Matching mechanism facilitating installation of crankshaft of table press
By setting a detachable HALF bearing block and a slot structure on one side of the crankshaft hole of the desktop press, the problem that the crankshaft hole cannot be installed with a large eccentricity crankshaft is solved, and the effect of convenient installation and protection of the bearing block is achieved.
Patent Information
- Application Number
- CN202422730040.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The crankshaft hole design of existing bench presses cannot accommodate crankshafts with large eccentricity, resulting in installation difficulties.
A detachable HALF bearing block is set on one side of the crankshaft hole of the fuselage. A matching hole is provided in the HALF bearing block to form a complete circular hole with the crankshaft hole and is fixed by a slot and fasteners. The slot forms an angle with the center of the crankshaft hole for tilted installation to offset the impact force of the crankshaft.
This makes it easier to install a crankshaft with a larger eccentricity, reduces the risk of damage to the half bearing block, and improves installation efficiency.
Smart Images

Figure CN223383997U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of desktop presses, in particular to a matching mechanism which is convenient for installing a crankshaft of a desktop press. Background Art
[0002] A bench press has many structural components, such as the machine body and crankshaft. The crankshaft hole in the machine body is a monolithic structure. If the crankshaft is significantly eccentric, the maximum crankshaft diameter will be larger than the crankshaft hole in the machine body, making the crankshaft impossible to install. Extensive research has been conducted to address this issue, enabling the installation of crankshafts with a maximum diameter larger than the crankshaft hole in the machine body. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a matching mechanism that is convenient for installing the crankshaft of a desktop press, wherein half of the crankshaft hole is set on the machine body and the other half is set on the HALF bearing block. When installing a crankshaft with a larger eccentricity, the HALF bearing block can be removed to install the crankshaft.
[0004] The utility model is realized through the following technical solutions: the utility model provides a matching mechanism for facilitating the installation of a crankshaft of a desktop press, comprising a body, a crankshaft hole being provided in the body, a crankshaft being provided in the crankshaft hole, and being characterized in that a HALF bearing block is detachably connected to one side of the crankshaft hole, a matching hole being provided in the HALF bearing block, and the matching hole and the crankshaft hole forming a complete circular hole.
[0005] According to a further technical solution, the crankshaft hole and the matching hole are semicircular.
[0006] According to a further technical solution, the diameter of the matching hole is the same as that of the crankshaft hole.
[0007] According to a further technical solution, slots are provided on both sides of the crankshaft hole, and the HALF bearing block is snapped into the slots.
[0008] According to a further technical solution, mounting grooves are further provided on both sides of the HALF bearing block, and fasteners are provided in the mounting grooves to be connected and fixed to the clamping grooves.
[0009] According to a further technical solution, the HALF bearing block is installed obliquely on one side of the crankshaft hole.
[0010] The beneficial effects of the present invention are as follows: 1. By arranging the HALF bearing block to be detachable, the crankshaft with a larger eccentricity can be installed compared to the prior art.
[0011] Second, by forming an angle between the slot and the vertical line passing through the center of the crankshaft hole, the HALF bearing block is tilted when it is installed and engaged with the slot, so that personnel can install the HALF bearing block on one side of the slot. The angle formed can also enable the crankshaft hole to offset the impact force of the crankshaft when it impacts upward, avoiding the upward impact force of the crankshaft directly acting on the HALF bearing block, which may cause the HALF bearing block to be easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] For ease of explanation, the present invention is described in detail with reference to the following specific embodiments and accompanying drawings.
[0013] Figure 1 It is a structural diagram of a bench press;
[0014] Figure 2 for Figure 1 Schematic diagram of the installation of the crankshaft and bearings of the mid-table press;
[0015] Figure 3 for Figure 2 Schematic diagram of the structure of the middle fuselage;
[0016] Figure 4 It is a structural diagram of the utility model;
[0017] Figure 5 for Figure 4 Schematic diagram of the fit between the HALF bearing block and the fuselage;
[0018] In the figure, the fuselage 11, the crankshaft hole 12, the bearing cover 13, the crankshaft 14, the separation gap 15, the mounting hole 16, the bearing 17, the matching hole 21, the slot 22, the mounting slot 23, and the HALF bearing block 24. DETAILED DESCRIPTION
[0019] like Figure 1-Figure 5 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1 The up, down, left, right, front and back directions of the projection relationship itself are consistent. The utility model provides a matching mechanism for facilitating the installation of a crankshaft of a desktop press, including a body 11. A crankshaft 14 needs to be installed in the body 11. A crankshaft hole 12 is provided in the body 11. A crankshaft 14 is provided in the crankshaft hole 12. A mounting assembly for mounting the crankshaft 14 is provided on one side of the crankshaft hole 12. A plurality of bearings 17 are provided in the crankshaft hole 12. The crankshaft 14 rotates through the bearings 17. A bearing cover 13 is also provided on one side of the crankshaft hole 12. The bearing cover 13 abuts against one side of the bearing 17.
[0020] Embodiment 1: Advantageously, the mounting assembly includes a partition slit 15 provided on one side of the crankshaft hole 12, the partition slit 15 separating the upper and lower sides of the crankshaft hole 12, and mounting holes 16 provided on the upper and lower sides of the partition slit 15. By providing fasteners in the mounting holes 16, the bearing installed in the crankshaft hole 12 is clamped. In this state, the crankshaft 14 is installed by passing the crankshaft 14 through the crankshaft hole 12. When the eccentricity of the crankshaft 14 is large, the crankshaft 14 cannot be installed because the maximum diameter of the crankshaft 14 is larger than the crankshaft hole 12.
[0021] Embodiment 2: Advantageously, the mounting assembly includes a semicircular crankshaft hole 12, a HALF bearing block 24 is provided on one side of the semicircular crankshaft hole 12, a matching hole 21 is provided in the HALF bearing block 24, the matching hole 21 is semicircular, the diameter of the matching hole 21 is the same as that of the crankshaft hole 12, and the matching hole 21 and the crankshaft hole 12 form a complete circular hole.
[0022] Advantageously, slots 22 are further provided on both sides of the crankshaft hole 12 , and the half bearing block 24 is snapped into the slots 22 .
[0023] Advantageously, mounting grooves 23 are further provided on both sides of the HALF bearing block 24 , and fasteners such as bolts are provided in the mounting grooves 23 for detachably connecting and fixing with the card slots 22 . If bolts are used, they are connected and fixed with the card slots 22 by threaded engagement.
[0024] Advantageously, an angle A is formed between the slot 22 and a vertical line passing through the center of the crankshaft hole 12 , so that the half bearing block 24 is installed obliquely on one side of the crankshaft hole 12 .
[0025] The mounting assembly in Example 1 can only install a crankshaft 14 whose maximum diameter is smaller than the diameter of the crankshaft hole 12. Since the mounting assembly in Example 2 has the HALF bearing block 24 detachably installed relative to one side of the crankshaft hole 12, when installing a crankshaft 14 with a larger eccentricity, the HALF bearing block 24 can be removed first before installing the crankshaft 14.
[0026] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention; therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.
Claims
1. A matching mechanism for facilitating the installation of a crankshaft of a table press, comprising a body (11), a crankshaft hole (12) being provided in the body (11), a crankshaft (14) being provided in the crankshaft hole (12), and characterized in that: A half bearing block (24) is detachably connected to one side of the crankshaft hole (12), a matching hole (21) is provided in the half bearing block (24), and the matching hole (21) and the crankshaft hole (12) form a complete circular hole.
2. The matching mechanism for facilitating installation of a crankshaft of a table press according to claim 1, characterized in that: The crankshaft hole (12) and the matching hole (21) are semicircular.
3. The fitting mechanism for facilitating installation of a crankshaft of a table press according to claim 2, characterized in that: The diameter of the matching hole (21) is the same as that of the crankshaft hole (12).
4. The fitting mechanism for facilitating installation of a crankshaft of a table press according to claim 1, characterized in that: The crankshaft hole (12) is further provided with clamping grooves (22) on both sides, and the HALF bearing block (24) is clamped into the clamping grooves (22).
5. The matching mechanism for facilitating installation of a crankshaft of a table press according to claim 4, characterized in that: Mounting grooves (23) are also provided on both sides of the HALF bearing block (24), and fasteners are provided in the mounting grooves (23) to be connected and fixed with the clamping grooves (22).
6. A fitting mechanism for facilitating installation of a crankshaft of a table press according to any one of claims 1 to 5, characterized in that: The HALF bearing block (24) is installed obliquely on one side of the crankshaft hole (12).