Adjustable load device and test bench

Abstract

The utility model provides an adjustable load device and testbed, including top load loading part, mounting beam, load conduction part, bottom load loading part, the load conduction part includes pressure support plate, pressure sensor, middle support seat, roller support, bottom load loading part and load conduction part are connected to apply the load to the rolling body, the pressure sensor is connected with the pressure support plate, the middle support seat is connected with the roller support seat, and the roller support seat is connected with the mounting beam. And the top load loading part comprises an adjusting screw rod and a locknut. The adjustable variable load device and the test bed are helpful for realizing variable load application to the rolling body, and can realize real-time feedback of a pressure value by utilizing the middle load conduction part, so that the accuracy of feedback data is improved, and meanwhile, stable rigid up-and-down movement of the adjustable variable load device in the load application process is ensured; therefore, the detection effect of the test bed is improved, and a reliable detection scheme is provided for related technical personnel.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical testing technical field especially a kind of adjustable load device and test bench. BACKGROUND

[0002] During the load rolling body bearing pressure test process, torque wrench is currently used to exert external force value on load rolling body to preset, this method cannot accurately reflect actual external force exertion value, and after load rolling body moves for a certain time, preset value will have uncertain change, because there is no accurate external load value feedback, the accuracy of test result is distorted. And the vibration generated by the rigid load applied on load rolling body also affects the test result.

[0003] Therefore, it is necessary to provide a kind of adjustable load device and test bench to overcome the defects in the above. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of adjustable load device and test bench, by load loading part and load transmission part realize stepless load application, in the real-time feedback of guaranteeing exertion value improves the accuracy of feedback value, the scheme structure rigidity is good, can be applicable to different working conditions.

[0005] According to an aspect of the utility model, provide a kind of adjustable load device, set up along vertical direction, including top load loading part, mounting beam, load transmission part, bottom load loading part, top load loading part is used to load load transmission part is connected with top load loading part to conduct the load applied, load transmission part includes pressure support plate, pressure sensor, middle support seat, gyro wheel support, mounting beam is placed between top load loading part and pressure support plate and is connected with pressure support plate by limiting screw, bottom load loading part is connected with load transmission part to load is applied to rolling body, top load loading part includes adjusting screw rod and locknut, adjusting screw rod is arranged in mounting beam and is abutted with pressure support plate to adjust load, locknut is sheathed in adjusting screw rod and is placed above mounting beam and is contacted with mounting beam. Through the above scheme, it is helpful to realize the variable load application to rolling body, while using intermediate load transmission part can realize the real-time feedback of pressure value, improve the accuracy of feedback data, while guaranteeing the stable rigidity up-and-down movement of adjustable load device in load application process, to help improve test bench detection effect, provide reliable detection scheme for relevant technical personnel.

[0006] Preferably, the load conducting part further comprises a middle supporting rod penetrating between the middle supporting base and the roller support connection, and a supporting spring sleeved on the middle supporting rod. Through the above scheme, it is helpful to realize real-time feedback of the loading load, improve the accuracy of the feedback value, and realize shock absorption of the adjustable load device, thereby avoiding affecting the detection effect of the pressure sensor and damaging the pressure sensor.

[0007] Preferably, the load conducting part further comprises a positioning screw at least partially penetrating the pressure supporting plate, the middle supporting base, and the roller support and the roller support screw connection. Through the above scheme, it is helpful to realize the placement of the pressure sensor and realize real-time feedback of the pressure value.

[0008] Preferably, the load conducting part further comprises a guide shaft penetrating the middle supporting base in the vertical direction, and the upper end of the guide shaft is at least partially disposed on the pressure supporting plate and connected by the screw, and the lower end of the guide shaft is connected with the roller support. Through the above scheme, it is helpful to prevent the middle supporting base from generating excessive deflection, thereby avoiding affecting the detection effect of the pressure sensor and damaging the pressure sensor.

[0009] Preferably, the load conducting part further comprises a positioning copper sleeve sleeved on the guide shaft relatively close to the upper end, and a guide copper sleeve sleeved on the guide shaft relatively close to the lower end, and the guide shaft is relatively movable in the vertical direction. Through the above scheme, it is helpful to realize stable rigid up-down movement of the shaft.

[0010] Preferably, the guide shaft comprises two guide shafts arranged in one diagonal direction of the pressure supporting plate, and the positioning screw comprises two positioning screws arranged in the other diagonal direction of the pressure supporting plate. Through the above scheme, it is helpful to realize stable rigid up-down movement of the shaft, and to reduce the deflection of the middle supporting base caused by the large through-hole gap of the positioning screw.

[0011] Preferably, the installation beam comprises an installation groove disposed at the bottom of the installation beam, and the pressure supporting plate is disposed in the installation groove. Through the above scheme, it is helpful to limit the pressure supporting plate and realize stepless load downward loading.

[0012] Preferably, the load conducting part further comprises an adjusting pad sleeved on the guide shaft and at least partially in contact with the guide copper sleeve.

[0013] Preferably, the load conducting part further comprises an inner ring sleeved on the guide shaft and at least partially in contact with the adjusting pad.

[0014] Preferably, the bottom load loading part comprises a first supporting shaft connected with the roller support, a second supporting shaft connected with the roller support, and a pressure roller sleeved on the first supporting shaft, and the second supporting shaft is at least partially disposed in the first supporting shaft, and the pressure roller is at least partially disposed in the roller support.

[0015] Preferably, the roller support comprises an open slot, a first connecting hole and a second connecting hole, the open slot is arranged below the roller support, the first connecting hole and the second connecting hole are arranged on the side of the open slot and penetrate the open slot, the pressure roller is at least partially arranged in the open slot, the first supporting shaft is arranged in the first connecting hole, and the second supporting shaft is arranged in the first connecting hole and the second connecting hole.

[0016] Preferably, the bottom load loading part further comprises a roller bearing sleeved with the second supporting shaft and in contact with the pressure roller.

[0017] Preferably, the bottom load loading part further comprises an end spring sleeved with the first supporting shaft and arranged at the end of the roller bearing.

[0018] Preferably, according to another aspect of the present application, a test bench is provided, comprising a bottom roller group, a supporting frame and at least two adjustable load devices of the above-mentioned scheme.

[0019] Preferably, a test bench comprises four adjustable load devices.

[0020] The adjustable load device and the test bench provided by the present application can realize variable load application to the rolling body through the top load loading part, the load conducting part and the bottom load loading part, and can realize real-time feedback of the pressure value through the intermediate load conducting part, thereby improving the accuracy of the feedback data and ensuring stable rigid upward and downward movement of the adjustable load device during the load application process. The scheme has good structural rigidity and is helpful to improve the detection effect of the test bench and provides a reliable detection scheme for related technical personnel. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described in detail below in combination with the drawings and specific embodiments:

[0022] Figure 1 is a sectional view of the adjustable load device;

[0023] Figure 2 is a local perspective view of the adjustable load device;

[0024] Figure 3 is a local plan view of the adjustable load device;

[0025] Figure 4 is Figure 3 is a sectional view at the position of A-A;

[0026] Figure 5 is an exploded view of the bottom load loading part;

[0027] Figure 6 is a schematic view of the roller support;

[0028] Figure 7 A test bench comprising a variable load device.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 10, top load loading part; 20, load conducting part; 30, bottom load loading part; 40, mounting beam; 50, rolling body; 60, support frame; 70, bottom roller set; 101, adjusting screw; 102, lock nut; 103, limiting screw; 201, pressure support plate; 202, pressure sensor; 203, middle support seat; 204, middle support rod; 205, support spring; 206, roller support; 2061, open slot; 2062, first connecting hole; 2063, second connecting hole; 207, positioning screw; 208, guide shaft; 209, positioning copper sleeve; 210, inner collar; 211, adjusting pad; 212, guide copper sleeve; 301, first support shaft; 302, snap spring; 303, roller bearing; 304, pressure roller; 305, second support shaft; 401, mounting groove; M1, screw. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0032] In order to make the drawing simple, only the parts related to the present application are shown in each drawing, and they do not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0033] It should be further understood that the term "and / or" used in the specification and claims of the present application means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0034] In this article, it is necessary to explain that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] In addition, in the description of the present application, the terms "first", "second" and the like are only used for partial description, and cannot be understood as indicating or implying relative importance.

[0036] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings and other embodiments according to these drawings without creating creative labor.

[0037] Referring to Figures 1 to 7 As shown in the drawings, the embodiment provides a variable load device, which is arranged in a vertical direction and includes a top load loading part 10, a mounting beam 40, a load conducting part 20, and a bottom load loading part 30. The top load loading part 10 is used to apply a load to the load conducting part 20, and the top load loading part 10 is connected to the load conducting part 20 to conduct the applied load. The load conducting part 20 includes a pressure support plate 201, a pressure sensor 202, a middle support seat 203, and a roller support 206. The mounting beam 40 is arranged between the top load loading part 10 and the pressure support plate 201 and is connected to the pressure support plate 201 through a limiting screw 103. The bottom load loading part 30 is connected to the load conducting part 20 to apply a load to a rolling body 50. The top load loading part 10 includes an adjusting screw 101 and a lock nut 102. The adjusting screw 101 is arranged in the mounting beam 40 and abuts against the pressure support plate 201 to adjust the applied load. The lock nut 102 is sleeved on the adjusting screw 101 and arranged above the mounting beam 40 to contact the mounting beam 40. The above-mentioned scheme helps to realize the variable load applied to the rolling body 50, and at the same time, the intermediate load conducting part 20 can realize real-time feedback of the pressure value, improve the accuracy of the feedback data, and ensure the stable rigid upward and downward movement of the variable load device during the load application process, thereby helping to improve the test bench detection effect and providing a reliable detection scheme for related technical personnel.

[0038] The mounting beam comprises a mounting groove 401 arranged at the bottom of the mounting beam 40, and the pressure support plate 201 is arranged in the mounting groove 401. Through the above scheme, the step of limiting the pressure support plate 201 and the step of loading the load downward in a stepless manner are facilitated.

[0039] Referring to Figures 2 to 4 As shown, the load conducting part 20 further comprises a middle support rod 204 penetrating between the middle support base 203 and the roller support 206, and a support spring 205 sleeved on the middle support rod 204. Through the above scheme, the real-time feedback of the loading load is facilitated, the accuracy of the feedback value is improved, and the shock absorption of the adjustable load device is facilitated, so as to avoid affecting the detection effect of the pressure sensor 202 and damaging the pressure sensor 202.

[0040] The load conducting part 20 further comprises a positioning screw 207, which is at least partially penetrating through the pressure support plate 201, the middle support base 203, and the roller support 206 and is threadedly connected with the roller support 206. Through the above scheme, the placement of the pressure sensor 202 is facilitated, and the real-time feedback of the pressure value is facilitated.

[0041] The load conducting part 20 further comprises a guide shaft 208 arranged in a vertical direction and penetrating through the middle support base 203, an upper end of the guide shaft 208 is at least partially arranged in the pressure support plate 201 and is connected with the pressure support plate 201 through the screw M1, and a lower end of the guide shaft 208 is connected with the roller support 206. Through the above scheme, the excessive deflection of the middle support base 203 is prevented, and the detection effect of the pressure sensor 202 is prevented from being affected and the pressure sensor 202 is prevented from being damaged.

[0042] The load conducting part 20 further comprises a positioning copper sleeve 209 sleeved on the guide shaft 208 and relatively close to the upper end, and a guide copper sleeve 212 sleeved on the guide shaft 208 and relatively close to the lower end, and the guide shaft 208 is relatively movable in the vertical direction. Through the above scheme, the stable rigid up-down movement of the shaft is facilitated.

[0043] The load conducting part 20 further comprises an adjusting pad 211 sleeved on the guide shaft 208 and at least partially in contact with the guide copper sleeve 212.

[0044] The load conducting part 20 further comprises an inner ring 210 sleeved on the guide shaft 208 and at least partially in contact with the adjusting pad 211.

[0045] The guide shaft rods 208 include two along one diagonal direction of the pressure support plate 201, and the positioning screws 207 include two along another diagonal direction of the pressure support plate 201. The above-mentioned scheme helps to realize stable and rigid up-down movement of the shaft rod, and meanwhile helps to reduce the deflection of the middle support seat caused by the large via gap of the positioning screws 207.

[0046] Referring to Figure 5 As shown, the bottom load loading part 30 includes a first support shaft 301 connected with the roller support 206, a second support shaft 305 connected with the roller support 206, and a pressure roller 304 sleeved on the first support shaft 301, the second support shaft 305 is at least partially arranged in the first support shaft 301, and the pressure roller 304 is at least partially arranged in the roller support 206.

[0047] The bottom load loading part 30 further includes a roller bearing 303 sleeved on the second support shaft 305 in contact with the pressure roller 304.

[0048] The bottom load loading part 30 further includes an end spring 302 sleeved on the first support shaft 301 and arranged in the roller bearing 303.

[0049] Referring to Figure 6 As shown, the roller support 206 includes an open slot 2061, a first connecting hole 2062, and a second connecting hole 2063, the open slot 2061 is arranged below the roller support 206, the first connecting hole 2062 and the second connecting hole 2063 are arranged on the side of the open slot 2061 and penetrate the open slot 2061, the pressure roller 304 is at least partially arranged in the open slot 2061, the first support shaft 301 is arranged in the first connecting hole 2062, and the second support shaft 305 is arranged in the first connecting hole 2062 and the second connecting hole 2063.

[0050] Referring to Figure 7 As shown, the embodiment further provides a test bench, including a bottom roller group 70, a support frame 60, and at least two adjustable load devices of the above-mentioned scheme.

[0051] The load conducting mode of the embodiment when the rolling body 50 is loaded is that the load is applied by adjusting the rotation depth of the adjusting screw 101 to push the pressure support plate 201 to move downward, and when the load reaches a predetermined value, the position of the adjusting screw 101 is fixed by the lock nut 102, so that the load is applied steplessly, and the load is transmitted from the top load loading part 10 to the load conducting part 20; in the load conducting part 20, the pressure support plate 201 is pushed to push the pressure sensor 202 after being pushed by the adjusting screw 101, the pressure sensor 202 pushes the middle support base 203, and the load is transmitted to the bottom load loading part 30; in the bottom load loading part 30, the middle support base 203 pushes the supporting spring 205, the supporting spring 205 pushes the roller support 206, the roller support 206 drives the first supporting shaft 301 and the second supporting shaft 305 to move downward, so as to drive the pressure roller 304 to move downward, and the load is transmitted to the rolling body 50. In the whole process of applying the load, the supporting spring 205 realizes the damping effect, and the guide shaft 208 realizes the rigid guidance.

[0052] The pressure detection value feedback mode of the embodiment when the rolling body 50 is loaded is that when the pressure support plate 201 is subjected to downward pressure, the final load acts on the rolling body 50 through the pressure roller 304, at this time, the rolling body 50 generates a reaction force on the pressure roller 304, the reaction force finally acts on the pressure sensor 202, and according to the real-time pressure of the pressure sensor 202, the technician performs corresponding operation.

[0053] The adjustable load device and the test bench provided by the utility model realize variable load application to the rolling body through the top load loading part, the load conducting part and the bottom load loading part, and the real-time feedback of the pressure value can be realized by using the intermediate load conducting part, the accuracy of the feedback data is improved, the stable rigid upward and downward movement of the adjustable load device in the load application process is ensured, the scheme has good structure rigidity, helps to improve the test bench detection effect, and provides a reliable detection scheme for related technicians.

[0054] It is obvious for those skilled in the art that various modifications and changes can be made to the above exemplary embodiments of the utility model without departing from the spirit and scope of the utility model. Therefore, the utility model aims to cover the modifications and changes of the utility model falling within the scope of the appended claims and equivalent technical solutions.

Claims

1. A variable load device, arranged in a vertical direction, characterized in that The adjustable load device comprises: a top load loading part for loading load; a load conducting part connected with the top load loading part for conducting the loaded load, the load conducting part comprising a pressure support plate, a pressure sensor, a middle support base, a roller support; a mounting beam disposed between the top load loading part and the pressure support plate and connected with the pressure support plate through a limiting screw; a bottom load loading part connected with the load conducting part for loading load to a rolling body; the top load loading part comprises: an adjusting screw rod penetrating through the mounting beam and abutting against the pressure support plate for adjusting the loaded load; a lock nut sleeved on the adjusting screw rod and disposed above the mounting beam and in contact with the mounting beam.

2. A variable load device as claimed in claim 1, characterised in that: The load conducting part further comprises a middle support rod penetrating through the middle support base and the roller support, and a support spring sleeved on the middle support rod.

3. A variable load device as claimed in claim 2, characterised in that: The load conducting part further comprises a positioning screw at least partially penetrating through the pressure support plate, the middle support base, and the roller support and threadedly connected with the roller support.

4. A variable load device as claimed in claim 3, characterised in that: The load conducting part further comprises a guide shaft rod disposed in a vertical direction and penetrating through the middle support base, an upper end of the guide shaft rod being at least partially disposed on the pressure support plate and connected with the pressure support plate through a screw, and a lower end of the guide shaft rod being connected with the roller support.

5. A variable load device as claimed in claim 4, characterised in that: The load conducting part further comprises a positioning copper sleeve sleeved on the guide shaft rod close to the upper end, and a guide copper sleeve sleeved on the guide shaft rod close to the lower end, the guide shaft rod being relatively movable in the vertical direction.

6. A variable load device as claimed in claim 5, characterised in that: The guide shaft rod comprises two guide shaft rods disposed in one diagonal direction of the pressure support plate, and the positioning screw comprises two positioning screws disposed in another diagonal direction of the pressure support plate.

7. A variable load device as claimed in claim 1, characterized in that: The bottom load loading part comprises a first support shaft connected with the roller support, a second support shaft connected with the roller support, and a pressure roller sleeved on the first support shaft, the second support shaft being at least partially disposed in the first support shaft, and the pressure roller being at least partially disposed in the roller support.

8. A variable load device as claimed in claim 7, characterised in that: The roller support comprises an open slot disposed below the roller support, a first connecting hole and a second connecting hole disposed on the side of the open slot and penetrating through the open slot, the pressure roller being at least partially disposed in the open slot, the first support shaft being disposed in the first connecting hole, and the second support shaft penetrating through the first connecting hole and the second connecting hole.

9. A variable load device as claimed in claim 8, characterised in that: The bottom load loading part further comprises a roller bearing sleeved on the second support shaft and in contact with the pressure roller.

10. A test bench, characterized in that The adjustable load device comprises a bottom roller group, a support frame, and at least two adjustable load devices according to claim 1 or claim 9.

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