CN211784147U - Multifunctional rubber node rigidity test tool - Google Patents

Abstract

The utility model discloses a multifunctional rubber node rigidity test tool, which comprises an upper clamp at the upper end, a lower clamp at the lower end and a middle node clamp; the upper clamp and the lower clamp are both provided with clamp fixing mounting holes, the lower clamp is an axial clamp or a radial clamp, one end of the node clamp is connected with the upper clamp through a plurality of supporting screw rods, and the other end of the node clamp is connected with the lower clamp through a clamped rubber node. The utility model provides a rubber node rigidity test frock possesses advantages such as multi-direction, low cost, high accuracy, many rigidity, elimination rubber node pre-pressure: the rigidity test in the radial direction and the axial direction can be realized, the number of tool fittings is reduced, and the cost is reduced; the fit clearance of the tool is eliminated, the test precision is improved, the overall structure of the tool has stronger rigidity, and the tool can be used for static/dynamic rigidity tests of rubber nodes; the pre-pressure in the rubber node caused by the matching of the actuator and the installation process in the installation process is avoided.

Description

Multifunctional rubber node rigidity test tool

Technical Field

The utility model relates to a high-speed railway spare part detection area especially relates to a rubber node rigidity test frock.

Background

The rubber node is composed of a coaxial outer sleeve, a coaxial core shaft and a rubber part poured between the outer sleeve and the core shaft, has good nonlinear rigidity characteristic and equivalent damping, and is widely applied to a high-speed train suspension system.

At present, in the industry, for testing the rigidity of a rubber node, a rubber node static rigidity testing device is adopted, through a fixed node tool on an iron floor, the radial rigidity/vertical rigidity is respectively tested through actuators in the horizontal direction/vertical direction, and the actuators are arranged on a portal frame structure and a counter-force base; this approach requires actuators in different directions and requires a high space requirement for the test site.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a multi-functional rubber node rigidity test frock can carry out not equidirectional rigidity experiment, avoids using two horizontal/vertical direction actuators, reduction equipment cost.

In order to realize the above purpose, the utility model discloses a technical scheme:

a multifunctional rubber node rigidity test tool comprises an upper clamp at the upper end, a lower clamp at the lower end and a middle node clamp;

the upper clamp and the lower clamp are both provided with clamp fixing mounting holes, the lower clamp is an axial clamp or a radial clamp, one end of the node clamp is connected with the upper clamp through a plurality of supporting screw rods, and the other end of the node clamp is connected with the lower clamp through a clamped rubber node.

Further, go up anchor clamps and be protruding type structure, protruding type structure middle part step all is provided with first support screw rod hole all around.

Further, the node clamp is a pair of arc-shaped clamps connected through bolts and nuts, and second support screw holes are formed in the top end face and the front face and the rear face of each arc-shaped clamp.

Further, the support screw includes the screw thread portion at both ends and the flat side portion in centre, the screw thread portion at both ends inserts first support screw hole and second support screw hole respectively, and inserts adjusting nut is all installed at the screw thread portion both ends in first support screw hole.

Further, when the lower clamp is an axial clamp, the support screw is connected with a second support screw hole in front of and behind the arc-shaped clamp; the lower fixture is provided with an articulated bolt for articulating the rubber node in a direction perpendicular to the length direction of the tool, the lower fixture is provided with a puller bolt for jacking the rubber node in the direction along the length direction of the tool, and a puller nut is arranged on the puller bolt close to the end of the rubber node.

Further, when the lower clamp is a radial clamp, the supporting screw is connected with a second supporting screw hole on the top end face of the arc-shaped clamp; lower fixture is U type structure, all is provided with rubber node mounting groove on the face at U type structure opening part both ends, the briquetting is installed through the bolt in rubber node mounting groove department.

Furthermore, the pressing block is a convex pressing block, the top end face of the convex pressing block is obliquely arranged, and the pressing block extends towards the inner end of the U-shaped opening.

Further, a pin hole is formed in the arc-shaped surface of the inner end of the arc-shaped clamp, and a positioning pin is installed on the pin hole.

Further, the pair of arc-shaped clamps are in clearance fit.

Furthermore, the upper clamp, the lower clamp and the node clamp are all made of 40 Cr.

The utility model has the advantages that:

the utility model provides a rubber node rigidity test frock possesses the rigidity test of a plurality of directions, can realize the rigidity test of radial/axial two directions, avoids using two different directional actuators, and one is multi-purpose, reduces the frock accessory quantity, reduce cost; the fit clearance of the tool is eliminated, the test precision is improved, the overall structure of the tool has stronger rigidity, and the tool can be used for static/dynamic rigidity tests of rubber nodes; the upper clamp and the arc-shaped clamp are fixed by the four supporting screw rods, so that the situation that pre-pressure exists inside a rubber node caused by the fact that the actuator is matched with the installation process in the installation process is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the axial clamp as the lower clamp of the present invention;

FIG. 2 is a schematic view of the overall structure of the radial lower clamp of the present invention;

fig. 3 is a schematic structural view of the upper clamp of the present invention;

FIG. 4 is a schematic structural view of the lower clamp of the present invention being an axial clamp;

fig. 5 is a schematic structural view of the lower clamp of the present invention being a radial clamp;

FIG. 6 is a schematic structural view of the node clamp of the present invention;

fig. 7 is another view angle structure diagram of the node clamp of the present invention;

FIG. 8 is a schematic structural view of the support screw of the present invention;

FIG. 9 is a schematic structural view of the rubber node of the present invention;

in the figure: 1. an upper clamp; 11. fixing the mounting hole by a clamp; 12. a first support screw hole; 2. a lower clamp; 21. fixing the mounting hole by a clamp; 22. a rubber node mounting groove; 3. a node clamp; 31. a second support screw hole; 32. a pin hole; 4. a support screw; 5. adjusting the nut; 6. jacking the bolt; 7. tightly pushing the nut; 8. a hinge bolt; 9. briquetting; 10. and (4) rubber nodes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further explained with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; 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 invention can be understood in specific cases to those skilled in the art.

A multifunctional rubber node rigidity test tool is shown in figures 1-5 and comprises an upper clamp 1 at the upper end, a lower clamp 2 at the lower end and a middle node clamp 3; all be provided with anchor clamps fixed mounting hole on anchor clamps 1 and the lower anchor clamps 2, lower anchor clamps 2 are axial anchor clamps or radial anchor clamps, and 3 one end of node anchor clamps is connected through four supporting screw 4 and is gone up anchor clamps 1, and the other end passes through the rubber node connection lower anchor clamps 2 of centre gripping.

The upper clamp 1 is connected with the upper clamp seat of the rack through a bolt, the lower clamp 2 is connected with the lower clamp seat of the rack through a bolt, and particularly the bolt penetrates through the clamp fixing mounting hole to be connected and fixed. The node clamp 3 is used for clamping a rubber node 10 to be tested. The lower clamp 2 is an axial clamp or a radial clamp, so that rigidity tests in two radial/axial directions can be realized, the use of two actuators in different directions is avoided, and the test cost is reduced.

As the optimization scheme of this embodiment, as shown in fig. 3, the upper fixture 1 is of a convex structure, the periphery of the middle step of the convex structure is provided with first support screw holes 12, specifically, the front, back, left and right sides of the middle step are provided with two first support screw holes 12, and eight first support screw holes 12 are provided altogether, so that the upper fixture 1 can be connected with the node fixture 3 when different lower fixtures 2 are used.

As an optimized solution of this embodiment, as shown in fig. 1, 2 and 6, the node clamp 3 is a pair of arc clamps connected by bolts and nuts, the top end surface and the front and rear surfaces of the arc clamps are provided with second support screw holes 31, specifically, the top end surface has four second support screw holes 31, and the front and rear surfaces are two, so that when different lower clamps 2 are used, the upper clamp 1 can be connected with the node clamp 3.

As a preferable aspect of the present embodiment, as shown in fig. 1, 2 and 8, the support screw 4 includes screw portions at both ends and a flat square portion in the middle, the screw portions at both ends are inserted into the first support screw hole 12 and the second support screw hole 31, respectively, and the adjustment nuts 5 are mounted at both ends of the screw portion inserted into the first support screw hole 12.

In the prior art, when the rubber node is installed, the upper clamp 1 is directly acted by the actuator, the actuator drives the piston rod to move, the upper clamp 1 is further driven to approach the rubber node, and the movement of the actuator is not controlled accurately, so that the upper clamp 1 is always tightly attached to the node clamp 3 or the rubber node 10, pre-pressure is applied to the rubber node 10, and the rubber node is damaged. And the utility model discloses, it is fixed to step up through 4 two nuts of four supporting screw, and two nuts will go up anchor clamps 1 and stop in suitable position, can guarantee that the frock assembles smoothly and eliminate the installation clearance, avoid because of actuator cooperation frock installation removal results in the inside rubber of node to have the pre-pressure.

As an optimized solution of the present embodiment, as shown in fig. 1 and 4, when the lower fixture 2 is an axial fixture, the support screw 4 is connected to the second support screw hole 31 at the front and rear of the arc fixture; the lower clamp 2 is provided with an articulated bolt 8 for articulating a rubber node in a direction perpendicular to the length direction of the tool, the lower clamp 2 is provided with a puller bolt 6 for jacking the rubber node in the direction along the length direction of the tool, and a puller nut 7 is arranged on the puller bolt 6 close to the end of the rubber node.

The hinge bolt 8 is connected with the rubber node mandrel and the lower clamp 2, but a gap exists between the hole and the shaft, so that the rubber node is jacked by the jacking bolt 6, and the gap is eliminated. The tight bolt perforation of top on the anchor clamps 2 down is the tapping hole, and tight bolt 6 threaded connection in it to back-twist with tight nut 7 in the top, lock tight bolt 6 in the top, prevent that tight bolt 6 return from leading to anchor clamps 2 and rubber node connection not hard up down.

As a preferable solution of the present embodiment, as shown in fig. 2 and 5, when the lower jig 2 is a radial jig, the support screw 4 is connected to the second support screw hole 31 of the top end surface of the arc-shaped jig; lower fixture 2 is U type structure, all is provided with rubber node mounting groove 22 on the face at U type structure opening part both ends, and briquetting 9 is installed through the bolt in rubber node mounting groove 22 department, through the fixed rubber node of briquetting 9.

As an optimized scheme of the present embodiment, as shown in fig. 2, the pressing block 9 is a convex pressing block, the top end surface of the convex pressing block is obliquely arranged, and the pressing block 9 extends towards the inner end of the U-shaped port. One of the four surfaces of the rubber node mandrel is inclined, so that the top end surface of the convex pressing block is obliquely arranged to be convenient for assembling with the convex pressing block. The pressing block 9 extends towards the inner end of the U-shaped opening and props against the rubber node at the inner end, so that the rubber node is prevented from moving left and right.

As an optimized scheme of this embodiment, as shown in fig. 7, the inner end arc surface of the arc fixture is provided with a pin hole 32, and a positioning pin is installed on the pin hole 32, so that the rubber node is overlapped with the vertical central surface of the arc fixture conveniently, and it is ensured that the four support screws 4 are matched with the bolt holes of the upper fixture 1 in the radial/axial installation process.

As the optimization scheme of this embodiment, a pair of arc anchor clamps are clearance fit, fasten through bolt and nut, lock the rubber node.

As an optimized scheme of the embodiment, the materials of the upper clamp 1, the lower clamp 2 and the node clamp 3 are all 40 Cr.

For better understanding, the utility model discloses, following is to the theory of operation of the utility model make a complete description:

locking a rubber node: the center positioning pin of the arc-shaped clamp is used for positioning the rubber node, and the pair of arc-shaped clamps are locked on the rubber node through the bolt connection at the two ends.

Installation of lower anchor clamps 2 when radial anchor clamps: when the device is installed, the lower clamp 2 is installed firstly, and the lower clamp is fixed with the lower clamp seat of the rack by penetrating a bolt into the clamp fixing and installing hole 21. The locked rubber node assembly is then placed in the rubber node mounting groove 22 of the lower fixture 2 (with the rubber node 10 mandrel inclined upward). Through briquetting 9, restriction node subassembly axial clearance guarantees that the node is placed in the middle. Four supporting screw rods 4 are sequentially arranged on the node clamp 3, and adjusting nuts 5 are arranged on the supporting screw rods 4. And then installing the upper clamp 1, penetrating the clamp fixing and installing hole 11 through a bolt to be connected with the upper clamp seat, contracting the piston rod, fixing the upper clamp 1, and simultaneously ensuring that the first support screw hole 12 is aligned with the support screw 4. The upper clamp 1 is lowered (loaded) by extending the actuator until the four support screws 4 pass through the first support screw holes 12 of the upper clamp 1 and the adjusting nut 5 can be attached. And finally, adjusting the up-down adjusting nut 5 to ensure that the four supporting screw rods 4 are tightly matched with the surface of the upper clamp 1.

Installation of lower anchor clamps 2 when being axial anchor clamps: when the device is installed, the lower clamp 2 is installed firstly, and the lower clamp is fixed with the lower clamp seat of the rack by penetrating a bolt into the clamp fixing and installing hole 21. And then installing the locked rubber node assembly, and hinging the rubber node by a hinging bolt 8. And then fastening and leveling are carried out by utilizing the puller bolts 6 at the two ends, the end surface of the node is ensured to be horizontal, and the puller bolts 6 are fastened by screwing the puller nuts 7, so that the puller bolts 6 are ensured to dead and tightly jack the node, and the gap of the core shaft bolt hole is eliminated. And similarly, the upper clamp 1 is installed and fixed, the actuator descends, and the four support screw rods 4 are tightly matched with the surface of the upper clamp 1 through the up-down adjusting nuts 5.

During specific work, the lower clamp 2 is fixed, the upper clamp 1 is connected with a hydraulic actuator, the actuator applies displacement loading by using a hydraulic control system, and radial/axial force is transmitted sequentially through the upper clamp 1, the supporting screw rod 4, the node clamp 3 and the rubber node.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A multifunctional rubber node rigidity test tool is characterized by comprising an upper clamp (1) at the upper end, a lower clamp (2) at the lower end and a middle node clamp (3);

go up anchor clamps (1) and all be provided with anchor clamps fixed mounting hole (11, 21) on anchor clamps (2) down, anchor clamps (2) are axial anchor clamps or radial anchor clamps down, node anchor clamps (3) one end is connected through many supporting screw (4) go up anchor clamps (1), and the other end passes through the rubber node connection of centre gripping anchor clamps (2) down.

2. The test tool according to claim 1, wherein the upper clamp (1) is of a convex structure, and first support screw holes (12) are formed in the periphery of a middle step of the convex structure.

3. The test tool according to claim 2, wherein the node clamp (3) is a pair of arc clamps connected through bolts and nuts, and the top end face and the front and rear faces of the arc clamps are provided with second support screw holes (31).

4. The test tool according to claim 3, wherein the support screw (4) comprises two end screw thread portions and a middle flat square portion, the two end screw thread portions are respectively inserted into the first support screw hole (12) and the second support screw hole (31), and adjusting nuts (5) are mounted at two ends of the screw thread portions inserted into the first support screw hole (12).

5. The test tool according to claim 4, wherein when the lower clamp (2) is an axial clamp, the support screw (4) is connected with a second support screw hole (31) in the front and rear of the arc-shaped clamp; the lower fixture (2) is provided with an articulated bolt (8) of an articulated rubber node in a direction perpendicular to the length direction of the tool, the lower fixture (2) is provided with a puller bolt (6) for jacking the rubber node in the direction of the length of the tool, and a puller nut (7) is arranged on the puller bolt (6) close to the end of the rubber node.

6. The test tool according to claim 4, wherein when the lower clamp (2) is a radial clamp, the support screw (4) is connected with a second support screw hole (31) on the top end face of the arc-shaped clamp; anchor clamps (2) are U type structure down, all are provided with rubber node mounting groove (22) on the face at U type structure opening part both ends, briquetting (9) are installed through the bolt in rubber node mounting groove (22) department.

7. Test tool according to claim 6, characterized in that the pressure block (9) is a convex pressure block, the top end face of the convex pressure block is arranged obliquely, and the pressure block (9) extends towards the inner end of the U-shaped opening.

8. The test tool of claim 3, wherein the inner end arc surface of the arc clamp is provided with a pin hole (32), and a positioning pin is mounted on the pin hole (32).

9. The test fixture of claim 3, wherein the pair of arc-shaped clamps are in clearance fit.

10. The test tool according to any one of claims 1 to 9, wherein the upper clamp (1), the lower clamp (2) and the node clamp (3) are all made of 40 Cr.

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