Loader locking type hydraulic torque converter

Abstract

The utility model relates to the field of hydraulic torque converters, in particular to a loader locking type hydraulic torque converter which comprises a pump wheel and a front shell, a guide wheel, a turbine and a clutch assembly are fixedly installed between the pump wheel and the front shell, the pump wheel and the turbine are oppositely arranged, the guide wheel is fixedly installed between the pump wheel and the turbine, and the clutch assembly is fixedly installed between the pump wheel and the turbine. The clutch assembly is installed and fixed between the turbine and the front shell, and the guide wheel comprises a bearing seat. According to the utility model, the plurality of square rods are annularly fixed on the outer side of the inner ring block at equal angles, the blades are inserted into the square rods through the rectangular through holes in the outer ring block, and then the blades are detachably fixed between the inner ring block and the outer ring block through the fixing pieces; when the blade is damaged, the fixing piece fixed at the position of the blade can be detached to take out the blade, then a new blade is installed, the situation that the intact blade and the damaged blade are discarded together is omitted, targeted maintenance and replacement of the damaged blade are achieved, and maintenance cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic torque converters, in particular to a locking hydraulic torque converter for a loader. Background Art

[0002] The locked-type hydraulic torque converter of the loader is a special transmission device, which realizes the transmission of power through the mixed transmission mode of liquid and mechanics. The locked-type hydraulic torque converter mainly includes a pump wheel and a front housing. A guide wheel, a turbine and a clutch assembly are fixed between the pump wheel and the front housing. The guide wheel is installed and arranged between the pump wheel and the turbine. When working, the pump wheel rotates to rotate the oil to the turbine, and the turbine rotates back to the pump wheel. The pump wheel and the turbine rotate in opposite directions. The guide wheel changes the direction of the oil from the turbine to the pump wheel, so that the oil rotates in the same direction, thereby forming an oil circuit cycle. The turbine outputs power to the drive shaft of the loader to rotate the drive shaft;

[0003] The blades of the guide wheel in the torque converter are the main working part of the guide wheel. If the blades are damaged by impact, wear or deformation, for example, the working fluid contains impurities such as metal particles, these impurities may cause wear on the guide wheel blades, causing the blades to become thinner or have gaps, which in turn may easily cause the torque converter to work at low speeds and cause vehicle shaking. During maintenance, in order to reduce costs, the entire torque converter will not be replaced directly. Generally, a lathe will be used to cut the outer casing and front casing of the torque converter's pump wheel, and then the guide wheel will be replaced. The blades on the traditional guide wheel are welded and fixed to the guide wheel. If a certain position on the guide wheel is damaged, the entire guide wheel will be replaced, and the remaining intact blades will be discarded along with the damaged guide wheel, resulting in waste of resources and increased maintenance costs. Utility Model Content

[0004] The utility model aims to provide a locking hydraulic torque converter for a loader to solve the problems raised in the above-mentioned background technology.

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

[0006] A loader locked torque converter comprises a pump wheel and a front housing, a guide wheel, a turbine and a clutch assembly are fixedly installed between the pump wheel and the front housing, the pump wheel and the turbine are arranged opposite to each other, the guide wheel is installed and fixed at a position between the pump wheel and the turbine, and the clutch assembly is installed and fixed between the turbine and the front housing, the guide wheel comprises a bearing seat, an inner ring block is fixed on the outer side of the bearing seat, a plurality of groups of support assemblies are fixed at equal angles in an annular shape on the outer side of the inner ring block, blades are detachably plugged and fixed on the outer side of the support assembly, the support assembly comprises two square rods both fixedly connected to the inner ring block, two square holes are provided through the inside of the blades, the square rods are movably plugged into the square holes at corresponding positions, an outer side of a plurality of the blades is sleeved and fixed with an outer ring block, one end of the square rod passing through the outer ring block is detachably fixed with a fixing piece, and two symmetrically distributed semicircular sealing plates are detachably fixed on the outer side of the outer ring block.

[0007] Furthermore, the fixing member comprises a circular block, a stud is fixed on the inner side of the circular block, the stud is screwed and connected with a square rod at a corresponding position, and a cross groove is opened on the outer side of the circular block.

[0008] Furthermore, the outer side of the outer ring block is provided with a plurality of rectangular through holes in an annular shape and at equal angles, and one end of the blade facing away from the inner ring block passes through the rectangular through hole.

[0009] Furthermore, two circular grooves are provided on the outer side of the rectangular through hole, and the circular blocks are arranged inside the circular grooves at corresponding positions.

[0010] Furthermore, an annular groove for facilitating installation of a semicircular sealing plate is provided on the outer side of the outer ring block, and the ends of the two semicircular sealing plates can be detachably fixed by welding.

[0011] Furthermore, a notch 1 and a notch 2 are respectively provided on the inner side of the bottom and the inner side of the top of the front shell, and both the notch 1 and the notch 2 are arc-shaped.

[0012] Furthermore, a rear shell is fixed on the outer side of the pump wheel, and a positioning block 1 and a positioning block 2 are respectively fixed on the inner side of the bottom and the inner side of the top of the rear shell, and both the positioning block 1 and the positioning block 2 are arc-shaped, and the positioning block 1 is movably connected to the notch 1, and the positioning block 2 is movably connected to the notch 2.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] A plurality of square rods are fixed at equal angles in a circular shape on the outer side of the inner ring block, and the blades are plugged into the square rods through the rectangular through holes on the outer ring block. Then, the studs on the fixing parts are screwed between the square rods, the blades and the outer ring block, so that the blades are detachably fixed in the position between the inner ring block and the outer ring block. When a blade at a certain position is damaged, the fixing part fixed at the blade position can be removed, and then the blade can be taken out and a new blade can be installed, eliminating the need to discard intact blades together with damaged blades, thereby achieving targeted repair and replacement of damaged blades and saving repair costs.

[0015] By fixing positioning block 1 and positioning block 2 on the rear housing of the pump wheel, and the arc lengths of positioning block 1 and positioning block 2 are different, and notches 1 and 2 are opened on the rear housing, when installing the front housing and the rear housing that have been cut and combined, positioning block 1 can be pre-connected to the inside of notch 1, and positioning block 2 can be pre-connected to the inside of notch 2, so that the front housing and the rear housing on the torque converter are always in the initial docking position before and after cutting, effectively preventing the front housing and the rear housing from being misaligned during welding after maintenance, affecting the dynamic balance of the torque converter rotation, and facilitating the precise installation of the torque converter. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the utility model's split three-dimensional structure;

[0018] Figure 3 It is a schematic diagram of the front housing structure in the utility model;

[0019] Figure 4 This is a schematic diagram of the guide wheel structure in the utility model Figure 1 ;

[0020] Figure 5 This is a schematic diagram of the guide wheel structure in the utility model Figure 2 ;

[0021] Figure 6 It is a schematic diagram of the structure of the outer ring block in the utility model;

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the inner ring block, square rod, blades and fixing parts in the utility model.

[0023] In the figure: 100, pump wheel; 110, positioning block one; 120, positioning block two; 200, front housing; 210, notch one; 220, notch two; 300, guide wheel; 310, bearing seat; 320, inner ring block; 321, square rod; 330, blade; 331, fixing part; 340, outer ring block; 341, rectangular through hole; 342, circular groove; 350, semicircular sealing plate; 400, turbine; 500, clutch assembly. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0025] See also Figure 1-7 In the embodiment of the utility model, a locking torque converter for a loader includes a pump wheel 100 and a front housing 200. A guide wheel 300, a turbine 400 and a clutch assembly 500 are fixedly installed between the pump wheel 100 and the front housing 200. The pump wheel 100 and the turbine 400 are arranged opposite to each other. The guide wheel 300 is fixedly installed between the pump wheel 100 and the turbine 400. The clutch assembly 500 is fixedly installed between the turbine 400 and the front housing 200. The guide wheel 300 includes a bearing seat 310. An inner ring block 320 is fixedly installed on the outer side of the bearing seat 310. The inner ring block 320 The outer side of the plurality of blades 330 is fixed with multiple groups of supporting components in a circular shape at equal angles, and the outer side of the supporting components is detachably plugged with blades 330, and the supporting components include two square rods 321 that are fixedly connected to the inner ring block 320, and the inside of the blade 330 is provided with two square holes, and the square rods 321 are movably plugged with the square holes at corresponding positions, and the outer sides of the plurality of blades 330 are sleeved and fixed with an outer ring block 340, and one end of the square rod 321 that passes through the outer ring block 340 is detachably fixed with a fixing part 331, and the outer side of the outer ring block 340 is detachably fixed with two symmetrically distributed semicircular sealing plates 350.

[0026] Specifically, a plurality of square rods 321 are fixed at equal angles in a ring shape on the outer side of the inner ring block 320, and the blades 330 are inserted into the square rods 321 through the rectangular through holes 341 on the outer ring block 340. Then, the studs on the fixing members 331 are screwed between the square rods 321, the blades 330 and the outer ring block 340, so that the blades 330 are removably fixed at a position between the inner ring block 320 and the outer ring block 340. When the blade 330 at a certain position is damaged, the fixing member 331 fixed at the position of the blade 330 can be removed, and then the blade 330 can be taken out, and then a new blade 330 can be installed, thereby eliminating the need to discard the intact blade 330 together with the damaged blade 330, thereby achieving targeted repair and replacement of the damaged blade 330 and saving repair costs.

[0027] like Figure 7 As shown, in this embodiment, the fixing member 331 includes a circular block, a stud is fixed on the inner side of the circular block, the stud is screwed together with the corresponding square rod 321, a cross groove is provided on the outer side of the circular block, the cross groove facilitates the rotation of the stud, the stud is screwed between the square rod 321 and the outer ring block 340 to fix the blade 330 between the inner ring block 320 and the outer ring block 340.

[0028] like Figure 5 and Figure 6 As shown, in this embodiment, the outer side of the outer ring block 340 is provided with a plurality of rectangular through holes 341 at equal angles in a ring shape, and the end of the blade 330 facing away from the inner ring block 320 passes through the rectangular through hole 341, so that the blade 330 can be installed on the square rod 321 of the inner ring block 320 through the rectangular through hole 341 on the outer ring block 340.

[0029] In this embodiment, two circular grooves 342 are opened on the outer side of the rectangular through hole 341 , and the circular blocks are arranged inside the circular grooves 342 at corresponding positions, so that the circular blocks will be stored in the circular grooves 342 after the studs are screwed into the square rod 321 .

[0030] like Figure 4 As shown, in this embodiment, an annular groove is opened on the outer side of the outer ring block 340 to facilitate the installation of the semicircular sealing plate 350. The ends of the two semicircular sealing plates 350 can be detachably welded and fixed. The semicircular sealing plates 350 seal the multiple fixing parts 331 inside the outer ring block 340 to protect the fixing parts 331.

[0031] In specific implementation, when the guide wheel 300 needs to be repaired, the front housing 200 and the rear housing fixed on the pump wheel 100 are cut apart using an external lathe, and then the guide wheel 300 is taken out, the position of the damaged blade 330 on the guide wheel 300 is checked, the two semicircular sealing plates 350 are removed, and the circular block is rotated using a screwdriver or other tool to screw the stud on the circular block out from the inside of the square rod 321, and then the damaged blade 330 is removed from the rectangular through hole 341 of the outer ring block 340. 0 is slid out along the square rod 321, and then a new blade 330 is installed along the square rod 321 to the position between the inner ring block 320 and the outer ring block 340, and the removed stud is screwed again between the square rod 321 and the outer ring block 340 to fix the blade 330 between the inner ring block 320 and the outer ring block 340, and finally the semicircular sealing plate 350 is welded and fixed to the outer side of the outer ring block 340. After completing the maintenance of the guide wheel 300, the front shell 200 and the rear shell are combined and welded. Example

[0032] On the basis of the first embodiment, the cut front housing 200 and the rear housing can be accurately welded together to facilitate maintaining the dynamic balance of the torque converter in the initial state.

[0033] like Figure 5 As shown, in the present embodiment, a notch 1 210 and a notch 220 are respectively provided on the inner side of the bottom and the inner side of the top of the front shell 200, and both the notch 1 210 and the notch 2 220 are arc-shaped. A rear shell is fixed to the outer side of the pump wheel 100, and a positioning block 110 and a positioning block 2 120 are respectively fixed on the inner side of the bottom and the inner side of the top of the rear shell, and both the positioning block 110 and the positioning block 2 120 are arc-shaped. The positioning block 110 is movably connected to the notch 1 210, and the positioning block 2 120 is movably connected to the notch 220.

[0034] In this embodiment, during the repair of the torque converter, a lathe is first used to cut the front housing 200 and the rear housing apart, and then the guide wheel 300 is inspected and repaired. After the guide wheel 300 is repaired, the front housing 200 and the rear housing need to be welded together again. During the merging and docking, the positioning block 110 can be inserted into the inside of the notch 1 210, and the positioning block 2 120 can be inserted into the inside of the notch 220, so that the state of the front housing 200 and the rear housing after merging is the same as the state before disassembly, which is convenient for the torque converter to maintain the dynamic balance of the initial state.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A locking hydraulic torque converter for a loader, comprising a pump wheel (100) and a front housing (200), wherein a guide wheel (300), a turbine (400) and a clutch assembly (500) are fixedly mounted between the pump wheel (100) and the front housing (200), wherein the pump wheel (100) and the turbine (400) are arranged opposite to each other, the guide wheel (300) is fixedly mounted between the pump wheel (100) and the turbine (400), and the clutch assembly (500) is fixedly mounted between the turbine (400) and the front housing (200), wherein: The guide wheel (300) comprises a bearing seat (310), an inner ring block (320) is fixed on the outer side of the bearing seat (310), a plurality of support components are fixed on the outer side of the inner ring block (320) in an annular shape at equal angles, a blade (330) is detachably plugged and fixed on the outer side of the support component, the support component comprises two square rods (321) both fixedly connected to the inner ring block (320), two square holes are provided through the inside of the blade (330), the square rod (321) is movably plugged into the square holes at corresponding positions, an outer ring block (340) is sleeved and fixed on the outer side of the plurality of blades (330), a fixing piece (331) is detachably fixed on one end of the square rod (321) passing through the outer ring block (340), and two symmetrically distributed semicircular sealing plates (350) are detachably fixed on the outer side of the outer ring block (340).

2. A locking hydraulic torque converter for a loader according to claim 1, characterized in that: The fixing member (331) comprises a circular block, a stud is fixed on the inner side of the circular block, the stud is screwed and connected to the square rod (321) at the corresponding position, and a cross-shaped groove is formed on the outer side of the circular block.

3. A locking hydraulic torque converter for a loader according to claim 2, characterized in that: The outer side of the outer ring block (340) is provided with a plurality of rectangular through holes (341) in an annular shape and at equal angles, and one end of the blade (330) facing away from the inner ring block (320) passes through the rectangular through hole (341).

4. A locking hydraulic torque converter for a loader according to claim 3, characterized in that: Two circular grooves (342) are provided on the outer side of the rectangular through hole (341), and the circular blocks are arranged inside the circular grooves (342) at corresponding positions.

5. The locking hydraulic torque converter for a loader according to claim 1, characterized in that: An annular groove for convenient installation of a semicircular sealing plate (350) is provided on the outer side of the outer ring block (340), and the ends of the two semicircular sealing plates (350) are detachably fixed by welding.

6. The locking hydraulic torque converter for a loader according to claim 1, characterized in that: A notch 1 (210) and a notch 2 (220) are respectively provided on the inner side of the bottom and the inner side of the top of the front shell (200); both the notch 1 (210) and the notch 2 (220) are arc-shaped.

7. The locking hydraulic torque converter of a loader according to claim 6, characterized in that: A rear shell is fixed on the outer side of the pump wheel (100), and a positioning block 1 (110) and a positioning block 2 (120) are respectively fixed on the inner side of the bottom and the inner side of the top of the rear shell, wherein the positioning block 1 (110) and the positioning block 2 (120) are both arc-shaped, and the positioning block 1 (110) is movably plugged into the notch 1 (210), and the positioning block 2 (120) is movably plugged into the notch 2 (220).

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