim 4, characterized in that, The push piston mounting section (901) is mounted at one end in the piston cylinder mounting hole (205) through bolts.

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