An automatic positioning device for testing hydraulic motors with four-hole square mounting surfaces

Abstract

The present invention relates to an automatic positioning device for testing a hydraulic motor with a four-hole square mounting surface, and relates to the technical field of a hydraulic motor detection device. The device comprises a base plate, an L-shaped support plate which is limitedly slidably arranged on the upper side of the base plate by two T-shaped rods, a T-shaped slide groove for installing the two T-shaped rods is provided on the base plate, a hydraulic motor is placed on the L-shaped support plate, the hydraulic motor has four mounting holes, and an adjustment positioning device is provided on the base plate and the L-shaped support plate. When testing the hydraulic motor, the present invention can quickly adjust the initial position of the hydraulic motor, automatically realize position positioning, and perform multiple clamping and locking on the hydraulic motor, so as to prevent the position of the hydraulic motor from being offset during the test, thereby affecting the test effect.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic motor detection devices, and in particular to an automatic positioning device for testing hydraulic motors with a four-hole square mounting surface. Background Art

[0002] A hydraulic motor is an actuator in a hydraulic system that converts the hydraulic energy provided by a hydraulic pump into mechanical energy (torque and speed) of its output shaft. Hydraulic motors are widely used in the fields of injection molding machinery, ships, hoists, engineering machinery, construction machinery, etc. Hydraulic motors are required to undergo factory tests and form tests before formal delivery. The test results can be used to evaluate the quality and performance of hydraulic motors and determine their applicable working conditions and application scenarios.

[0003] For example, in the existing Chinese patent with the publication number CN220251238U, a torque test device for household electrical motors is disclosed, which includes a motor, a base, a first guide rod, a first fixed plate, a display screen, a connecting line, a positioning sleeve and a detector. The motor is placed on the base, the first guide rod is fixedly connected to the left side of the top of the base, and the first fixed plate is slidably arranged on the first guide rod. Through the above-mentioned prior art, initially, the staff rotates the second screw to drive the clamping plate to move backwards, and the second guide rod plays a guiding role. Then the staff places the motor between the two clamping plates, and the staff rotates the third screw to drive the limit plate to move backwards. Then the staff reverses the second screw to drive the clamping plates to move toward each other, and the staff reverses the third screw to drive the limit plates to move toward each other. The third guide rod plays a guiding role, and then different motors can be clamped to avoid the position of the motor from being offset during the test. After the test is completed, the staff can take out the motor.

[0004] However, the above prior art has the following technical defects:

[0005] When the above device is in use, the staff needs to turn the second screw rod in sequence to drive the clamping plate to move backwards, and after the motor is placed, turn the third screw rod to drive the limit plate to move backwards, and then reverse the second screw rod to drive the clamping plate to move toward each other, and reverse the third screw rod to drive the limit plate to move toward each other, so that the motor can be clamped, and the motor needs to be gradually released after the test is completed; so the operation is cumbersome and requires the staff to repeatedly drive the relevant components. This will make the overall test time longer, and the labor intensity of the staff will increase while the test efficiency will not be improved.

[0006] Based on this, on the basis of the existing torque testing device for household appliance motors, in order to overcome the above-mentioned technical defects, there is still room for improvement. Summary of the invention

[0007] In order to be able to quickly adjust the initial position of the hydraulic motor when testing the hydraulic motor, automatically realize the position positioning and perform multiple clamping and locking on the hydraulic motor to prevent the position of the hydraulic motor from shifting during the test and affecting the test work, the present application provides an automatic positioning device for testing a hydraulic motor with a four-hole square mounting surface.

[0008] The present application provides an automatic positioning device for testing a hydraulic motor with a four-hole square mounting surface, which adopts the following technical solution:

[0009] An automatic positioning device for testing a hydraulic motor with a four-hole square mounting surface, comprising a bottom plate, an L-shaped support plate which is limitedly slidably arranged on the upper side of the bottom plate through two T-shaped rods, the bottom plate is provided with a T-shaped slide groove for installing the two T-shaped rods, a hydraulic motor is placed on the L-shaped support plate, the hydraulic motor has four mounting holes, and the bottom plate and the L-shaped support plate are provided with an adjustment positioning device;

[0010] The adjustment and positioning device includes a side vertical plate fixedly installed on the upper side of the base plate, a side abutment plate is fixedly provided on the side of the side vertical plate facing the L-shaped support plate, a clamping abutment plate is fixedly provided on the side of the L-shaped support plate facing the side vertical plate, an adjustment mechanism is provided on the L-shaped support plate, and locking units are provided on the side vertical plate and the L-shaped support plate.

[0011] Preferably, the adjusting mechanism comprises a T-shaped shift block, an adjusting cross bar, a bidirectional threaded rod, a transmission gear and a driving assembly, the two T-shaped shift blocks are symmetrically limited and slidably arranged on an L-shaped support plate, the L-shaped support plate is provided with a limiting slide groove for the sliding installation of the two T-shaped shift blocks, the two adjusting cross bars are respectively fixedly installed on one side of the two T-shaped shift blocks, the bidirectional threaded rod threads penetrate the two T-shaped shift blocks and are rotatably arranged in the limiting slide groove, the T-shaped shift block is provided with an internal threaded hole adapted to the bidirectional threaded rod through the thread, the transmission gear is fixedly sleeved in the middle of the bidirectional threaded rod, and the driving assembly is arranged on the base plate and the L-shaped support plate.

[0012] Preferably, the driving assembly includes a T-shaped lower support plate, a driving cylinder, a driving gear and an adjusting member. The T-shaped lower support plate is fixedly installed between two T-shaped rods. A rectangular sliding groove is penetrated through the bottom plate for sliding installation of the T-shaped lower support plate. The driving cylinder is fixedly arranged in the rectangular sliding groove, and the telescopic end is fixedly connected to the T-shaped lower support plate. The driving gear is rotatably installed in the limiting sliding groove below the transmission gear through the middle round rod and meshes with the transmission gear. The adjusting member is arranged on the bottom plate below the driving gear.

[0013] Preferably, the adjusting member includes a U-shaped inner groove seat, a positioning pin, a driving rack and a holding rod, the U-shaped inner groove seat is fixedly mounted on the base plate below the driving gear, the positioning pin is slidably inserted in the U-shaped inner groove seat, and the U-shaped inner groove seat is penetrated by a double insertion hole for the positioning pin to be inserted and installed, the driving rack is slidably set in the U-shaped inner groove seat and intermittently meshed with the driving gear, and a plurality of locking holes that are equidistantly opened on the driving rack are matched with the double insertion holes, and the holding rod is fixedly mounted on one end of the driving rack.

[0014] Preferably, the locking unit includes a fixed lock plate, a movable lock plate, a linkage, a main abutment and a matching part, the fixed lock plate is fixedly arranged on the side vertical plate, the movable lock plate is limited and slidably arranged on the upper side of the L-shaped support plate by two dovetail bars, the L-shaped support plate is provided with a dovetail slide groove for the sliding installation of the two dovetail bars, the fixed lock plate and the movable lock plate are symmetrically penetrated with downward exploration holes with a hole diameter larger than the installation hole, the linkage is arranged on the side vertical plate and the L-shaped support plate, and the main abutment and matching part are respectively arranged on the fixed lock plate and the movable lock plate.

[0015] Preferably, the linkage comprises a side rack, a side support block, a column gear and a linkage rack, the side rack is symmetrically fixedly installed on both sides of the movable locking plate, the two side support blocks are symmetrically fixedly clamped on both sides of the L-shaped support plate, the two column gears are rotatably arranged on the side support blocks, and are respectively meshed with the side racks, the L-shaped support plate is symmetrically provided with side grooves for installing the column gears, the two linkage racks are symmetrically fixedly arranged on the side vertical plate facing the side of the L-shaped support plate, and are intermittently meshed with the column gears.

[0016] Preferably, the main resistance member includes a locking cylinder, a T-shaped end rod, a main conical column and an inner groove end block. The locking cylinder is fixedly installed on the side of the side vertical plate away from the L-shaped support plate through a cylinder base. The T-shaped end rod is fixedly installed on the telescopic end of the locking cylinder. The two main conical columns are symmetrically fixed on the T-shaped end rod and extend downward into the lower exploration hole of the fixed lock plate. The two inner groove end blocks are symmetrically fixedly installed on both ends of the T-shaped end rod.

[0017] Preferably, the mating parts include an L-shaped support column, a secondary end rod, a supporting push rod, a secondary conical column and an inserted end block, the L-shaped support column is fixedly arranged on the upper side of the movable lock plate, the secondary end rod is slidably arranged on the side of the L-shaped support column facing the fixed lock plate through the upper and lower limit blocks of the inner protrusion, the L-shaped support column is provided with an inner concave slide groove for the sliding installation of the inner protrusion, the supporting push rod is arranged in the inner concave slide groove, one end is fixedly connected to the lower side of the inner protrusion, and the other end is fixedly connected to the movable lock plate, the movable lock plate is provided with an inner circular hole groove for the supporting push rod to shrink, the two secondary conical columns are symmetrically fixedly arranged on the secondary end rod and extend downward into the lower exploration hole of the movable lock plate, and the two inserted end blocks are symmetrically fixedly arranged at both ends of the secondary end rod.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. After the hydraulic motor is placed on the L-shaped support plate, the L-shaped support plate can support the hydraulic motor and realize overall movement; according to the shape and size of the placed hydraulic motor, the movable spacing of the two T-shaped shifting blocks can be adjusted through the adjusting piece to meet the purpose of centering the position of hydraulic motors of different sizes.

[0020] 2. Start the drive cylinder to retract, which can drive the L-shaped support plate to slide toward the side vertical plate through the T-shaped lower support plate. The driving rack can drive the driving gear to rotate, which drives the transmission gear to rotate, so that the bidirectional threaded rod rotates and drives the two T-shaped moving blocks to slide synchronously. The position of the hydraulic motor can be adjusted by adjusting the cross bar, which can keep the hydraulic motor in the center of the L-shaped support plate, and preliminarily adjust the position of the hydraulic motor.

[0021] 3. When the driving cylinder drives the L-shaped support plate to move to a certain position, the side abutment plate and the clamping abutment plate cooperate with each other to adjust the position of the hydraulic motor again, so that the hydraulic motor can remain in the final set position; in this process, the operation of the linkage will drive the movable lock plate to slide upwards of the hydraulic motor, and eventually it will abut against the fixed lock plate, and finally the locking cylinder will be started to operate so that the main conical column and the auxiliary conical column are respectively inserted into the four mounting holes of the hydraulic motor, thereby achieving the final position locking of the hydraulic motor to avoid the position of the hydraulic motor from shifting during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of the present invention.

[0023] Figure 2 It is an exploded view of the base plate and the L-shaped supporting plate of the present invention.

[0024] Figure 3 It is a schematic diagram of some components of the adjusting and positioning device of the present invention.

[0025] Figure 4 It is a schematic diagram of the regulating mechanism of the present invention.

[0026] Figure 5 The present invention Figure 4 A magnified image of area A.

[0027] Figure 6 It is an exploded view of some components of the drive assembly of the present invention.

[0028] Figure 7 It is a cross-sectional view of some components of the drive assembly of the present invention.

[0029] Figure 8 It is an exploded view of the adjusting member of the present invention.

[0030] Fig. 9 It is a schematic diagram of the locking unit of the present invention.

[0031] Fig.10 It is an exploded view of the L-shaped support plate and the movable locking plate of the present invention.

[0032] Fig.11 It is a cross-sectional view of the main abutment member of the present invention.

[0033] Fig.12 It is an exploded view of the matching parts of the present invention.

[0034] Fig.13 It is an exploded view of the adapter of the present invention.

[0035] Fig.14 It is a cross-sectional view of the adapter of the present invention.

[0036] Explanation of the reference numerals: 1. bottom plate; 11. T-shaped rod; 12. L-shaped support plate; 101. T-shaped slide groove; 13. hydraulic motor; 131. mounting hole; 2. adjustment and positioning device; 22. side vertical plate; 23. side abutment plate; 24. clamping abutment plate; 3. adjustment mechanism; 4. locking unit; 31. T-shaped shift block; 32. adjustment cross bar; 33. bidirectional threaded rod; 34. transmission gear; 5. drive assembly; 122. limit slide groove; 311. internal threaded hole; 51. T-shaped lower abutment plate; 52. drive cylinder; 53. drive gear; 6. adjustment member; 102. rectangular slide; 54. middle round rod; 61. U-shaped inner groove seat; 62. positioning pin; 63. drive rack; 64. holding rod; 611. double insertion hole; 631. locking hole; 41. fixed lock plate; 42. movable lock plate; 7. linkage device; 8, main abutment; 9, matching part; 43, dovetail bar; 123, dovetail slide; 411, lower exploration hole; 71, side rack; 72, side support block; 73, column gear; 74, linkage rack; 124, side groove; 81, locking cylinder; 82, T-shaped end rod; 83, main tapered column; 84, inner groove end block; 85, cylinder base; 91, L-shaped abutment column; 92, auxiliary end rod; 93. Support push rod; 94. Secondary conical column; 95. Insert end block; 96. Inner convex block; 911. Inner concave slide groove; 421. Inner circular hole groove; 14. Adapter; 141. Square rod; 142. Push plate; 125. Square plug hole; 126. Inner rectangular groove; 143. End button round block; 144. T-shaped round button; 145. Adjusting screw; 127. Threaded through hole; 146. Drive end button. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-Figure 14 This application is described in further detail.

[0038] An embodiment of the present application discloses an automatic positioning device for testing a hydraulic motor with a four-hole square mounting surface. When testing the hydraulic motor, the device can quickly adjust the initial position of the hydraulic motor, automatically realize position positioning, and perform multiple clamping and locking on the hydraulic motor to prevent the position of the hydraulic motor from shifting during the test and affecting the test work.

[0039] Embodiment 1:

[0040] Reference Figure 1 and Figure 2 As shown, the present application provides an automatic positioning device for testing a hydraulic motor, comprising a base plate 1, an L-shaped support plate 12 which is limitedly slidably arranged on the upper side of the base plate 1 by two T-shaped rods 11, and a T-shaped slide groove 101 for installing the two T-shaped rods 11 is provided on the base plate 1. When the L-shaped support plate 12 is subjected to force, it can slide left and right on the base plate 1 along the length direction of the base plate 1; a hydraulic motor 13 is placed on the L-shaped support plate 12, and the hydraulic motor 13 preferably has four mounting holes 131 in this embodiment, and it should be noted that the spacing between two adjacent mounting holes 131 is equal. An adjustment positioning device 2 is provided on the base plate 1 and the L-shaped support plate 12, which is used to automatically adjust and position the hydraulic motor 13 placed by the operator and then lock it, so as to prevent the position of the hydraulic motor 13 from being offset during the test and affecting the normal test work.

[0041] Reference Figures 1 to 3 As shown, when the operator places the hydraulic motor 13 to be tested on the L-shaped support plate 12, the L-shaped support plate 12 can support the hydraulic motor 13 and drive the hydraulic motor 13 to move as a whole. A side vertical plate 22 is fixedly installed on the upper side of the bottom plate 1, and a side abutment plate 23 is fixedly installed on the side of the side vertical plate 22 facing the L-shaped support plate 12, and a clamping plate 24 is fixedly installed on the side of the L-shaped support plate 12 facing the side vertical plate 22. The side abutment plate 23 and the clamping plate 24 can adjust the position of the hydraulic motor 13 by cooperating with each other.

[0042] The L-shaped support plate 12 is provided with an adjustment mechanism 3 for automatically making multiple adjustments to the position of the hydraulic motor 13; the side vertical plate 22 and the L-shaped support plate 12 are provided with a locking unit 4 for locking the position of the adjusted and positioned hydraulic motor 13. After the operator places the hydraulic motor 13 to be tested on the L-shaped support plate, the adjustment mechanism 3 is activated to automatically adjust and position the hydraulic motor 13. After the positioning is completed, the locking unit 4 is activated to tightly lock the positioned hydraulic motor 13 to prevent the hydraulic motor 13 from shaking and shifting during the test.

[0043] Reference Figure 4 and Figure 5As shown, considering the need to automatically adjust the position of the hydraulic motor 13 to prevent the operator from placing the hydraulic motor 13 with a large position deviation and affecting the subsequent position locking, the adjustment mechanism 3 includes a T-shaped shift block 31, an adjustment cross bar 32, a bidirectional threaded rod 33, a transmission gear 34 and a drive assembly 5; the two T-shaped shift blocks 31 are symmetrically limited and slidably arranged on the L-shaped support plate 12, and the L-shaped support plate 12 is provided with a limit slide groove 122 for the sliding installation of the two T-shaped shift blocks 31, and the two adjustment cross bars 32 are respectively fixedly installed on one side of the two T-shaped shift blocks 31. In the initial state, there is a gap between the two T-shaped shift blocks 31. The maximum spacing, so the spacing between the two adjusting cross bars 32 is also the maximum spacing. It should be noted that when the operator places the hydraulic motor 13, the hydraulic motor 13 needs to be placed between the two adjusting cross bars 32; the two-way threaded rod 33 threads through the two T-shaped shift blocks 31 and rotates in the limiting slide groove 122, and the T-shaped shift block 31 has an internal threaded hole 311 that is compatible with the two-way threaded rod 33 through the thread. When the two-way threaded rod 33 is subjected to force and rotates, it can synchronously drive the two T-shaped shift blocks 31 to slide symmetrically in the limiting slide groove 122 through cooperation with the internal threaded hole 311 opened on the T-shaped shift block 31.

[0044] The transmission gear 34 is fixedly sleeved in the middle of the bidirectional threaded rod 33 , and the driving assembly 5 is arranged on the bottom plate 1 and the L-shaped support plate 12 , and is used to drive the L-shaped support plate 12 and drive the transmission gear 34 to rotate at the same time.

[0045] Reference Figure 6 and Figure 7 As shown, in order to drive the L-shaped support plate 12 and at the same time move the adjusting cross bar 32 to adjust the position of the hydraulic motor 13, the driving assembly 5 includes a T-shaped lower support plate 51, a driving cylinder 52, a driving gear 53 and an adjusting member 6; the T-shaped lower support plate 51 is fixedly installed between the two T-shaped rods 11, and a rectangular sliding opening 102 for sliding installation of the T-shaped lower support plate 51 is opened on the bottom plate 1, the driving cylinder 52 is fixedly arranged in the rectangular sliding opening 102, and the telescopic end is fixedly connected to the T-shaped lower support plate 51, the driving gear 53 is rotatably installed in the limiting sliding groove 122 below the transmission gear 34 through the middle round rod 54, and meshes with the transmission gear 34, and the adjusting member 6 is arranged on the bottom plate 1 below the driving gear 53, for adjusting the sliding distance of the two T-shaped shifting blocks 31.

[0046] Specifically, when the operator places the hydraulic motor 13 on the L-shaped support plate 12 between the two adjusting cross bars 32, the drive cylinder 52 is started to contract, so that the L-shaped support plate 12 slides toward the side vertical plate 22. In the early stage of sliding, under the action of the adjusting member 6, the transmission gear 34 can be rotated to drive the two-way threaded rod 33 to rotate, and then the two T-shaped shifting blocks 31 can be driven to drive the two adjusting cross bars 32 to move synchronously toward the central axis of the L-shaped support plate 12, so as to adjust the hydraulic motor 13 to the middle position of the L-shaped support plate 12, thereby achieving the effect of preliminary adjustment of the hydraulic motor 13.

[0047] Reference Figure 7 and Figure 8 As shown, considering the need to be suitable for adjusting the position of hydraulic motors 13 of different sizes, the adjusting member 6 includes a U-shaped inner groove seat 61, a positioning pin 62, a driving rack 63 and a holding rod 64; the U-shaped inner groove seat 61 is fixedly installed on the bottom plate 1 below the driving gear 53, the positioning pin 62 is slidably inserted in the U-shaped inner groove seat 61, and the U-shaped inner groove seat 61 is penetrated with a double insertion hole 611 for the positioning pin 62 to be inserted and installed, the driving rack 63 is slidably set in the U-shaped inner groove seat 61, and intermittently meshes with the driving gear 53. In this embodiment, the preferred driving rack 63 is evenly spaced and has eleven locking holes 63 that are compatible with the double insertion holes 611. 1. It should be noted that the driving rack 63 is a removable movable setting. When the locking hole 631 on the driving rack 63 is aligned with the inserted double hole 611, the positioning pin 62 passes through the locking hole 631 and the inserted double hole 611 to lock the driving rack 63 in the U-shaped inner groove seat 61. At this time, the driving rack 63 and the driving gear 53 are in a meshing state, that is, when the L-shaped support plate 12 moves, the driving rack 63 will drive the driving gear 53 to rotate, and then the two T-shaped shifting blocks 31 can be driven to slide in the limiting slide groove 122 through the transmission gear 34 and the two-way threaded rod 33, and the length of the sliding distance depends on the meshing time of the driving rack 63 and the driving gear 53. The length of the meshing time of the driving rack 63 and the driving gear 53 can be adjusted by inserting the positioning pin 62 into the locking holes 631 at different positions.

[0048] The holding rod 64 is fixedly installed on one end of the driving rack 63; when the volume of the hydraulic motor 13 is large, the two adjusting cross bars 32 only need to slide a small movement process, so that the driving rack 63 can be pulled outward for a distance through the holding rod 64. Specifically, the positioning pin 62 is first pulled out to release the lock on the driving rack 63, and then the driving rack 63 is driven downward by the holding rod 64 to no longer mesh with the driving gear 53 and then pulled out. The specific pulling-out length depends on the actual volume and width of the hydraulic motor 13. The larger the volume and the wider the width, the longer the pull-out distance needs to be. The longer the degree, the driving rack 63 is finally driven to move up so that the locking hole 631 is aligned with the double insertion hole 611, and finally the positioning pin 62 can be reinserted. At this time, when the L-shaped support plate 12 moves toward the side vertical plate 22, the engagement time of the driving rack 63 and the driving gear 53 is shorter, that is, the distance that can be driven to move the adjusting cross bar 32 is shorter, to avoid that when the adjusting cross bar 32 adjusts the hydraulic motor 13 to the center position, the driving rack 63 and the driving gear 53 are still in a meshing state, causing the L-shaped support plate 12 to be unable to continue to move toward the side vertical plate 22.

[0049] Reference Fig. 9 and Fig.10 As shown, since it is necessary to lock the hydraulic motor 13 after positioning to avoid the position of the hydraulic motor 13 being offset during the test, thereby affecting the test work, the locking unit 4 includes a fixed locking plate 41, a movable locking plate 42, a linkage 7, a main abutment 8 and a matching member 9; the fixed locking plate 41 is fixedly arranged on the side vertical plate 22, and the movable locking plate 42 is limitedly slidably arranged on the upper side of the L-shaped support plate 12 through two dovetail bars 43, and the L-shaped support plate 12 is provided with a dovetail groove 123 for the sliding installation of the two dovetail bars 43, and the fixed locking plate 41 and the movable locking plate 42 are symmetrically penetrated with downward exploration holes 411 with a larger aperture than the mounting hole 131, and the fixed locking plate 41 and the movable locking plate 42 are fixedly arranged on the side vertical plate 22, and the movable locking plate 42 is limitedly slidably arranged on the upper side of the L-shaped support plate 12 through two dovetail bars 43. There are two downward exploration holes 411 on each of the upper and lower parts, and when the fixed lock plate 41 and the movable lock plate 42 are in contact and merged, the positions of the four downward exploration holes 411 just correspond to the top of the four mounting holes 131 of the hydraulic motor 13 after the position adjustment and positioning are completed; the linkage device 7 is arranged on the side vertical plate 22 and the L-shaped support plate 12, and is used for automatically driving the movable lock plate 42 when the L-shaped support plate 12 is driven to move to a certain position, so as to realize active contact, merger and separation with the fixed lock plate 41; the main resistance member 8 and the matching member 9 are respectively arranged on the fixed lock plate 41 and the movable lock plate 42, and are used for cooperating with each other to tightly lock the hydraulic motor 13 through the four mounting holes 131 on the hydraulic motor 13.

[0050] Continue to refer to Fig. 9 and Fig.10As shown, in order to automatically adjust the position of the movable lock plate 42 and facilitate the operator to take and place the hydraulic motor 13, the linkage 7 includes a side rack 71, a side support block 72, a column gear 73 and a linkage rack 74; the side rack 71 is symmetrically fixedly installed on both sides of the movable lock plate 42, and the side support blocks 72 are symmetrically fixedly clamped on both sides of the L-shaped support plate 12, and the two column gears 73 are rotatably arranged on the side support blocks 72 and respectively mesh with the side racks 71, and the L-shaped support plate 12 is symmetrically provided with side grooves 124 for installing the column gears 73, and the two linkage racks 74 are symmetrically fixedly arranged on the side vertical plate 22 facing the side of the L-shaped support plate 12, and intermittently mesh with the column gear 73.

[0051] After starting the drive cylinder 52 to drive the L-shaped support plate 12 to move a certain distance toward the side vertical plate 22, the linkage rack 74 will mesh with the column gear 73 to drive the column gear 73 to rotate through the side rack 71 to drive the movable lock plate 42 to slide toward the fixed lock plate 41 until the L-shaped support plate 12 reaches the final position, and the movable lock plate 42 is abutted and merged with the fixed lock plate 41; the movable lock plate 42 and the fixed lock plate 41 form a square located directly above the hydraulic motor 13, and each downward exploration hole 411 is aligned with each mounting hole 131 respectively.

[0052] Reference Fig.11 As shown, considering the need to cooperate with the mounting hole 131 on the hydraulic motor 13 to lock the hydraulic motor 13, the main stopper 8 includes a locking cylinder 81, a T-shaped end rod 82, a main conical column 83 and an inner groove end block 84; the locking cylinder 81 is fixedly mounted on the side of the side vertical plate 22 away from the L-shaped support plate 12 through a cylinder base 85, and the T-shaped end rod 82 is fixedly arranged on the telescopic end of the locking cylinder 81, and the two main conical columns 83 are symmetrically fixedly arranged on the T-shaped end rod 82 and extend downward into the lower exploration hole 411 of the fixed lock plate 41. It should be noted that the maximum diameter of the main conical column 83 is greater than the aperture length of the mounting hole 131; the two inner groove end blocks 84 are symmetrically fixedly installed at both ends of the T-shaped end rod 82.

[0053] Starting the locking cylinder 81 can synchronously drive the two main conical columns 83 to move downward and extend into the corresponding mounting holes 131 through the T-shaped end rod 82 until the main conical columns 83 are stuck at the mounting holes 131, so as to achieve the purpose of tightly locking the hydraulic motor 13 through the mounting holes 131 on the hydraulic motor 13.

[0054] Reference Fig.12As shown, since it is necessary to cooperate with the main abutment 8 to lock the multiple mounting holes 131 on the hydraulic motor 13, the matching part 9 includes an L-shaped abutment column 91, a secondary end rod 92, a support push rod 93, a secondary conical column 94 and an inserted end block 95; the L-shaped abutment column 91 is fixedly arranged on the upper side of the movable lock plate 42, and the secondary end rod 92 is slidably arranged on the side of the L-shaped abutment column 91 facing the fixed lock plate 41 through the inner protrusion 96. The L-shaped abutment column 91 is provided with an inner concave groove 911 for the sliding installation of the inner protrusion 96. The support push rod 93 is arranged in the inner concave groove 911, one end of which is fixedly connected to the lower side of the inner protrusion 96, and the other end is fixedly connected to the movable lock plate 42 Next, it should be noted that the support push rod 93 is preferably a spring rod, and the support push rod 93 always has the driving force to push the secondary end rod 92 to slide upward through the inner protrusion 96, that is, in the absence of other external forces, the secondary end rod 92 is always in the highest position of the inner concave slide groove 911; the movable lock plate 42 is provided with an inner circular hole groove 421 for the support push rod 93 to contract, and the two secondary conical columns 94 are symmetrically fixed on the secondary end rod 92 and extend downward into the lower exploration hole 411 of the movable lock plate 42. Like the main conical column 83, the maximum diameter of the secondary conical column 94 is greater than the aperture length of the mounting hole 131; the two inserted end blocks 95 are symmetrically fixedly installed at both ends of the secondary end rod 92.

[0055] When the movable lock plate 42 slides toward the fixed lock plate 41 and merges with it, the inserted end block 95 will be inserted into the inner groove end block 84, so that when the locking cylinder 81 is started to drive the T-shaped end rod 82 to move downward, the secondary end rod 92 can be driven downward synchronously, and the secondary conical column 94 on the secondary end rod 92 can be driven to move downward and extend into the corresponding mounting hole 131 until it is stuck in the mounting hole 131. At this point, the two main conical columns 83 and the two secondary conical columns 94 are respectively stuck in the four mounting holes 131, thereby achieving the effect of tightly locking the positioned hydraulic motor 13.

[0056] Embodiment 2:

[0057] Reference Fig.13 and Fig.14As shown, on the basis of the first embodiment, in order to improve the applicability and meet the positioning of the hydraulic motors 13 of different sizes, an adapter 14 is provided on the side of the L-shaped support plate 12 facing the side vertical plate 22, and the adapter 14 includes a push plate 142 which is inserted and slidably installed on the side of the L-shaped support plate 12 facing the side vertical plate 22 through two square rods 141, and the L-shaped support plate 12 is provided with a square plug hole 125 for the two square rods 141 to be inserted and installed and an inner rectangular groove 126 adapted to the push plate 142, and the push plate 142 is provided on the side facing the inner rectangular groove 126 through the end button round block 14 The T-shaped round button 144 is provided for limited rotation. It should be noted that the end button round block 143 is fixedly installed on one side of the push plate 142, and the end button round block 143 and the T-shaped round button 144 are provided for limited rotation. The L-shaped supporting plate 12 is provided with an adjusting screw 145 threadedly penetrated and rotatably arranged at the inner rectangular groove 126, and one end of the adjusting screw 145 is fixedly connected to the T-shaped round button 144. The L-shaped supporting plate 12 is provided with a threaded through hole 127 adapted to the adjusting screw 145, and a driving end button 146 is fixedly arranged at one end of the adjusting screw 145 away from the T-shaped round button 144.

[0058] When the volume and thickness of the hydraulic motor 13 are relatively small, the adjusting screw 145 is rotated to drive the push plate 142 to move toward the side push plate 23, so that the push plate 142 and the side push plate 23 can still cooperate with each other to limit and adjust the hydraulic motor 13 to the specified position; it should be noted that when the hydraulic motor 13 to be tested is larger or smaller, the distance between the mounting holes 131 opened on the hydraulic motor 13 should remain unchanged. After the adjustment and positioning of the larger or smaller hydraulic motor 13 is completed, the position of the mounting hole 131 still corresponds to the position of the upper and lower exploration holes 411 of the fixed lock plate 41 and the movable lock plate 42 after the interference is combined, so that the hydraulic motor 13 can be tightly locked.

[0059] The implementation principle of this embodiment is:

[0060] (1) Adjustment and placement: First, adjust the positions of the drive rack 63 and the push plate 142 in turn according to the size of the hydraulic motor 13 to be tested. After the adjustment is completed, place the hydraulic motor 13 to be tested on the L-shaped support plate 12 between the two adjustment cross bars 32.

[0061] (2) Adjustment and positioning: Then, the drive cylinder 52 is started to operate and drive the L-shaped support plate 12 to slide toward the side vertical plate 22. During movement, under the action of the adjustment member 6, the transmission gear 34 rotates and drives the bidirectional threaded rod 33 to rotate, so as to drive the two T-shaped shifting blocks 31 to drive the two adjustment cross bars 32 to move synchronously toward the central axis of the L-shaped support plate 12, and adjust the hydraulic motor 13 to the middle position of the L-shaped support plate 12, so as to achieve the effect of preliminary adjustment of the hydraulic motor 13. The side abutment plate 23 cooperates with the clamping abutment plate 24 or the side abutment plate 23 cooperates with the push abutment plate 142 to adjust the position of the hydraulic motor 13 again.

[0062] (3) Interference and merging: After the driving cylinder 52 drives the L-shaped support plate 12 to move a certain distance toward the side vertical plate 22, the linkage rack 74 will mesh with the column gear 73 to drive the column gear 73 to rotate through the side rack 71 to drive the movable lock plate 42 to slide toward the fixed lock plate 41. When the L-shaped support plate 12 reaches the final position, the movable lock plate 42 is in conflict with the fixed lock plate 41 and merges.

[0063] (4) Press down to lock: When the movable lock plate 42 slides toward the fixed lock plate 41 and abuts against it, the inserted end block 95 will be inserted into the inner groove end block 84. Starting the locking cylinder 81 can synchronize the two main conical columns 83 on the T-shaped end rod 82 and the secondary conical columns 94 on the secondary end rod 92 to move downward and extend into the corresponding mounting holes 131 until they are stuck in the mounting holes 131, thereby making the two main conical columns 83 and the two secondary conical columns 94 respectively stuck in the four mounting holes 131, thereby achieving the effect of tightly locking the positioned hydraulic motor 13.

[0064] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic positioning device for testing a hydraulic motor with a four-hole square mounting surface, comprising a base plate (1), an L-shaped support plate (12) which is limitedly slidably arranged on the upper side of the base plate (1) by two T-shaped rods (11), the base plate (1) is provided with a T-shaped slide groove (101) for mounting the two T-shaped rods (11), a hydraulic motor (13) is placed on the L-shaped support plate (12), and the hydraulic motor (13) has four mounting holes (131), characterized in that: The bottom plate (1) and the L-shaped support plate (12) are provided with an adjustment and positioning device (2); The adjustment and positioning device (2) comprises a side vertical plate (22) fixedly mounted on the upper side of the bottom plate (1); a side abutment plate (23) is fixedly provided on the side of the side vertical plate (22) facing the L-shaped support plate (12); a clamping plate (24) is fixedly provided on the side of the L-shaped support plate (12) facing the side vertical plate (22); an adjustment mechanism (3) is provided on the L-shaped support plate (12); and a locking unit (4) is provided on the side vertical plate (22) and the L-shaped support plate (12); The adjusting mechanism (3) comprises a T-shaped moving block (31), an adjusting cross bar (32), a bidirectional threaded rod (33), a transmission gear (34) and a driving assembly (5); the two T-shaped moving blocks (31) are symmetrically limited and slidably arranged on the L-shaped supporting plate (12); the L-shaped supporting plate (12) is provided with a limiting sliding groove (122) for the two T-shaped moving blocks (31) to be slidably installed; the two adjusting cross bars (32) are respectively fixedly installed on one side of the two T-shaped moving blocks (31); the bidirectional threaded rod (33) is threadedly penetrated through the two T-shaped moving blocks (31) and is rotatably arranged in the limiting sliding groove (122); the T-shaped moving block (31) is threadedly provided with an internal threaded hole (311) adapted to the bidirectional threaded rod (33); the transmission gear (34) is fixedly sleeved on the middle part of the bidirectional threaded rod (33); and the driving assembly (5) is arranged on the bottom plate (1) and the L-shaped supporting plate (12); The driving assembly (5) comprises a T-shaped lower support plate (51), a driving cylinder (52), a driving gear (53) and an adjusting member (6); the T-shaped lower support plate (51) is fixedly installed between two T-shaped rods (11); a rectangular sliding opening (102) for slidingly installing the T-shaped lower support plate (51) is provided through the bottom plate (1); the driving cylinder (52) is fixedly arranged in the rectangular sliding opening (102), and the telescopic end is fixedly connected to the T-shaped lower support plate (51); the driving gear (53) is rotatably installed in a limiting sliding groove (122) below the transmission gear (34) through a middle round rod (54), and meshes with the transmission gear (34); the adjusting member (6) is arranged on the bottom plate (1) below the driving gear (53); The adjusting member (6) comprises a U-shaped inner groove seat (61), a positioning pin (62), a driving rack (63) and a holding rod (64); the U-shaped inner groove seat (61) is fixedly mounted on a bottom plate (1) located below the driving gear (53); the positioning pin (62) is slidably inserted into the U-shaped inner groove seat (61); a double insertion hole (611) for inserting and installing the positioning pin (62) is provided through the U-shaped inner groove seat (61); the driving rack (63) is slidably arranged in the U-shaped inner groove seat (61) and intermittently meshed with the driving gear (53); a plurality of locking holes (631) matching the double insertion holes (611) are equidistantly provided on the driving rack (63); and the holding rod (64) is fixedly mounted on one end of the driving rack (63).

2. The automatic positioning device for testing a hydraulic motor with a four-hole square mounting surface according to claim 1, characterized in that: The locking unit (4) comprises a fixed locking plate (41), a movable locking plate (42), a linkage (7), a main abutment (8) and a matching member (9); the fixed locking plate (41) is fixedly arranged on the side vertical plate (22); the movable locking plate (42) is limitedly slidably arranged on the upper side of the L-shaped support plate (12) through two dovetail bars (43); a dovetail slide groove (123) for slidingly installing the two dovetail bars (43) is provided on the L-shaped support plate (12); the fixed locking plate (41) and the movable locking plate (42) are symmetrically penetrated with downward exploration holes (411) whose aperture is larger than the installation hole (131); the linkage (7) is arranged on the side vertical plate (22) and the L-shaped support plate (12); the main abutment (8) and the matching member (9) are respectively arranged on the fixed locking plate (41) and the movable locking plate (42).

3. The automatic positioning device for testing a hydraulic motor with a four-hole square mounting surface according to claim 2, characterized in that: The linkage device (7) comprises a side rack (71), a side support block (72), a column gear (73) and a linkage rack (74); the side rack (71) is symmetrically fixedly installed on both sides of the movable lock plate (42); the two side support blocks (72) are symmetrically fixedly clamped on both sides of the L-shaped support plate (12); the two column gears (73) are rotatably arranged on the side support blocks (72) and are respectively meshed with the side racks (71); the L-shaped support plate (12) is symmetrically provided with side grooves (124) for installing the column gears (73); the two linkage racks (74) are symmetrically fixedly arranged on the side of the side vertical plate (22) facing the L-shaped support plate (12) and are intermittently meshed with the column gears (73).

4. The automatic positioning device for testing a hydraulic motor with a four-hole square mounting surface according to claim 2, characterized in that: The main stopper (8) comprises a locking cylinder (81), a T-shaped end rod (82), a main conical column (83) and an inner groove end block (84); the locking cylinder (81) is fixedly mounted on a side of the side vertical plate (22) away from the L-shaped support plate (12) through a cylinder base (85); the T-shaped end rod (82) is fixedly mounted on the telescopic end of the locking cylinder (81); the two main conical columns (83) are symmetrically fixedly mounted on the T-shaped end rod (82) and extend downward into the lower exploration hole (411) of the fixed lock plate (41); and the two inner groove end blocks (84) are symmetrically fixedly mounted on both ends of the T-shaped end rod (82).

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