CN216030468U - Special combined wrench - Google Patents

Abstract

A special combined wrench relates to the field of wrenches. The special combined wrench is used for disassembling and assembling a fixed sleeve and a nut of a swing frame assembly and comprises a spline wrench and a jaw handle, wherein the spline wrench comprises a handle seat, a handle pillar and a spline shaft which are sequentially connected from bottom to top; the integral key shaft is used for being connected with the splined hole cooperation of fixed cover, and a plurality of jack catchs are used for the joint in a plurality of draw-in grooves of following nut circumference interval arrangement one-to-one. The fixed cover and the nut of special combination spanner that this embodiment provided can high efficiency's dismouting rocker subassembly have improved the operating efficiency and have avoided the dismouting in-process to damage parts.

Description

Special combined wrench

Technical Field

The application relates to the field of wrenches, in particular to a special combined wrench.

Background

The swing frame assembly is an important component in a variable flow hydraulic pump, as shown in fig. 1 and 2, the swing frame assembly 100 is composed of a fixed sleeve 110 with a splined hole at the bottom, a swing frame 120, a plurality of plunger assemblies 130 (the plunger assemblies 130 are composed of plungers 131 and sliding shoes 132), a fixed plate 140, a nut 150 and other parts, the plunger assemblies 130 penetrate through and are fixed on the fixed plate 140 at intervals along the circumferential direction, the nut 150 is used for connecting the top through the fixed sleeve 110 of the swing frame 120 and the fixed plate 140 through a thread so as to fix the fixed plate 140 and the swing frame 120 to the fixed sleeve 110, the nut 150 is provided with a plurality of clamping grooves 151 at intervals along the circumferential direction, and a gasket and a bushing are arranged between the fixed sleeve 110 and the swing frame 120. When the variable flow hydraulic pump is used, the gap between the bottom of the sliding shoe 132 of the plunger assembly 130 and the wear surface of the swing frame 120 needs to be checked according to the requirements of a manual, the gap is required to be 0.001-0.002in. (0.03-0.05mm), if the gap exceeds the standard, the action of the plunger assembly in the oil cylinder is blocked at the rotating speed of 3750rpm, so that other parts of the pump are damaged, and at the moment, the swing frame assembly 100 needs to be disassembled to adjust the thickness of a gasket between the fixed sleeve 110 and the swing frame 120, so that the gap can meet the requirements.

When the swing frame assembly 100 is disassembled, an engineer needs to use the spline shaft to be meshed with the spline hole at the bottom of the fixed sleeve 110, then the nut 150 is disassembled in a manner that the fixed spline shaft is clamped by the sharp-nose pliers at 180 degrees, the nut 150 is disassembled in a manner that the nut 150 is rotated anticlockwise, but the operating space is narrow due to the occupied space of the plunger assemblies 130 connected by the fixed plate 140, the rotating torque of the nut 150 is large, the sharp-nose pliers are difficult to disassemble the nut 150, and in addition, the clamping is carried out for multiple times to easily damage and deform the clamping groove of the nut 150, so that the operation is time-consuming and labor-consuming, parts are easily damaged, and the disassembly and assembly efficiency of the swing frame assembly 100 is low.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a special combination spanner, its fixed cover and nut that can high efficiency's dismouting rocker subassembly have improved the operating efficiency and have avoided the dismouting in-process to damage parts.

The embodiment of the application is realized as follows:

the embodiment of the application provides a special combined wrench, which is used for disassembling and assembling a fixed sleeve and a nut of a swing frame assembly and comprises a spline wrench and a jaw handle, wherein the spline wrench comprises a handle seat, a handle pillar and a spline shaft which are sequentially connected from bottom to top; the integral key shaft is used for being connected with the splined hole cooperation of fixed cover, and a plurality of jack catchs are used for the joint in a plurality of draw-in grooves of following nut circumference interval arrangement one-to-one.

In some optional embodiments, the wrench connecting base further comprises a lower connecting base, an upper connecting base and a connecting column for connecting the lower connecting base and the upper connecting base, the lower connecting base is provided with a fixing groove for clamping the handle base, and the upper connecting base is provided with a limiting hole for the jaw strut to pass through.

In some optional embodiments, the top surface of the upper connecting seat is provided with a limiting groove for accommodating the rotatable claw column, and the limiting hole is arranged on the bottom wall of the limiting groove.

In some optional embodiments, the connecting column includes a lower supporting tube connected to the lower connecting seat and an upper supporting rod connected to the upper connecting seat, the bottom of the upper supporting rod is slidably inserted into the lower supporting tube, the lower supporting tube is further connected to a locking bolt, and the locking bolt moves along the axial direction of the locking bolt when rotating to press or stop pressing the upper supporting rod.

The beneficial effect of this application is: the special combined wrench provided by the embodiment is used for disassembling and assembling a fixed sleeve and a nut of a swing frame assembly, and comprises a spline wrench and a jaw handle, wherein the spline wrench comprises a handle seat, a handle pillar and a spline shaft which are sequentially connected from bottom to top; the integral key shaft is used for being connected with the splined hole cooperation of fixed cover, and a plurality of jack catchs are used for the joint in a plurality of draw-in grooves of following nut circumference interval arrangement one-to-one. The fixed cover and the nut of special combination spanner that this embodiment provided can high efficiency's dismouting rocker subassembly have improved the operating efficiency and have avoided the dismouting in-process to damage parts.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural view of a conventional pendulum assembly;

FIG. 2 is a schematic structural diagram of a nut in a conventional pendulum assembly;

fig. 3 is a schematic structural diagram of a special combination wrench provided in embodiment 1 of the present application;

fig. 4 is a schematic partial sectional structural view of a special combination wrench provided in embodiment 2 of the present application.

In the figure: 100. a swing frame assembly; 110. fixing a sleeve; 120. placing a frame; 130. a plunger assembly; 131. a plunger; 132. a slipper; 140. a fixing plate; 150. a nut; 151. a card slot; 200. a spline wrench; 210. a handle base; 220. a handle post; 230. a spline shaft; 300. a jaw handle; 310. a pawl post; 320. a jaw strut; 330. a claw; 400. a wrench connecting seat; 410. a lower connecting seat; 420. an upper connecting seat; 430. connecting columns; 431. a lower support cylinder; 432. an upper support rod; 433. locking the bolt; 440. fixing grooves; 450. a limiting hole; 460. a limiting groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The features and properties of the special combination wrench of the present application are described in further detail below with reference to the examples.

Example 1

As shown in fig. 3, an embodiment of the present application provides a special combination wrench, which is used for disassembling and assembling a fixed sleeve 110 and a nut 150 of a swing frame assembly 100, wherein the bottom of the fixed sleeve 110 has a spline hole, the top surface of the nut 150 is provided with four clamping slots 151 arranged at intervals along the circumferential direction of the nut 150, the special combination wrench includes a spline wrench 200 and a jaw handle 300, the spline wrench 200 includes a handle base 210, a handle pillar 220 and a spline shaft 230 which are sequentially connected from bottom to top, the jaw handle 300 includes a cylindrical jaw column 310 and a circular truncated cone-shaped jaw column 320 with a large upper part and a small lower part, one end of the jaw column 320, which is far away from the jaw column 310, is provided with four jaws 330 arranged at intervals along the circumferential direction of the jaw column 320, and the maximum outer diameter of the jaw column 320 is smaller than the outer diameter of the jaw column 310; the spline shaft 230 is adapted to be engaged with the spline hole of the fixing sleeve 110, and the four claws 330 are adapted to be engaged with the four engaging grooves 151 arranged along the circumference of the nut 150 in a one-to-one correspondence manner.

When the special combination wrench provided by the embodiment is used, a user places the handle base 210 of the spline wrench 200 on a workbench for fixing, then fixes the spline hole sleeve at the bottom of the fixing sleeve 110 of the swing frame assembly 100 on the spline shaft 230 at the top of the spline wrench 200, then picks up the jaw handle 300, arranges the jaw strut 320 of the jaw handle 300 downwards, then moves the jaw handle 300 downwards, enables the four jaws 330 connected with the jaw strut 320 to be clamped in the four clamping grooves 151 arranged at intervals along the circumferential direction of the nut 150 in a one-to-one correspondence manner and fixed, and rotates the jaw handle 300 to drive the nut 150 at the top of the fixing sleeve 110 through threaded connection to rotate, so that the nut 150 and the fixing sleeve 110 are separated to finish the disassembling operation.

Example 2

As shown in fig. 4, the present embodiment provides a special spanner wrench, which has substantially the same structure as the special spanner wrench provided in embodiment 1, and the difference is that in this embodiment, the wrench connecting base 400 further includes a wrench connecting base 400, the wrench connecting base 400 includes a lower connecting base 410, an upper connecting base 420, and a connecting column 430 connecting the lower connecting base 410 and the upper connecting base 420, the lower connecting base 410 is provided with a fixing groove 440 for clamping the handle base 210, the upper connecting base 420 is provided with a limiting hole 450 for passing the jaw support 320, a top surface of the upper connecting base 420 is provided with a limiting groove 460 for accommodating the rotatable jaw support 310, the limiting hole 450 is provided at a bottom wall of the limiting groove 460, the connecting column 430 includes a lower support 431 connected to the lower connecting base 410 and an upper support 432 connected to the upper connecting base 420, a bottom of the upper support 432 is slidably inserted into the lower support 431, the lower support 431 is further connected to a locking bolt 433 penetrating through a thread, the lock bolt 433 moves in its axial direction to press against or stop pressing against the upper support rod 432 when rotated.

When the special combination wrench provided by the embodiment is used, a user places the lower connecting seat 410 of the wrench connecting seat 400 on a workbench for fixing, then places the handle seat 210 of the spline wrench 200 in the fixing groove 440 of the lower connecting seat 410 for fixing, then sleeves the spline hole at the bottom of the fixing sleeve 110 of the swing frame assembly 100 on the spline shaft 230 at the top of the spline wrench 200 for fixing, then picks up the jaw handle 300, downwardly penetrates the jaw support column 320 of the jaw handle 300 through the limiting groove 460 and the limiting hole 450 formed in the top surface of the upper connecting seat 420, so that the bottom wall of the limiting groove 460 supports the jaw column 310, then slidably inserts the bottom of the upper support rod 432 connected with the upper connecting seat 420 into the lower support cylinder 431, and lifts and rotates the upper support rod 432, so that the four jaws 330 connected with the jaw support column 320 are clamped in the four clamping grooves 151 arranged at intervals along the circumferential direction of the nut 150 one by one to one, at the moment, the locking bolt 433 is rotated to move axially so as to press the upper support rod 432 and fix the upper support rod 432 and the lower support rod 431 with the lower support rod 432 and the lower support cylinder 431 Then, the rotary jaw handle 300 drives the top of the fixing sleeve 110 to rotate through the nut 150 connected with the screw thread, so that the nut 150 and the fixing sleeve 110 are separated to finish the disassembly operation.

The embodiments described above are some, but not all embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Claims (4)

1. A special combined wrench is used for disassembling and assembling a fixed sleeve and a nut of a swing frame assembly and is characterized by comprising a spline wrench and a jaw handle, wherein the spline wrench comprises a handle seat, a handle pillar and a spline shaft which are sequentially connected from bottom to top; the spline shaft is used for being connected with the spline hole of the fixed sleeve in a matched mode, and the clamping jaws are used for being clamped in the clamping grooves which are arranged along the circumferential direction of the nut at intervals in a one-to-one mode.

2. The special combination wrench as claimed in claim 1, further comprising a wrench connecting seat, wherein the wrench connecting seat comprises a lower connecting seat, an upper connecting seat and a connecting column for connecting the lower connecting seat and the upper connecting seat, the lower connecting seat is provided with a fixing groove for clamping the handle seat, and the upper connecting seat is provided with a limiting hole for the claw support to pass through.

3. The special combination wrench as claimed in claim 2, wherein the top surface of the upper connecting seat is formed with a limiting groove for receiving the rotatable jaw column, and the limiting hole is formed in a bottom wall of the limiting groove.

4. The special combination wrench as claimed in claim 2, wherein the connecting column comprises a lower supporting tube connected to the lower connecting seat and an upper supporting rod connected to the upper connecting seat, the bottom of the upper supporting rod is slidably inserted into the lower supporting tube, the lower supporting tube is further connected to a locking bolt, and the locking bolt moves along the axial direction of the locking bolt when rotating to press or stop pressing the upper supporting rod.

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