Power take-off output shaft centering and press fitting guide

Abstract

The present application relates to the technical field of power take-off output shaft, in particular to a power take-off output shaft centering and pressing device, comprising a mounting base, a pressing frame is arranged on the rear side of the mounting base, the mounting base comprises two outer frames, and a positioning table is fixedly connected between the rear sides of the inner sides of the two outer frames. The mounting base and the pressing frame are arranged, the centering position does not need to be repeatedly adjusted and corrected manually, the tedious operation of manual positioning and correction is saved, the experience requirement for the operator is reduced, the accumulated error caused by long-time manual operation is avoided, the centering error of each pressing operation can be stably controlled within the qualified range, and the probability of assembly failure is reduced. The self-adaptive positioning and clamping of the power take-off is realized through the clamping plate structure that can be synchronously expanded and contracted, and meanwhile, the arc-shaped clamping plate structure that can be synchronously tightened along with the pressing advancement at the grabbing part can flexibly adapt to the pressing positioning and centering operation of power take-off and output shafts of different sizes.

Description

Technical Field

[0001] This invention relates to the field of power take-off output shaft technology, and more specifically, to a power take-off output shaft centering and press-fitting guide device. Background Technology

[0002] The power take-off (PTO) output shaft refers to the transmission component in the PTO that outputs power from the engine or gearbox to the external working device. During the assembly of the PTO, the output shaft needs to be press-fitted into the housing. If the alignment accuracy between the output shaft axis and the press-fitting station is insufficient during the press-fitting process, it can easily lead to wear on the output shaft surface, excessive assembly clearance, or even damage to the output shaft or housing, affecting the assembly quality and subsequent service life of the PTO.

[0003] According to patent document CN107775320A, an output shaft press-fit fixture is disclosed, comprising a mounting platform, an output shaft disposed on the mounting platform, a first mounting assembly, a first drive assembly, a second mounting assembly, and a second drive assembly. The first mounting assembly includes a first mounting plate, and the output shaft has a receiving groove extending along the Z-axis direction. The first drive assembly includes a first drive cylinder that drives and connects to the first mounting plate. The second mounting assembly includes a second mounting plate, a mounting shaft that moves along the Z-axis direction and extends into the receiving cavity, and a suction mechanism. A T-block, a washer, and a retaining spring are fixed to the bottom of the mounting shaft by the suction mechanism. The suction mechanism includes a first magnetic element and a second magnetic element. The second drive assembly includes a second drive cylinder that drives and connects to the second mounting plate. This invention has at least the following advantages: high press-fit efficiency, good positioning effect, better assurance of the horizontality of the T-block, and optimized structure.

[0004] The press-fitting process requires a dedicated guiding device to ensure the alignment accuracy of the output shaft. However, most existing press-fitting guiding devices rely on manual positioning and correction to ensure alignment accuracy. This is not only cumbersome to operate and requires a high level of experience from the operators, but it is also difficult to guarantee that the alignment error of each press-fitting operation is consistently controlled within the acceptable range. After long-term operation, human error will gradually increase, and assembly defects are still likely to occur. Some automated alignment guiding devices have complex structures and high costs. Moreover, they are mostly customized structures adapted to specific models of output shafts, which cannot flexibly adapt to the press-fitting of power take-off output shafts of different sizes and specifications, resulting in poor versatility. Summary of the Invention

[0005] To overcome the aforementioned shortcomings of the prior art, this invention provides a power take-off output shaft centering and pressing guide device. The technical problem to be solved by this invention is that: ensuring centering accuracy through manual positioning and correction is not only cumbersome and requires a high level of experience from the operators, but it is also difficult to guarantee that the centering error of each pressing is consistently controlled within the acceptable range. After long-term operation, the human error will gradually increase, and assembly defects are still likely to occur. Some automated centering guide devices have complex structures, high costs, and are mostly customized structures adapted to specific models of output shafts, which cannot flexibly adapt to the pressing operations of power take-off output shafts of different sizes and specifications, resulting in poor versatility.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A power take-off output shaft centering press-fit guide device includes a mounting base, and a press-fit frame is provided on the rear side of the mounting base; The mounting base includes two outer frames, and a positioning platform is fixedly connected between the rear inner sides of the two outer frames; The pressing frame includes an inverted L-shaped horizontal push plate. The bottom of the front sides of the left and right sides of the inverted L-shaped horizontal push plate are fixedly connected with inverted L-shaped horizontal push plate slide rods. Rotating rods are rotatably connected to the front sides of the bottom of the inverted L-shaped horizontal push plate. The rear sides of the two rotating rods are hinged to side hinge blocks.

[0007] As a further embodiment of the present invention: both of the outer frames include side plates, and upright plates are fixedly connected to the front and rear sides of the bottom of the two side plates. A base plate is fixedly connected between the bottom of the inner sides of the two sets of upright plates. Upright connecting blocks are fixedly connected to multiple locations on the top of the two base plates. Guide holes are provided on the front sides of the outer sides of the two side plates. Connecting rods are fixedly connected to the front sides of the top of the two side plates. Side guide plates are fixedly connected to the top of the two connecting rods. Two inverted L-shaped uprights are fixedly connected to the rear sides of the inner sides of the two side plates. Columnar guide crossbars are fixedly connected to the top of the inner sides of the two sets of inverted L-shaped uprights.

[0008] As a further embodiment of the present invention: the positioning platform includes a guide base plate, and multiple points on the left and right sides of the bottom of the guide base plate are respectively fixedly connected to the top of two sets of left and right vertical connecting blocks. A guide groove is provided in the middle of the guide base plate. Bottom connecting plates are fixedly connected to both sides of the rear side of the bottom of the guide base plate. An electric push rod is fixedly connected between the bottom middle of the two bottom connecting plates. An inverted convex push block is fixedly connected to the front end of the electric push rod. The top of the outer wall of the inverted convex push block is slidably connected to the inner wall of the guide groove provided in the guide base plate.

[0009] As a further embodiment of the present invention: hinge blocks are fixedly connected to all four sides of the top rear side of the guide base plate; a concave bottom support plate is fixedly connected to the top rear side of the guide base plate; horizontal guide plates are fixedly connected to the front and rear sides of the top of the concave bottom support plate; rectangular slide plates are slidably connected to the front and rear sides of the top of the concave bottom support plate; inclined grooves are provided on both sides of the top of the two rectangular slide plates; horizontal connecting rods are fixedly connected to the left and right sides between the tops of the two rectangular slide plates; the middle of the front side of the front rectangular slide plate is fixedly connected to the rear side of the inverted convex push block; a top support plate is fixedly connected to the top of the concave bottom support plate; guide rails are fixedly connected to the left and right sides of the top of the top of the top support plate; horizontal support plates are fixedly connected to the front and rear sides between the bottoms of the two guide rails; placement plate connecting blocks are fixedly connected to the front and rear sides of the outer walls of the two guide rails; and a placement plate is fixedly connected between the tops of the left and right sets of placement plate connecting blocks.

[0010] As a further embodiment of the present invention: both sides of the inner walls of the two horizontal guide plates are slidably connected with expansion and contraction push rods; both sides of the tops of the two sets of expansion and contraction push rods are fixedly connected with abutment blocks; the outer walls of the front and rear sets of abutment blocks are slidably connected to the inner walls of the inclined abutment grooves on both sides of the two rectangular slide plates; both sides of the expansion and contraction push rods are hingedly connected with L-shaped rotating rods; the bottom of the outer walls of the two sets of L-shaped rotating rods are hingedly connected to the inner walls of the tops of the two sets of hinge blocks; both sides of the tops of the inner sides of the front and rear sets of L-shaped rotating rods are hingedly connected with clamping plates; both sides of the clamping plates are fixedly connected with clamping plate pull plates.

[0011] As a further embodiment of the present invention: the inner walls of the front and rear sides of the top of the two clamping plates are respectively slidably connected to the outer walls of the left and right sets of columnar guide crossbars, and the outer walls of the two clamping plate pull plates are respectively slidably connected to the inner sides of the left and right sets of inverted L-shaped uprights.

[0012] As a further embodiment of the present invention: the outer sides of the two inverted L-shaped horizontal push plate slide rods are respectively slidably connected to the inner sides of the two side guide plates; the outer sides of the two side hinge blocks are each hinged to an L-shaped side expansion plate; the front sides of the inner sides of the two L-shaped side expansion plates are each fixedly connected to a columnar slide rod; the outer walls of the two columnar slide rods are respectively slidably connected to the inner walls of the guide holes opened in the two side plates; and the middle front sides of the two L-shaped side expansion plates are respectively fixedly connected to the outer sides of the rear sides of the two clamping plate pull plates.

[0013] As a further embodiment of the present invention: a top push-pull horizontal plate is fixedly connected to the rear side of the top of the inverted L-shaped horizontal push plate, and upright L-shaped side slide plates are fixedly connected to the left and right sides of the bottom of the top push-pull horizontal plate. The bottom of the inner side of the two upright L-shaped side slide plates is slidably connected to the outer side of the two side plates respectively. A gripping component connecting frame is fixedly connected to the rear side of the bottom of the inverted L-shaped horizontal push plate, and a gripping component is fixedly connected to the bottom of the front side of the gripping component connecting frame.

[0014] As a further embodiment of the present invention: the gripper includes a connecting column, a support column is fixedly connected to the front side of the connecting column, a plurality of front connecting rods are fixedly connected to the outer wall of the support column in a ring array, an outer ring is fixedly connected to the outer sides of the plurality of front connecting rods, a plurality of guide rail side plates are fixedly connected to the front ring in a ring array, a plurality of hinged disc connecting rods are fixedly connected to the middle of the front side of the support column, a hinged disc is fixedly connected to the front sides of the plurality of hinged disc connecting rods, a plurality of through slots are opened in a ring array on the front side of the hinged disc, a plurality of triangular rotating blocks are rotatably connected to the outer side of the plurality of triangular rotating blocks, a retractable rod is fixedly connected to the outer side of each of the plurality of retractable rods, a Y-shaped rotating rod is hingedly connected to the rear side of each of the plurality of Y-shaped rotating rods, the front sides of the plurality of Y-shaped rotating rods respectively pass through the interior of the corresponding through slots, the middle part of the outer wall of the plurality of Y-shaped rotating rods is respectively hinged to the inner wall of the plurality of through slots opened in the hinged disc, and a hinged shaft block is hingedly connected to the front sides of the plurality of Y-shaped rotating rods.

[0015] As a further embodiment of the present invention: an L-shaped retracting rod is fixedly connected to the front side of the outer side of each of the multiple retracting rods, the outer walls of the multiple L-shaped retracting rods are slidably connected to the front side of the multiple guide rail side plates, and an arc-shaped clamping plate is fixedly connected to the front side of the inner side of each of the multiple L-shaped retracting rods.

[0016] The beneficial effects of this invention are as follows: 1. This invention, by setting up an installation base and a pressing frame, realizes the automatic alignment and pressing of the power take-off and the output shaft. Through the linkage synchronous clamping and positioning structure, the output shaft is pressed and fed simultaneously with the positioning and clamping of the power take-off. There is no need for repeated manual adjustment and correction of the alignment position, which eliminates the tedious operation of manual positioning and correction, reduces the experience requirements of the operator, avoids the cumulative error caused by long-term manual operation, and ensures that the alignment error of each pressing can be stably controlled within the qualified range, reducing the probability of assembly defects.

[0017] 2. This invention achieves adaptive positioning and clamping of the power take-off through a synchronously expandable and contractible clamping structure. At the same time, the gripping part has an arc-shaped clamping structure that can tighten synchronously with the press-fitting process. This invention can flexibly adapt to the press-fitting positioning and alignment of power take-offs and output shafts of different sizes and specifications. There is no need to customize a special alignment structure for specific sizes. Compared with traditional customized automated alignment devices, this invention greatly improves the structural versatility and has a wider range of applications.

[0018] 3. The overall structure of this invention is simple. It can complete multi-step centering and pressing operations with only a single power source. Compared with the traditional automated centering and guiding device with a complex structure, it greatly reduces the production and maintenance costs of the device, while ensuring centering accuracy and pressing stability. It effectively solves many problems existing in the pressing and centering operation of the power take-off output shaft. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional separation structure of the main body of the present invention; Figure 3 This is a three-dimensional structural diagram of the mounting base of the present invention; Figure 4 This is a schematic diagram of the three-dimensional separation structure of the mounting base of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the external frame of the present invention; Figure 6 This is a three-dimensional structural diagram of the positioning platform of the present invention; Figure 7 This is a schematic diagram of the three-dimensional separation structure of the positioning platform of the present invention; Figure 8 This is a three-dimensional structural diagram of the press-fitting frame of the present invention; Figure 9 This is a three-dimensional structural diagram of the gripper of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Mounting base; 11. Outer frame; 111. Side plate; 112. Vertical plate; 113. Base plate; 114. Connecting rod; 115. Side guide plate; 116. Guide hole; 117. Vertical connecting block; 118. Inverted L-shaped vertical pole; 119. Columnar guide crossbar; 12. Positioning platform; 121. Guide base plate; 122. Guide groove; 123. Bottom connecting plate; 124. Electric push rod; 125. Inverted convex push block; 127. Hinge block; 128. Concave bottom support plate; 129. Horizontal guide plate; 1210. Rectangular sliding plate; 1211. Angled abutment groove; 1212. Horizontal connecting rod; 1213. Top support plate; 1214. Guide rail; 1215. Horizontal support plate; 1216. Placement plate; 1217. Placement plate connecting block; 1218. L-shaped rotating rod; 1219. Retractable push rod; 2110, Abutment block; 12111, Clamping plate; 12112, Clamping plate pull plate; 2, Pressing frame; 21, Inverted L-shaped horizontal push plate; 22, Rotating rod; 23, Inverted L-shaped horizontal push plate slide rod; 24, Side hinge block; 26, L-shaped side expansion plate; 27, Columnar slide rod; 29, Top push-pull horizontal plate; 210, Vertical L-shaped side slide plate; 211, Gripping component connecting frame; 212, Gripping component; 2121, Connector Column; 2122, Support column; 2123, Front connecting rod; 2124, Outer ring; 2125, Guide rail side plate; 2126, Hinge plate connecting rod; 2127, Hinge plate; 2129, Triangular rotating block; 21210, Through slot; 21211, Y-shaped rotating rod; 21212, Retracting rod; 21213, Hinge shaft block; 21214, L-shaped retracting rod; 21215, Arc-shaped clamping plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1-4 as well as Figure 8 As shown, the present invention provides a power take-off output shaft centering press-fit guide device, including a mounting base 1, and a press-fit frame 2 is provided on the rear side of the mounting base 1; the mounting base 1 includes two outer frames 11, and a positioning platform 12 is fixedly connected between the rear sides of the inner sides of the two outer frames 11; the press-fit frame 2 includes an inverted L-shaped horizontal push plate 21, and inverted L-shaped horizontal push plate slide rods 23 are fixedly connected to the bottom of the front sides of the left and right sides of the inverted L-shaped horizontal push plate 21. Rotating rods 22 are rotatably connected to the front sides of the bottom of the inverted L-shaped horizontal push plate 21, and side hinge blocks 24 are hinged to the rear sides of the two rotating rods 22.

[0023] like Figure 5As shown, both outer frames 11 include side plates 111. Upright plates 112 are fixedly connected to the front and rear sides of the bottom of the two side plates 111. A base plate 113 is fixedly connected between the bottom of the inner sides of the two sets of upright plates 112. Upright connecting blocks 117 are fixedly connected to multiple points on the top of the two base plates 113. Guide holes 116 are opened on the front side of the outer side of the two side plates 111. Connecting rods 114 are fixedly connected to the front side of the top of the two side plates 111. Side guide plates 115 are fixedly connected to the top of the two connecting rods 114. Two inverted L-shaped uprights 118 are fixedly connected to the rear side of the inner side of the two side plates 111. Columnar guide crossbars 119 are fixedly connected to the top of the inner side of the two sets of inverted L-shaped uprights 118.

[0024] like Figure 6-7 As shown, the positioning platform 12 includes a guide base plate 121. Multiple parts on the left and right sides of the bottom of the guide base plate 121 are fixedly connected to the top of the left and right sets of vertical connecting blocks 117. A guide groove 122 is opened in the middle of the guide base plate 121. Bottom connecting plates 123 are fixedly connected to both sides of the rear side of the bottom of the guide base plate 121. An electric push rod 124 is fixedly connected between the bottom middle of the two bottom connecting plates 123. An inverted convex push block 125 is fixedly connected to the front end of the electric push rod 124. The top of the outer wall of the inverted convex push block 125 is slidably connected to the inner wall of the guide groove 122 opened in the guide base plate 121. Hinges 127 are fixedly connected to all four sides of the top rear side of the guide base plate 121. A concave bottom support plate 128 is fixedly connected to the top rear side of the guide base plate 121. Horizontal guide plates 129 are fixedly connected to the front and rear sides of the top of the concave bottom support plate 128. Rectangular slide plates 1210 are slidably connected to the front and rear sides of the top of the concave bottom support plate 128. Inclined grooves 1211 are provided on both sides of the top of each rectangular slide plate 1210. The two inclined grooves 1211 on each rectangular slide plate 1210 are symmetrically arranged. Horizontal guide plates 129 are fixedly connected to the left and right sides between the tops of the two rectangular slide plates 1210. The connecting rod 1212, the middle of the front side of the rectangular sliding plate 1210 is fixedly connected to the rear side of the inverted convex push block 125, the top of the concave bottom support plate 128 is fixedly connected to the top support plate 1213, the top left and right sides of the top of the top support plate 1213 are fixedly connected to the guide rails 1214, the front and rear sides between the bottom of the two guide rails 1214 are fixedly connected to the horizontal support plate 1215, the front and rear sides of the outer wall of the two guide rails 1214 are fixedly connected to the placement plate connecting block 1217, and the top of the two sets of placement plate connecting blocks 1217 are fixedly connected to a placement plate 1216. Both sides of the inner walls of the two horizontal guide plates 129 are slidably connected to expansion and contraction push rods 1219. Abutment blocks 12110 are fixedly connected to the sides of the tops of the two sets of expansion and contraction push rods 1219 that are close to each other. The outer walls of the front and rear sets of abutment blocks 12110 are slidably connected to the inner walls of the inclined abutment grooves 1211 on both sides of the two rectangular slide plates 1210. L-shaped rotating rods 1218 are hinged to the outer sides of the two sets of expansion and contraction push rods 1219. The bottom part of the outer wall of the two sets of L-shaped rotating rods 1218... The inner walls of the top of the left and right sets of hinge blocks 127 are hinged together. The top of the inner side of the front and rear sets of L-shaped rotating rods 1218 are hinged together with clamping plates 12111. The outer sides of the two clamping plates 12111 are fixedly connected with clamping plate pull plates 12112. The inner walls of the front and rear sides of the top of the two clamping plates 12111 are slidably connected to the outer walls of the left and right sets of columnar guide crossbars 119. The outer walls of the two clamping plate pull plates 12112 are slidably connected to the inner sides of the left and right sets of inverted L-shaped uprights 118.

[0025] like Figure 8 As shown, the outer sides of the two inverted L-shaped horizontal push plate slide rods 23 are slidably connected to the inner sides of the two side guide plates 115, and the outer sides of the two side hinge blocks 24 are each hinged to an L-shaped side expansion plate 26. A columnar slide rod 27 is fixedly connected to the front side of the inner side of each of the two L-shaped side expansion plates 26. The outer walls of the two columnar slide rods 27 are slidably connected to the inner walls of the guide holes 116 opened in the two side plates 111, and the middle front sections of the two L-shaped side expansion plates 26 are respectively fixedly connected to two clamping plates. The outer side of the rear side of the pull plate 12112; the rear side of the top of the inverted L-shaped horizontal push plate 21 is fixedly connected to the push-pull horizontal plate 29, and the left and right sides of the bottom of the push-pull horizontal plate 29 are fixedly connected to the vertical L-shaped side slide plates 210. The bottom of the inner side of the two vertical L-shaped side slide plates 210 are respectively slidably connected to the outer side of the two side plates 111. The rear side of the bottom of the inverted L-shaped horizontal push plate 21 is fixedly connected to the gripper connecting frame 211, and the bottom of the front side of the gripper connecting frame 211 is fixedly connected to the gripper 212.

[0026] like Figure 9-10As shown, the gripper 212 includes a connecting post 2121. A support post 2122 is fixedly connected to the front side of the connecting post 2121. Multiple front connecting rods 2123 are fixedly connected to the outer wall of the support post 2122 in a ring array. An outer ring 2124 is fixedly connected to the outer sides of the multiple front connecting rods 2123. Multiple guide rail side plates 2125 are fixedly connected to the front ring 2124 in a ring array. Multiple hinge plate connecting rods 2126 are fixedly connected to the middle of the front side of the support post 2122. A hinge plate 2127 is fixedly connected to the front sides of the multiple hinge plate connecting rods 2126 in a ring array. The front side of the hinge plate 2127 has a ring array. There are multiple through slots 21210. The outer wall of the hinge plate 2127 is rotatably connected to multiple triangular rotating blocks 2129 in an annular array. The outer sides of the multiple triangular rotating blocks 2129 are fixedly connected to retracting rods 21212. The rear sides of the multiple retracting rods 21212 are hinged to Y-shaped rotating rods 21211. The front sides of the multiple Y-shaped rotating rods 21211 pass through the interior of the corresponding through slots 21210. The middle part of the outer wall of the multiple Y-shaped rotating rods 21211 is hinged to the inner wall of the multiple through slots 21210 opened in the hinge plate 2127. The front sides of the multiple Y-shaped rotating rods 21211 are hinged together to a hinge shaft block 21213. L-shaped retracting rods 21214 are fixedly connected to the front side of the outer side of the multiple retracting rods 21212. The outer walls of the multiple L-shaped retracting rods 21214 are slidably connected to the front side of the multiple guide rail side plates 2125. Arc-shaped clamping plates 21215 are fixedly connected to the front side of the inner side of the multiple L-shaped retracting rods 21214.

[0027] Working principle of the invention: When the output shaft of the power take-off needs to be installed, the power take-off is first placed on the top of the placement plate 1216; then the electric push rod 124 is activated to push the inverted convex push block 125 to move forward. The inverted convex push block 125 drives the rectangular slide plate 1210 on the front side to slide forward. The rectangular slide plate 1210 on the front side pushes the abutment block 12110 to move inward through the inclined abutment groove 1211. The two sets of abutment blocks 12110 respectively drive the corresponding expansion push rod 1219 to move inward along the horizontal guide plate 129. The expansion push rod 1219 drives the L-shaped rotating rod 1218 to rotate around the hinge block 127. The L-shaped rotating rod 1218 drives the corresponding clamping plate 12111 to move inward synchronously along the columnar guide bar 119. The two clamping plates 12111 complete the positioning and clamping of the power take-off placed on the placement plate 1216 from the left and right sides. Simultaneously, when the clamping plate 12111 moves, it will drive the clamping plate pull plate 12112 to move inward in sync. The clamping plate pull plate 12112 pulls the L-shaped side expansion plate 26, causing the columnar slide rod 27 to slide inward along the guide hole 116 of the side plate 111. The L-shaped side expansion plate 26 pulls the side hinge block 24 to move inward. The side hinge block 24 pushes the inverted L-shaped horizontal push plate 21 to slide forward along the side guide plate 115 through the rotating rod 22, thereby driving the gripper 212 to move forward as a whole to the output shaft placement position. When the output shaft fixed at the front of the hinge shaft block 21213 is connected to the power take-off, as the inverted L-shaped horizontal push plate 21 continues to move the gripper 212 forward, it pushes the output shaft surrounded by multiple arc-shaped clamping plates 21215 to complete the press-fit operation. The connecting block 21213 is pushed backward by the abutment, which causes the multiple Y-shaped rotating rods 21211 on the outer side to rotate and push the triangular rotating block 2129 to rotate outward around the hinge plate 2127. The triangular rotating block 2129 drives the retracting rod 21212 to retract inward. The retracting rod 21212 drives the L-shaped retracting rod 21214 to slide inward along the guide rail side plate 2125. The L-shaped retracting rod 21214 drives the arc-shaped clamping plate 21215 to retract inward synchronously, which further tightens the clamping of the outer wall of the power take-off where the output shaft needs to be installed. Moreover, during the press-fitting process, the position of the power take-off is continuously kept fixed and does not shift, avoiding the displacement of the power take-off due to the reaction force when the output shaft is pressed and pushed, and ensuring the alignment accuracy between the output shaft and the power take-off mounting hole.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A power take-off output shaft centering press-fit guide device, comprising a mounting base (1), characterized in that: A press-fit bracket (2) is provided on the rear side of the mounting base (1); The mounting base (1) includes two outer frames (11), and a positioning platform (12) is fixedly connected between the rear sides of the inner sides of the two outer frames (11). The pressing frame (2) includes an inverted L-shaped horizontal push plate (21). The bottom of the left and right sides of the inverted L-shaped horizontal push plate (21) is fixedly connected with an inverted L-shaped horizontal push plate slide rod (23). The bottom front sides of the inverted L-shaped horizontal push plate (21) are rotatably connected with rotating rods (22). The rear sides of the two rotating rods (22) are hinged with side hinge blocks (24).

2. The power take-off output shaft centering and pressing guide device according to claim 1, characterized in that: Both of the outer frames (11) include side plates (111). The front and rear sides of the bottom of the two side plates (111) are fixedly connected to upright plates (112). The bottom of the inner sides of the two sets of upright plates (112) are fixedly connected to a base plate (113). The top of the two base plates (113) is fixedly connected to multiple vertical connecting blocks (117). The front side of the outer side of the two side plates (111) is provided with guide holes (116). The front side of the top of the two side plates (111) is fixedly connected to a connecting rod (114). The top of the two connecting rods (114) is fixedly connected to a side guide plate (115). The rear side of the inner side of the two side plates (111) is fixedly connected to two inverted L-shaped uprights (118). The top of the inner side of the two sets of inverted L-shaped uprights (118) is fixedly connected to a columnar guide crossbar (119).

3. The power take-off output shaft centering and pressing guide device according to claim 1, characterized in that: The positioning platform (12) includes a guide base plate (121). Multiple parts on the left and right sides of the bottom of the guide base plate (121) are fixedly connected to the top of the left and right sets of vertical connecting blocks (117). A guide groove (122) is provided in the middle of the guide base plate (121). Bottom connecting plates (123) are fixedly connected to both sides of the rear side of the bottom of the guide base plate (121). An electric push rod (124) is fixedly connected between the bottom middle of the two bottom connecting plates (123). An inverted convex push block (125) is fixedly connected to the front end of the electric push rod (124). The top of the outer wall of the inverted convex push block (125) is slidably connected to the inner wall of the guide groove (122) opened in the guide base plate (121).

4. The power take-off output shaft centering press-fit guide device according to claim 3, characterized in that: The guide base plate (121) has hinge blocks (127) fixedly connected to all four sides of the top rear side. A concave bottom support plate (128) is fixedly connected to the top rear side of the guide base plate (121). A horizontal guide plate (129) is fixedly connected to the front and rear sides of the top of the concave bottom support plate (128). A rectangular slide plate (1210) is slidably connected to the front and rear sides of the top of the concave bottom support plate (128). An inclined abutment groove (1211) is opened on both sides of the top of the two rectangular slide plates (1210). A horizontal connecting rod (1212) is fixedly connected to the left and right sides between the tops of the two rectangular slide plates (1210). The front side of the... The middle of the front side of the rectangular slide plate (1210) is fixedly connected to the rear side of the inverted convex push block (125). The top of the concave bottom support plate (128) is fixedly connected to the top support plate (1213). The top left and right sides of the top of the top support plate (1213) are fixedly connected to the guide rails (1214). The front and rear sides between the bottom of the two guide rails (1214) are fixedly connected to the horizontal support plate (1215). The front and rear sides of the outer wall of the two guide rails (1214) are fixedly connected to the placement plate connecting block (1217). The top of the two sets of placement plate connecting blocks (1217) are fixedly connected to a placement plate (1216).

5. The power take-off output shaft centering press-fit guide device according to claim 4, characterized in that: Both sides of the inner walls of the two horizontal guide plates (129) are slidably connected with expansion and contraction push rods (1219). The tops of the two sets of expansion and contraction push rods (1219) are fixedly connected with abutment blocks (12110) on the side close to each other. The outer walls of the two sets of abutment blocks (12110) are slidably connected to the inner walls of the two oblique abutment grooves (1211) opened on both sides of the two rectangular slide plates (1210). The outer sides of the two sets of expansion and contraction push rods (1219) are hingedly connected with L-shaped rotating rods (1218). The bottom of the outer walls of the two sets of L-shaped rotating rods (1218) are hingedly connected to the inner walls of the tops of the two sets of hinge blocks (127). The tops of the inner sides of the two sets of L-shaped rotating rods (1218) are hingedly connected with clamping plates (12111). The outer sides of the two clamping plates (12111) are fixedly connected with clamping plate pull plates (12112).

6. The power take-off output shaft centering press-fit guide device according to claim 5, characterized in that: The inner walls of the top front and rear sides of the two clamping plates (12111) are slidably connected to the outer walls of the two sets of columnar guide crossbars (119) respectively, and the outer walls of the two clamping plate pull plates (12112) are slidably connected to the inner sides of the two sets of inverted L-shaped uprights (118) respectively.

7. The power take-off output shaft centering press-fit guide device according to claim 5, characterized in that: The outer sides of the two inverted L-shaped horizontal push plate slide rods (23) are slidably connected to the inner sides of the two side guide plates (115). The outer sides of the two side hinge blocks (24) are hinged to L-shaped side expansion plates (26). The front sides of the inner sides of the two L-shaped side expansion plates (26) are fixedly connected to columnar slide rods (27). The outer walls of the two columnar slide rods (27) are slidably connected to the inner walls of the guide holes (116) opened in the two side plates (111). The middle front sides of the two L-shaped side expansion plates (26) are fixedly connected to the outer sides of the rear sides of the two clamping plates (12112).

8. The power take-off output shaft centering and pressing guide device according to claim 7, characterized in that: The top rear side of the inverted L-shaped horizontal push plate (21) is fixedly connected to a top push-pull horizontal plate (29). The bottom left and right sides of the top push-pull horizontal plate (29) are fixedly connected to vertical L-shaped side slide plates (210). The bottom of the inner side of the two vertical L-shaped side slide plates (210) are slidably connected to the outer side of the two side plates (111). The bottom rear side of the inverted L-shaped horizontal push plate (21) is fixedly connected to a gripper connecting frame (211). The bottom front side of the gripper connecting frame (211) is fixedly connected to a gripper (212).

9. The power take-off output shaft centering press-fit guide device according to claim 8, characterized in that: The gripper (212) includes a connecting post (2121), a support post (2122) is fixedly connected to the front side of the connecting post (2121), a plurality of front connecting rods (2123) are fixedly connected to the outer wall of the support post (2122) in a ring array, an outer ring (2124) is fixedly connected to the outer sides of the plurality of front connecting rods (2123), a plurality of guide rail side plates (2125) are fixedly connected to the front ring (2124) in a ring array, a plurality of hinge plate connecting rods (2126) are fixedly connected to the middle of the front side of the support post (2122), a hinge plate (2127) is fixedly connected to the front sides of the plurality of hinge plate connecting rods (2126), and a hinge plate (2127) is opened in a ring array on the front side of the hinge plate (2127). There are multiple through slots (21210). The outer wall of the hinge plate (2127) is rotatably connected to multiple triangular rotating blocks (2129) in an annular array. The outer sides of each of the multiple triangular rotating blocks (2129) are fixedly connected to retracting rods (21212). The rear sides of each of the multiple retracting rods (21212) are hinged to Y-shaped rotating rods (21211). The front sides of each of the multiple Y-shaped rotating rods (21211) pass through the interior of the corresponding through slot (21210). The middle part of the outer wall of each of the multiple Y-shaped rotating rods (21211) is hinged to the inner wall of the multiple through slots (21210) opened in the hinge plate (2127). The front sides of the multiple Y-shaped rotating rods (21211) are all hinged to a hinge shaft block (21213).

10. The power take-off output shaft centering press-fit guide device according to claim 9, characterized in that: L-shaped retractable rods (21214) are fixedly connected to the front side of the outer side of the multiple retractable rods (21212). The outer walls of the multiple L-shaped retractable rods (21214) are slidably connected to the front side of the multiple guide rail side plates (2125). Arc-shaped clamps (21215) are fixedly connected to the front side of the inner side of the multiple L-shaped retractable rods (21214).

Images